我认为找不到组件时应该报错，而不是警告，这样可以更快的发现问题。

[xiaorong61]

Version

4.4.4

Environment info

Environment Info:

  System:
    OS: macOS 10.15.5
    CPU: (4) x64 Intel(R) Core(TM) i5-7360U CPU @ 2.30GHz
  Binaries:
    Node: 14.4.0 - /usr/local/bin/node
    Yarn: 1.22.4 - /usr/local/bin/yarn
    npm: 6.14.5 - /usr/local/bin/npm
  Browsers:
    Chrome: 83.0.4103.61
    Edge: 83.0.478.50
    Firefox: 72.0.2
    Safari: 13.1.1
  npmPackages:
    @vue/babel-helper-vue-jsx-merge-props:  1.0.0 
    @vue/babel-plugin-transform-vue-jsx:  1.1.2 
    @vue/babel-preset-app:  4.4.4 
    @vue/babel-preset-jsx:  1.1.2 
    @vue/babel-sugar-functional-vue:  1.1.2 
    @vue/babel-sugar-inject-h:  1.1.2 
    @vue/babel-sugar-v-model:  1.1.2 
    @vue/babel-sugar-v-on:  1.1.2 
    @vue/cli-overlay:  4.4.4 
    @vue/cli-plugin-babel: ~4.4.0 => 4.4.4 
    @vue/cli-plugin-eslint: ~4.4.0 => 4.4.4 
    @vue/cli-plugin-router:  4.4.4 
    @vue/cli-plugin-vuex:  4.4.4 
    @vue/cli-service: ~4.4.0 => 4.4.4 
    @vue/cli-shared-utils:  4.4.4 
    @vue/component-compiler-utils:  3.1.2 
    @vue/preload-webpack-plugin:  1.1.1 
    @vue/web-component-wrapper:  1.2.0 
    eslint-plugin-vue: ^6.2.2 => 6.2.2 
    vue: ^2.6.11 => 2.6.11 
    vue-eslint-parser:  7.1.0 
    vue-hot-reload-api:  2.3.4 
    vue-loader:  15.9.2 
    vue-style-loader:  4.1.2 
    vue-template-compiler: ^2.6.11 => 2.6.11 
    vue-template-es2015-compiler:  1.9.1 
  npmGlobalPackages:
    @vue/cli: 4.4.4

Steps to reproduce

我把
import xyz from './components/XZY'
错写成了
import {xyz} from './components/XZY'
，然后 npm run serve

What is expected?

报错并结束编译
error in ./src/App.vue?vue&type=script&lang=js&

"export 'XYZ' was not found in './components/XZY'

What is actually happening?

警告并忽略了问题
warning in ./src/App.vue?vue&type=script&lang=js&

"export 'XYZ' was not found in './components/XZY'

[haoqunjiang]

workaround:

// vue.config.js
module.exports = {
  chainWebpack: config => config.module.set('strictExportPresence', true)
}