Adding an existing project to GitHub using the command line

I’m following exactly what they say on this page and everything is working until
git push origin main
then I get this error
error: failed to push some refs to ‘
Not sure what exactly this means or how to fix it?

You’ve left out the -u, it says git push -u origin main

Any and all help is greatly appreciated

error: src refspec main does not match any.

This means the ref main you’re trying to push doesn’t exist on your machine. The output from the commit command shows your branch is actually called master. You can use the following command to rename the branch to main:

git branch -m master main