GitHub: ERROR: Repository not found. fatal: The remote end hung up unexpectedly (different from similar posts apparently)

Question

I created a directory, hello_git. In this directory I created a file, hello_git.py, which prints out a \"Hello git!\" message.

Then I made

Answer 1

In my case a problem was in a wrong URL.

Instead of

https://gitlab.com/username/my_repository.git

I wrote

https://gitlab.com/username/my_repository/ (copied from a browser)