问题描述：cmd / VSCode 启动vue项目报错：npm ERR! enoent ENOENT: no such file or directory, open’E:xxxx\package.json’
npm ERR! code ENOENTnpm ERR! syscall opennpm ERR! path D:\Applications_installed\CARD\xxx/package.jsonnpm ERR! errno -4058npm ERR! enoent ENOENT: no such file or directory, open 'D:\Applications_installed\CARD\xxx\package.json'npm ERR! enoent This is related to npm not being able to find a file.npm ERR! enoent
原因： 没有进入到项目文件夹下进行npm install，在项目文件夹外一层直接npm install去了……因为，项目文件夹里没有package.josn文件，系统找不到，就无法添加包依赖，随即报错。
总结：系统在文件目录下查找package.josn文件，找不到就报错！
package.json 文件详解
