npm run serve时报错 no such file or directory,open '........\package.json'

出现如下报错：

D:\project\vue_4> npm run serve

npm ERR! path D:\project\vue_4\package.json

npm ERR! code ENOENT

npm ERR! errno -4058

npm ERR! syscall open

npm ERR! enoent ENOENT: no such file or directopen roject\vue_4\package.json'

npm ERR! enoent ENOENT: no such file or directonpm 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:

错误原因：是自己在vue cli3初始化项目后，直接在刚才创建的项目名称的外部文件夹运行了

npm run serve这段代码，所以才找不到package.json，应该要进入刚才的项目里运行代码。

进入项目：cd xxxxx