I need to merge or rebase? I don't know what's the difference I just want to push on github.

CodePudding user response：

First you have to fetch then try to Push

CodePudding user response：

Click on a pull the branch first and resolve the merge conflict

Try again to push the code.

If there's any merge conflict it'll throw a message push failed. Nothing to worry about. It happens because of a merge conflict, Push the code again after resolving conflicts.