(Vue with Typescript) Error: Component cannot be mounted as template or render function is not defined

Having trouble mounting component due to template or render function not defined.

Hello everyone, I'm currently attempting to incorporate Typescript into my Laravel / Vue project. However, I've been encountering issues such as the following error message: (Failed to mount component: template or render function not defined.)

I would greatly appreciate any assistance. Thank you!

app.js

    require('./bootstrap');
    window.Vue = require('vue');

    import Example from './components/Example.vue';

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

tsconfig.json

{
  "compilerOptions": {
    "lib": ["dom", "es5", "es2015", "es2017"],
    "target": "es5",
    "module": "commonjs",
    "moduleResolution": "node",
    "strict": true,
    "noImplicitAny": true,
    "noImplicitThis": true,
    "noImplicitReturns": true,
    "sourceMap": true,
    "experimentalDecorators": true,
    "allowSyntheticDefaultImports": true
  },
  "paths": {
    "@/*": [
      "resources/js/*"
    ]
  },
  "include": [
    "resources/js/**/*.ts",
    "resources/js/**/*.vue"
  ],
  "files": [
    "resources/js/references.d.ts"
  ],
  "exclude": [
    "node_modules"
  ]
}

webpack.mix.js

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

mix.js('resources/js/app.js', 'public/js')
   .sass('resources/sass/app.scss', 'public/css')
   .webpackConfig({
      module: {
        rules: [
            {
                test: /\.tsx?$/,
                use: [{
                    loader: 'ts-loader',
                    options: {
                      appendTsSuffixTo: [ /\.vue$/ ]
                    }
                }],
                exclude: /node_modules/
            },
            {
                test: /\.vue$/,
                loader: 'vue-loader',
                options: {
                    esModule: true
                }
            }
        ],
      },
      resolve: {
          extensions: ['*', '.js', '.jsx', '.vue', '.ts', '.tsx'],
      },
  });

Example.vue

<template>
    <div></div>
</template>

<script lang="ts">
import Vue from 'vue'
export default Vue.extend({
    name: 'Example' as string,
    data() {
      return {}
    },
    mounted(): void {
        console.log('Component mounted.')
    }
})
</script>

Answer â„–1

There is no requirement to use Vue.extend following export default; just export the object directly.

<script lang="ts">
export default {
    name: 'Sample',
    data() {
      return {}
    },
    mounted(): void {
        console.log('Component has been successfully mounted.')
    }
}
</script>

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