[3.4.0] Reports warnings about default exports

What is the current behavior?
Since updating to webpack@3.4.0 the compiler shows warnings about export 'default'.

If the current behavior is a bug, please provide the steps to reproduce.

import Vue from 'vue'
import VueRouter from 'vue-router'
import Vuex from 'vuex'
import Vuetify from 'vuetify'

What is the expected behavior?
No warnings.

Please mention other relevant information such as the browser version, Node.js version, webpack version and Operating System.

WARNING in ./src/main.ts
18:8-17 "export 'default' (imported as 'VueRouter') was not found in 'vue-router'

WARNING in ./src/main.ts
19:8-12 "export 'default' (imported as 'Vuex') was not found in 'vuex'

WARNING in ./src/router.ts
42:24-33 "export 'default' (imported as 'VueRouter') was not found in 'vue-router'

WARNING in ./src/services/store.ts
8:23-27 "export 'default' (imported as 'Vuex') was not found in 'vuex'
webpack: Compiled with warnings.

Tried setting

devServer: {
	clientLogLevel: 'error',

but still reported these warnings.

Author: Fantashit

3 thoughts on “[3.4.0] Reports warnings about default exports

  1. i’m seeing this too. It only happens to me on rebuilds though (with webpack-dev-server). not the initial one. it first started when i went from webpack 3.3 to 3.4. everything still works, but i get lots of warnings. it’s not just default exports though. “export ‘connect’ was not found in ‘react-redux’

  2. I’m seeing it in 3.4.0 only on rebuilds as well with webpack-dev-middleware. If I have babel transpile the es6 modules by disabling the modules: false directive then I don’t see the warnings with 3.4.0 (but obviously that prevents tree shaking).

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