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Failed to connect component to new laravel 5.5 project

my colleague and I had problems with new and old laravel projects when it comes to using vue js, because every time we get the following error in the browser console:

>`[Vue warn]: Failed to mount component: template or render function not defined.
found in
---> <Example>
       <Root>
warn @ app.js:32173
mountComponent @ app.js:34241
Vue$3.$mount @ app.js:39678
Vue$3.$mount @ app.js:41868
init @ app.js:35260
createComponent @ app.js:36909
createElm @ app.js:36852
createChildren @ app.js:36980
createElm @ app.js:36885
patch @ app.js:37394
Vue._update @ app.js:34147
updateComponent @ app.js:34271
get @ app.js:34614
Watcher @ app.js:34603
mountComponent @ app.js:34275
Vue$3.$mount @ app.js:39678
Vue$3.$mount @ app.js:41868
Vue._init @ app.js:36000
Vue$3 @ app.js:36085
(anonymous) @ app.js:802
__webpack_require__ @ app.js:20
(anonymous) @ app.js:775
__webpack_require__ @ app.js:20
(anonymous) @ app.js:63
(anonymous) @ app.js:66`

This happens even on new laravel projects using the default Example.vue example

My current code is as follows

Example.vue

<template>
    <div class="container">
        <div class="row">
            <div class="col-md-8 col-md-offset-2">
                <div class="panel panel-default">
                    <div class="panel-heading">Example Component</div>

                    <div class="panel-body">
                        I'm an example component!
                    </div>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
    export default {
        mounted() {
            console.log('Component mounted.')
        }
    }
</script>

assets / js / app.js

/**
 * First we will load all of this project JavaScript dependencies which
 * includes Vue and other libraries. It is a great starting point when
 * building robust, powerful web applications using Vue and Laravel.
 */

require('./bootstrap');

window.Vue = require('vue');

/**
 * Next, we will create a fresh Vue application instance and attach it to
 * the page. Then, you may begin adding components to this application
 * or customize the JavaScript scaffolding to fit your unique needs.
 */

Vue.component('example', require('./components/Example.vue'));

const app = new Vue({
    el: '#app'
});

assets / js / bootstrap.js

window._ = require('lodash');

/**
 * We'll load jQuery and the Bootstrap jQuery plugin which provides support
 * for JavaScript based Bootstrap features such as modals and tabs. This
 * code may be modified to fit the specific needs of your application.
 */

try {
    window.$ = window.jQuery = require('jquery');

    require('bootstrap-sass');
} catch (e) {}

/**
 * We'll load the axios HTTP library which allows us to easily issue requests
 * to our Laravel back-end. This library automatically handles sending the
 * CSRF token as a header based on the value of the "XSRF" token cookie.
 */

window.axios = require('axios');

window.axios.defaults.headers.common['X-Requested-With'] = 'XMLHttpRequest';

/**
 * Next we will register the CSRF Token as a common header with Axios so that
 * all outgoing HTTP requests automatically have it attached. This is just
 * a simple convenience so we don't have to attach every token manually.
 */

let token = document.head.querySelector('meta[name="csrf-token"]');

if (token) {
    window.axios.defaults.headers.common['X-CSRF-TOKEN'] = token.content;
} else {
    console.error('CSRF token not found: https://laravel.com/docs/csrf#csrf-x-csrf-token');
}

/**
 * Echo exposes an expressive API for subscribing to channels and listening
 * for events that are broadcast by Laravel. Echo and event broadcasting
 * allows your team to easily build robust real-time web applications.
 */

// import Echo from 'laravel-echo'

// window.Pusher = require('pusher-js');

// window.Echo = new Echo({
//     broadcaster: 'pusher',
//     key: 'your-pusher-key'
// });

welcome.blade.php

<!doctype html>
<html lang="{{ app()->getLocale() }}">
    <head>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <meta name="csrf-token" value="{{csrf_token()}}">
        <title>Laravel</title>

        <!-- Fonts -->
        <link href="https://fonts.googleapis.com/css?family=Raleway:100,600" rel="stylesheet" type="text/css">
        <link rel="stylesheet" type="text/css" href="/css/app.css">
        <!-- Styles -->

    </head>
    <body>

        <div id="app">
            <example></example>
        </div>
        <script type="text/javascript" src="/js/app.js"></script>
    </body>
</html>

webpack.mix.js

let mix = require('laravel-mix');

/*
 |--------------------------------------------------------------------------
 | Mix Asset Management
 |--------------------------------------------------------------------------
 |
 | Mix provides a clean, fluent API for defining some Webpack build steps
 | for your Laravel application. By default, we are compiling the Sass
 | file for the application as well as bundling up all the JS files.
 |
 */

mix.js('resources/assets/js/app.js', 'public/js')
   .sass('resources/assets/sass/app.scss', 'public/css');

package.json

{
  "private": true,
  "scripts": {
    "dev": "npm run development",
    "development": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
    "watch": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
    "watch-poll": "npm run watch -- --watch-poll",
    "hot": "cross-env NODE_ENV=development node_modules/webpack-dev-server/bin/webpack-dev-server.js --inline --hot --config=node_modules/laravel-mix/setup/webpack.config.js",
    "prod": "npm run production",
    "production": "cross-env NODE_ENV=production node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"
  },
  "devDependencies": {
    "axios": "^0.16.2",
    "bootstrap-sass": "^3.3.7",
    "cross-env": "^5.0.1",
    "jquery": "^3.1.1",
    "laravel-mix": "^1.0",
    "lodash": "^4.17.4",
    "vue": "^2.1.10"
  },
  "dependencies": {
    "cross-env": "^5.0.5",
    "vee-validate": "^2.0.0-rc.17"
  }
}
0
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2 answers

If you haven't changed anything and correctly installed and installed JavaScript, the problem may be the default implementation of Laravel.

, , , , , (vue ) , .

, Vue ( , - JavaScript). , Vue, , - :

< > /App.vue

<template>
  <div>
    I'm a base component
    <!-- vue-router will mount components here -->
    <router-view></router-view>
  </div>
</template>

app.js

import App from './components/App.vue' 

// "h" is just a standard taken from JSX
new Vue({
  render: h => h(App)
}).$mount("#app");

app.blade.php

<html>
  <head>
    <!-- head stuff -->
  </head>
  <body>
    <div id="app"></div>
    <script src="app.js"></script>
  </body>
</html>

, app.blade.php , App.vue , , ( vue-router). , app.js webpack, , , . , , routes/web.php . , , SPA.

Laravel , Vue , :

app.js

Vue.component('my-component', require('./components/My-component.vue'));

const app = new Vue({
    el: '#app'
});

index.blade.php

<html>
  <head>
    <!-- head stuff -->
  </head>
  <body>
    <div id="app">
      <my-component></my-component>
    </div>
    <script src="app.js"></script>
  </body>
</html>

, app div . , vue +, Laravel Mix , runtime + compiler Vue ( , ).

, Laravel Mix, , , , " Laravel Mix Vue + compiler", , .

webpack , , Vue webpack simple config .

webpack, webpack, runtime + compiler build:

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

, . , Webpack Mix Vue + compiler, , . , , , , .

+1

.storybook/webpack.config.js

const path = require('path');

module.exports = async ({ config, mode }) => {

    config.module.rules.push({
        test: /\.ts$/,
        exclude: /node_modules/,
        use: [
            {
                loader: 'ts-loader',
                options: {
                    appendTsSuffixTo: [/\.vue$/],
                    transpileOnly: true
                },
            }
        ],
    });

    return config;
};
0

Source: https://habr.com/ru/post/1686013/

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