npm ERR! code ENOENT
npm ERR! syscall open
npm ERR! path D:\Sys\package.json
npm ERR! errno -4058
npm ERR! enoent ENOENT: no such file or directory, open 'D:\Sys\package.json'
npm ERR! enoent This is related to npm not being able to find a file.
npm ERR! enoent

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Lenovo\AppData\Roaming\npm-cache\_logs\2021-11-02T08_47_57_691Z-debug.log

原因就是找不到package.json
其中可能是誤刪了package.json，另一個可能是不在項目那一級運行，可能在上一級或者下一級