npm run serve; 'vue-cli-service' is not recognized as an internal or external command,

 

⚡Administrator ❯❯ npm run serve

> guolei-vue@0.1.0 serve
> vue-cli-service serve

'vue-cli-service' is not recognized as an internal or external command,
operable program or batch file.

 

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The error "'vue-cli-service' is not recognized" typically occurs on Windows when the necessary package is not installed or its executable path is not correctly configured in your system's environment variables. 

 

是因为缺少 node_modules文件夹 

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