npm Is not working1

I'm new to programming community and i started to learn but every time i get a project from github . i can't open it in vs code enter image description here

npm ERR! code ENOENT
npm ERR! syscall open
npm ERR! path C:\Users\user1\Downloads\Letstravel-master\package.json
npm ERR! errno -4058
npm ERR! enoent ENOENT: no such file or directory, open 'C:\Users\user1\Downloads\Letstravel-master\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\user1\AppData\Roaming\npm-cache\_logs\2020-01-06T12_56_12_070Z-debug.log