Wasp cannot find wasp root after downloading MageGPT app

Hi, nice to meet you all!
I am having issues to run the app that MageGPT generated for me.
I have installed wasp and I have tried to setup a blank app and it worked.
Unfortunately when I tried running the generated code, it said:

Couldn't find wasp project root - make sure you are running this command from a Wasp project.

I am wondering how to fix this issue. I will appreciate your help.