I got an error "is not a valid repository name"

I have a question for you.

I created a new working branch from the working branch and tried to push a folder to it.

I get an error message below

fatal: remote error:

is not a valid repository name

Email support@github.com for help

What should I do?

I got the same error when I run

git fetch

git push -u origin new_branch_name

Hi @TamuraMasayuki, could you give me a few more details? Are you trying to push to an existing repository in GitHub?