Error: Expected a value of type ‘Map‘, but got one of type ‘Null’

Steps to Reproduce

  1. Run flutter create bug.
  2. Update the files as follows: …

Expected results:

Actual results:

Logs

flutter run --verbose
[ +131 ms] executing: uname -m
[  +64 ms] Exit code 0 from: uname -m
[        ] x86_64
[  +13 ms] executing: [/home/aks/sdks/flutter/] git -c log.showSignature=false log -n 1 --pretty=format:%%H
[   +9 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%%H
[        ] 1f368780d61c54dea9595ec51dd9c269b5ff4b2f
[   +1 ms] executing: [/home/aks/sdks/flutter/] git tag --points-at 1f368780d61c54dea9595ec51dd9c269b5ff4b2f
[  +26 ms] Exit code 0 from: git tag --points-at 1f368780d61c54dea9595ec51dd9c269b5ff4b2f
[   +2 ms] executing: [/home/aks/sdks/flutter/] git describe --match *.*.* --long --tags 1f368780d61c54dea9595ec51dd9c269b5ff4b2f
[  +60 ms] Exit code 0 from: git describe --match *.*.* --long --tags 1f368780d61c54dea9595ec51dd9c269b5ff4b2f
[        ] 2.3.0-12.0.pre-97-g1f368780d6
[  +10 ms] executing: [/home/aks/sdks/flutter/] git rev-parse --abbrev-ref --symbolic @{u}
[   +7 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[        ] origin/master
[        ] executing: [/home/aks/sdks/flutter/] git ls-remote --get-url origin
[   +9 ms] Exit code 0 from: git ls-remote --get-url origin
[        ] https://github.com/flutter/flutter.git
[ +159 ms] executing: [/home/aks/sdks/flutter/] git rev-parse --abbrev-ref HEAD
[   +7 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[        ] master
[ +100 ms] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[   +5 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'WindowsUwpEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[ +113 ms] executing: /home/aks/Android/Sdk/platform-tools/adb devices -l
[  +65 ms] List of devices attached
[   +7 ms] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[   +6 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'WindowsUwpEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[        ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[ +140 ms] Skipping pub get: version match.
[ +209 ms] Generating
/home/aks/Desktop/flutter_projects/sszone/bug/android/app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java
[ +312 ms] Launching lib/main.dart on Chrome in debug mode...
[ +189 ms] Updating assets
[ +169 ms] Waiting for connection from debug service on Chrome...
[ +129 ms] <- reset
[  +15 ms] /home/aks/sdks/flutter/bin/cache/dart-sdk/bin/dart --disable-dart-dev
/home/aks/sdks/flutter/bin/cache/artifacts/engine/linux-x64/frontend_server.dart.snapshot --sdk-root
/home/aks/sdks/flutter/bin/cache/flutter_web_sdk/ --incremental --target=dartdevc --debugger-module-names --experimental-emit-debug-metadata
-DFLUTTER_WEB_AUTO_DETECT=true --output-dill /tmp/flutter_tools.OSJSKT/flutter_tool.YZEBLY/app.dill --libraries-spec
file:///home/aks/sdks/flutter/bin/cache/flutter_web_sdk/libraries.json --packages
/home/aks/Desktop/flutter_projects/sszone/bug/.dart_tool/package_config.json -Ddart.vm.profile=false -Ddart.vm.product=false --enable-asserts
--track-widget-creation --filesystem-root /tmp/flutter_tools.OSJSKT/flutter_tools.VJKOMH --filesystem-scheme org-dartlang-app
--initialize-from-dill build/b1b715402d823b7fd5c2b68d2edcb2ce.cache.dill.track.dill --platform
file:///home/aks/sdks/flutter/bin/cache/flutter_web_sdk/kernel/flutter_ddc_sdk_sound.dill --sound-null-safety
[  +19 ms] <- compile org-dartlang-app:/web_entrypoint.dart
[+33594 ms] Waiting for connection from debug service on Chrome... (completed in 33.7s)
[   +1 ms] Synced 28.5MB.
[        ] <- accept
[        ] Caching compiled dill
[ +275 ms] Using Google Chrome 90.0.4430.212 

[   +4 ms] executing: uname -m
[  +11 ms] Exit code 0 from: uname -m
[        ] x86_64
[ +883 ms] [CHROME]:
[   +1 ms] [CHROME]:DevTools listening on ws://127.0.0.1:39733/devtools/browser/f3575379-22f8-40dc-9b6b-5a91fb6bc4fa
[ +927 ms] DwdsInjector: Received request for entrypoint at http://localhost:35013/main_module.bootstrap.js
[  +14 ms] MetadataProvider: Loading debug metadata...
[  +37 ms] MetadataProvider: Loaded debug metadata (sound null safety)
[  +20 ms] DwdsInjector: Injected debugging metadata for entrypoint at http://localhost:35013/main_module.bootstrap.js
[+4953 ms] ChromeProxyService: Initializing expression compiler for main_module.bootstrap.js with sound null safety: true
[ +133 ms] DevHandler: Debug service listening on ws://127.0.0.1:46057/EdVESXqJcTQ=/ws

[  +41 ms] This app is linked to the debug service: ws://127.0.0.1:46057/EdVESXqJcTQ=/ws
[  +18 ms] Debug service listening on ws://127.0.0.1:46057/EdVESXqJcTQ=/ws
[   +1 ms] 💪 Running with sound null safety 💪
[   +9 ms] 🔥  To hot restart changes while running, press "r" or "R".
[        ] For a more detailed help message, press "h". To quit, press "q".
[   +1 ms] An Observatory debugger and profiler on Chrome is available at: http://127.0.0.1:46057/EdVESXqJcTQ=
[+1339 ms] DevTools activation throttled until 2021-05-22 21:06:36.602314.
[+4030 ms] Error: Expected a value of type 'Map<String, dynamic>', but got one of type 'Null'
                        at Object.throw_ [as throw] (http://localhost:35013/dart_sdk.js:5054:11)
                        at Object.castError (http://localhost:35013/dart_sdk.js:5013:15)
                        at Object.cast [as as] (http://localhost:35013/dart_sdk.js:5336:17)
                        at Function.as_C [as as] (http://localhost:35013/dart_sdk.js:4959:19)
                        at _engine.EngineSingletonFlutterWindow.new.handleNavigationMessage (http://localhost:35013/dart_sdk.js:173578:52)
                        at handleNavigationMessage.next (<anonymous>)
                        at runBody (http://localhost:35013/dart_sdk.js:37456:34)
                        at Object._async [as async] (http://localhost:35013/dart_sdk.js:37487:7)
                        at _engine.EngineSingletonFlutterWindow.new.handleNavigationMessage (http://localhost:35013/dart_sdk.js:173576:20)
                        at _engine.EnginePlatformDispatcher.__.[_sendPlatformMessage] (http://localhost:35013/dart_sdk.js:161799:68)
                        at _engine.EnginePlatformDispatcher.__.sendPlatformMessage (http://localhost:35013/dart_sdk.js:161627:33)
                        at _DefaultBinaryMessenger.[_sendPlatformMessage]
                        (http://localhost:35013/packages/flutter/src/services/system_channels.dart.lib.js:2096:38)
                        at _DefaultBinaryMessenger.send
(http://localhost:35013/packages/flutter/src/services/system_channels.dart.lib.js:2138:40)
                        at OptionalMethodChannel._invokeMethod
(http://localhost:35013/packages/flutter/src/services/system_channels.dart.lib.js:937:50)
                        at _invokeMethod.next (<anonymous>)
                        at runBody (http://localhost:35013/dart_sdk.js:37456:34)
                        at Object._async [as async] (http://localhost:35013/dart_sdk.js:37487:7)
                        at OptionalMethodChannel.[_invokeMethod]
(http://localhost:35013/packages/flutter/src/services/system_channels.dart.lib.js:935:20)
                        at OptionalMethodChannel.[_invokeMethod]
(http://localhost:35013/packages/flutter/src/services/system_channels.dart.lib.js:1042:34)
                        at OptionalMethodChannel.invokeMethod
(http://localhost:35013/packages/flutter/src/services/system_channels.dart.lib.js:1038:36)
                        at invokeMethod.next (<anonymous>)
                        at runBody (http://localhost:35013/dart_sdk.js:37456:34)
                        at Object._async [as async] (http://localhost:35013/dart_sdk.js:37487:7)
                        at OptionalMethodChannel.invokeMethod
(http://localhost:35013/packages/flutter/src/services/system_channels.dart.lib.js:1037:20)
                        at Function.selectSingleEntryHistory
(http://localhost:35013/packages/flutter/src/services/system_navigator.dart.lib.js:26:56)
                        at navigator$.NavigatorState.new.initState
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:24935:42)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51379:54)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.InheritedElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.InheritedElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.InheritedElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.InheritedElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.InheritedElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.InheritedElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.InheritedElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.InheritedElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.InheritedElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.InheritedElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.InheritedElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.InheritedElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.InheritedElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.InheritedElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.InheritedElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.InheritedElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.InheritedElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.InheritedElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatelessElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatelessElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatelessElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatelessElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatelessElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatelessElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.InheritedElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.InheritedElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.InheritedElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.InheritedElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.InheritedElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.InheritedElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatelessElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatelessElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatelessElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatelessElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatelessElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatelessElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatefulElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatefulElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51405:13)
                        at framework.StatefulElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51398:27)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.InheritedElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.InheritedElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.InheritedElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.InheritedElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.InheritedElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.InheritedElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatefulElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatefulElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51405:13)
                        at framework.StatefulElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51398:27)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatelessElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatelessElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatelessElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatelessElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatelessElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatelessElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.InheritedElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.InheritedElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.InheritedElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.InheritedElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.InheritedElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.InheritedElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.SingleChildRenderObjectElement.new.inflateWidget
                        (http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.SingleChildRenderObjectElement.new.updateChild
                        (http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.SingleChildRenderObjectElement.new.mount
                        (http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:44756:29)
                        at framework.StatelessElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatelessElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatelessElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatelessElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatelessElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatelessElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatelessElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatelessElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatelessElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatelessElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatelessElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatelessElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatelessElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatelessElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatelessElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatelessElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatelessElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatelessElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.InheritedElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.InheritedElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.InheritedElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.InheritedElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.InheritedElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.InheritedElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.InheritedElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.InheritedElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.InheritedElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.InheritedElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.InheritedElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.InheritedElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.SingleChildRenderObjectElement.new.inflateWidget
                        (http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.SingleChildRenderObjectElement.new.updateChild
                        (http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.SingleChildRenderObjectElement.new.mount
                        (http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:44756:29)
                        at framework.StatefulElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatefulElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51405:13)
                        at framework.StatefulElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51398:27)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.InheritedElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.InheritedElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.InheritedElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.InheritedElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.InheritedElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.InheritedElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatefulElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatefulElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51405:13)
                        at framework.StatefulElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51398:27)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at _InheritedNotifierElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at _InheritedNotifierElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at _InheritedNotifierElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at _InheritedNotifierElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at _InheritedNotifierElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at _InheritedNotifierElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatefulElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatefulElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51405:13)
                        at framework.StatefulElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51398:27)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.InheritedElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.InheritedElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.InheritedElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.InheritedElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.InheritedElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.InheritedElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatefulElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatefulElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51405:13)
                        at framework.StatefulElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51398:27)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.InheritedElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.InheritedElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.InheritedElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.InheritedElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.InheritedElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.InheritedElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatefulElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatefulElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51405:13)
                        at framework.StatefulElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51398:27)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.InheritedElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.InheritedElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.InheritedElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.InheritedElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.InheritedElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.InheritedElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatefulElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatefulElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51405:13)
                        at framework.StatefulElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51398:27)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at _InheritedNotifierElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at _InheritedNotifierElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at _InheritedNotifierElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at _InheritedNotifierElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at _InheritedNotifierElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at _InheritedNotifierElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.SingleChildRenderObjectElement.new.inflateWidget
                        (http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.SingleChildRenderObjectElement.new.updateChild
                        (http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.SingleChildRenderObjectElement.new.mount
                        (http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:44756:29)
                        at _InheritedNotifierElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at _InheritedNotifierElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at _InheritedNotifierElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at _InheritedNotifierElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at _InheritedNotifierElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at _InheritedNotifierElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatefulElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatefulElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51405:13)
                        at framework.StatefulElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51398:27)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatefulElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatefulElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51405:13)
                        at framework.StatefulElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51398:27)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at _InheritedNotifierElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at _InheritedNotifierElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at _InheritedNotifierElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at _InheritedNotifierElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at _InheritedNotifierElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at _InheritedNotifierElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.SingleChildRenderObjectElement.new.inflateWidget
                        (http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.SingleChildRenderObjectElement.new.updateChild
                        (http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.SingleChildRenderObjectElement.new.mount
                        (http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:44756:29)
                        at _InheritedNotifierElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at _InheritedNotifierElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at _InheritedNotifierElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at _InheritedNotifierElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at _InheritedNotifierElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at _InheritedNotifierElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatefulElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatefulElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51405:13)
                        at framework.StatefulElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51398:27)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatefulElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatefulElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51405:13)
                        at framework.StatefulElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51398:27)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.InheritedElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.InheritedElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.InheritedElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.InheritedElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.InheritedElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.InheritedElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatefulElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatefulElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51405:13)
                        at framework.StatefulElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51398:27)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.InheritedElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.InheritedElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.InheritedElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.InheritedElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.InheritedElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.InheritedElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatefulElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatefulElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51405:13)
                        at framework.StatefulElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51398:27)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatefulElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatefulElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51405:13)
                        at framework.StatefulElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51398:27)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.InheritedElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.InheritedElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.InheritedElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.InheritedElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.InheritedElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.InheritedElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.InheritedElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.InheritedElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.InheritedElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.InheritedElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.InheritedElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.InheritedElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatefulElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatefulElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatefulElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51405:13)
                        at framework.StatefulElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatefulElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:51398:27)
                        at framework.StatefulElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at framework.StatelessElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at framework.StatelessElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at framework.StatelessElement.new.performRebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30128:31)
                        at framework.StatelessElement.new.rebuild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:29263:12)
                        at framework.StatelessElement.new.[_firstBuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30096:12)
                        at framework.StatelessElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:30092:26)
                        at RenderObjectToWidgetElement.new.inflateWidget
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28926:16)
                        at RenderObjectToWidgetElement.new.updateChild
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:28791:25)
                        at RenderObjectToWidgetElement.new.[_rebuild]
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:53695:37)
                        at RenderObjectToWidgetElement.new.mount
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:53675:29)
                        at http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:53611:37
                        at framework.BuildOwner.new.buildScope
(http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:50873:13)
                        at RenderObjectToWidgetAdapter.new.attachToRenderTree
                        (http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:53610:17)
                        at binding$5.WidgetsFlutterBinding.new.attachRootWidget
                        (http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:53482:238)
                        at http://localhost:35013/packages/flutter/src/widgets/widget_span.dart.lib.js:53476:14
                        at internalCallback (http://localhost:35013/dart_sdk.js:24266:11)
[ +169 ms] The Flutter DevTools debugger and profiler on Chrome is available at:
                    http://127.0.0.1:9102?uri=http%%3A%%2F%%2F127.0.0.1%%3A46057%%2FEdVESXqJcTQ%%3D

[2]+  Stopped                 flutter run --verbose

flutter analyze
Analyzing bug...                                                        
No issues found! (ran in 3.4s)

flutter doctor -v
[✓] Flutter (Channel master, 2.3.0-13.0.pre.97, on Ubuntu 20.04.2 LTS 5.8.0-53-generic, locale en_IN)
    • Flutter version 2.3.0-13.0.pre.97 at /home/aks/sdks/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 1f368780d6 (9 hours ago), 2021-05-21 15:04:05 -0400
    • Engine revision 2f067fc4c5
    • Dart version 2.14.0 (build 2.14.0-136.0.dev)

[!] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    • Android SDK at /home/aks/Android/Sdk
    • Platform android-30, build-tools 30.0.3
    • Java binary at: /usr/local/android-studio/jre/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)
    ✗ Android license status unknown.
      Run `flutter doctor --android-licenses` to accept the SDK licenses.
      See https://flutter.dev/docs/get-started/install/linux#android-setup for more details.

[✓] Chrome - develop for the web
    • Chrome at google-chrome

[✓] Android Studio (version 4.1)
    • Android Studio at /usr/local/android-studio
    • Flutter plugin version 54.1.1
    • Dart plugin version 201.9335
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)

[✓] IntelliJ IDEA Community Edition (version 2021.1)
    • IntelliJ at /snap/intellij-idea-community/299
    • Flutter plugin version 54.0.3
    • Dart plugin version 203.7759

[✓] VS Code
    • VS Code at /snap/code/current
    • Flutter extension version 3.22.0

[✓] Connected device (1 available)
    • Chrome (web) • chrome • web-javascript • Google Chrome 90.0.4430.212

! Doctor found issues in 1 category.

1 thought on “Error: Expected a value of type ‘Map‘, but got one of type ‘Null’

  1. @arv-aks I just fixed it switching from flutter channel master to flutter channel stable. It could be a problem with the version 2.3.0 on the master branch

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