Git拉取的项目子项目下运行npm run serve提示：‘vue-cli-service‘ 不是内部或外部命令，也不是可运行的程序或批处理文件。_npm run serve > vue-sport@1.0.0 serve > vue-cli-se

以下npm命令都可以使用cnpm或yarn命令代替。

1. 查看package.json里面有没有vue-cli-service；有则删除node modules，重新安装 node_modules：

npm install 

没有则单独安装 vue-cli-service：

npm install -g @vue/cli-service

（或者：直接删除node modules和package-lock.json，运行npm install。）

2. vscode终端运行：

vue -V

 查看vue-cli版本为：2.9.6

3. 卸载旧版本vue-cli

npm uninstall vue-cli -g

4. 再安装新版本：

npm install -g @vue/cli

5. 再运行：

npm run serve

6. 报错：

npm run serve
 
> subapp-admin@0.1.0 serve
> vue-cli-service serve
 
internal/modules/cjs/loader.js:638
    throw err;
    ^
 
Error: Cannot find module '@vue/cli-plugin-babel'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
    at Function.Module._load (internal/modules/cjs/loader.js:562:25)
    at Module.require (internal/modules/cjs/loader.js:692:17)
    at require (internal/modules/cjs/helpers.js:25:18)
    at idToPlugin (C:\Users\Administrator\AppData\Roaming\npm\node_modules\@vue\cli-service\lib\Service.js:145:14)
    at Object.keys.concat.filter.map.id (C:\Users\Administrator\AppData\Roaming\npm\node_modules\@vue\cli-service\lib\Service.js:184:20)
    at Array.map (<anonymous>)
    at Service.resolvePlugins (C:\Users\Administrator\AppData\Roaming\npm\node_modules\@vue\cli-service\lib\Service.js:170:10)
    at new Service (C:\Users\Administrator\AppData\Roaming\npm\node_modules\@vue\cli-service\lib\Service.js:32:25)
    at Object.<anonymous> (C:\Users\Administrator\AppData\Roaming\npm\node_modules\@vue\cli-service\bin\vue-cli-service.js:15:17)

7. 安装开发依赖：

npm install  @vue/cli-plugin-babel -g

依赖安装提示：

peerDependencies WARNING @vue/babel-preset-app@^4.5.13 requires a peer of vue@^2 || ^3.0.0-0 but none was installed

安装：

npm install -g vue@^2

8. 报错：

npm run serve
 
> master@0.1.1 serve
> vue-cli-service serve
 
internal/modules/cjs/loader.js:638
    throw err;
    ^
 
Error: Cannot find module '@vue/cli-plugin-eslint'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
    at Function.Module._load (internal/modules/cjs/loader.js:562:25)
    at Module.require (internal/modules/cjs/loader.js:692:17)
    at require (internal/modules/cjs/helpers.js:25:18)
    at idToPlugin (C:\Users\Administrator\AppData\Roaming\npm\node_modules\@vue\cli-service\lib\Service.js:145:14)
    at Object.keys.concat.filter.map.id (C:\Users\Administrator\AppData\Roaming\npm\node_modules\@vue\cli-service\lib\Service.js:184:20)
    at Array.map (<anonymous>)
    at Service.resolvePlugins (C:\Users\Administrator\AppData\Roaming\npm\node_modules\@vue\cli-service\lib\Service.js:170:10)
    at new Service (C:\Users\Administrator\AppData\Roaming\npm\node_modules\@vue\cli-service\lib\Service.js:32:25)
    at Object.<anonymous> (C:\Users\Administrator\AppData\Roaming\npm\node_modules\@vue\cli-service\bin\vue-cli-service.js:15:17)

安装：

npm install -g @vue/cli-plugin-eslint

9. 提示：

peerDependencies WARNING eslint-loader@^2.2.1 requires a peer of eslint@>=1.6.0 <7.0.0 but none was installed

安装：

npm install -g eslint@1.6.0

npm install 与 npm install XXX交替使用