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I am facing the problem that once I import vue, the wrapper element for vue (in my case #app) will be replaced with the following comment

<!--function (e,n,r,o){return sn(t,e,n,r,o,!0)}-->

There is no error in the console and webpack compiles fine, I do however get the console log from vue's mounted method.

My index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <h1>some content</h1>
        {{test}}
    </div>
    <script src="dist/bundle.js"></script>
</body>
</html>

webpack.config.js

const path = require('path');

module.exports = {
    entry: './src/app.js',
    output: {
        filename: 'bundle.js',
        path: path.resolve(__dirname, 'dist')
    }
}

src/app.js

import Vue from 'vue'

const app = new Vue({
    el: "#app",
    data: {
        test: "asdf"
    },
    mounted() {
        console.log('mounted')
    }
})
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1 Answer

You are running a runtime-only build without the template compiler.

Check out https://vuejs.org/v2/guide/installation.html#Webpack

You need to create an alias for 'vue', so webpack includes the correct vue/dist/*.js from your node_modules/:

module.exports = {
  // ...
  resolve: {
    alias: {
      'vue$': 'vue/dist/vue.esm.js'
    }
  }
}

See also https://forum.vuejs.org/t/what-is-the-compiler-included-build/13239


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