
How to Fix Git Push Rejected Non-Fast-Forward Error
You run git push and get ! [rejected] with non-fast-forward

You run git push and get ! [rejected] with non-fast-forward

When running git rebase, you may see an error like fatal: Unable to create ...

You're mid-merge, and Git tells you there's a conflict. But you also have stashed changes...

You run git stash and see: fatal: Unable to create 'path/.git/index.lock...

When you run npm install and see an error like EBADENGINE or engi...

When you run npm install on a shared hosting server, you might see errors like