How to fix git error the fatal refusing to merge unrelated histories?

While working on a project, I tried to pull code and got git error “fatal refusing to merge unrelated histories”. This error occurs when two unrelated projects are merged those have mismatched commit histories.

Solution for this error is toggling the allow-unrelated-histories switch. After “git pull” or “git merge” commands add this flag “—allow-unrelated-histories”. Complete command will be as following.

git pull origin master –allow-unrelated-histories

You can find more information in Git official documentation.