npm ERR! enoent ENOENT: no such file or directory, open ‘D:\package.json‘

D:\>cnpm run dev:weapp
npm ERR! code ENOENT
npm ERR! syscall open
npm ERR! path D:\package.json
npm ERR! errno -4058
npm ERR! enoent ENOENT: no such file or directory, open 'D:\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\wangting\AppData\Roaming\npm-cache\_logs\2020-12-10T06_44_23_552Z-debug.log