Error: Cannot find module '@vue/babel-preset-app'

Question

When I create a new vue application, and I run the server I get an error, after the compilation failed. Does anyone have where the problem comes from?

Here is a screen shot of my Terminal and my browser.

The main.js file

import Vue from 'vue'
import App from './App.vue'

Vue.config.productionTip = false

new Vue({
  render: h => h(App),
}).$mount('#app')

And the package.json file

{
  "name": "vuedemo",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "serve": "vue-cli-service serve",
    "build": "vue-cli-service build",
    "lint": "vue-cli-service lint"
  },
  "dependencies": {
    "core-js": "^2.6.5",
    "vue": "^2.6.10"
  },
  "devDependencies": {
    "@vue/cli-plugin-babel": "^3.7.0",
    "@vue/cli-plugin-eslint": "^3.7.0",
    "@vue/cli-service": "^3.7.0",
    "babel-eslint": "^10.0.1",
    "eslint": "^5.16.0",
    "eslint-plugin-vue": "^5.0.0",
    "vue-template-compiler": "^2.5.21"
  },
  "eslintConfig": {
    "root": true,
    "env": {
      "node": true
    },
    "extends": [
      "plugin:vue/essential",
      "eslint:recommended"
    ],
    "rules": {},
    "parserOptions": {
      "parser": "babel-eslint"
    }
  },
  "postcss": {
    "plugins": {
      "autoprefixer": {}
    }
  },
  "browserslist": [
    "> 1%",
    "last 2 versions"
  ]
}

Answer 1

I solve this issue, after run this command. npm install @vue/babel-preset-app --save-dev

then it throw me this error Module build failed (from ./node_modules/@vue/cli-plugin-babel/node_modules/babel-loader/lib/index.js)

I launched the following command npm install -D babel-loader @babel/core @babel/preset-env webpack

it gave me a new error Failed to resolve loader: vue-style-loader

after that I run a npm install vue-style-loader

and it gave me another error angain, this one Error: Loading PostCSS Plugin failed: Cannot find module 'autoprefixer' Finally I run the next following command, npm i autoprefixer and It worked for me.

Answer 2

Adding @vue/babel-preset-app as one of the devDependencies should solve the issue.

If you are using npm, do

npm install @vue/babel-preset-app --save-dev

for yarn

yarn add @vue/babel-preset-app --save-dev

for pnpm

pnpm install @vue/babel-preset-app --save-dev