
Git Push Rejected Non Fast Forward: Troubleshooting Checklist
If you see ! [rejected] main -> main (non-fast-forward) when running

If you see ! [rejected] main -> main (non-fast-forward) when running

If you're running npm install on a Linux machine and get a build failure for

You notice the Windows Security icon in the system tray shows a yellow warning. Opening it reveal...

You're in VS Code, push or pull fails with "Authentication failed"—this is common and...

You run git pull, then git push, and get: ! [rejected] non-fast-f...

If you click the terminal panel in VS Code and nothing appears, or it opens but stays blank, the ...