Git pushing issues

I’m getting this error while pushing to my project:

error: Failed to push some refs to “https://github.com/project

$ git push projectalpha
fatal: The current branch master has no upstream branch.
To push the current branch and set the remote as upstream, use

git push --set-upstream projectalpha master

$ git push --set-upstream projectalpha masterF
error: src refspec master does not match any.
error: failed to push some refs to ‘https://gitlab.com/project5342

$ git push -u origin master
error: src refspec master does not match any.
error: failed to push some refs to ‘origin’

$ git push -u projectalpha master
error: src refspec master does not match any.
error: failed to push some refs to ‘https://gitlab.com/project5342

$ git pull --rebase
There is no tracking information for the current branch.
Please specify which branch you want to rebase against.
See git-pull(1) for details.

git pull <remote> <branch>

If you wish to set tracking information for this branch you can do so with:

git branch --set-upstream-to=<remote>/<branch> master

$ git pull projectalpha master
warning: redirecting to https://gitlab.com/sbce/project5342.git/
From https://gitlab.com/project5342

  • branch master -> FETCH_HEAD
    error: The following untracked working tree files would be overwritten by merge:

     README.md
     SUMMARY.md
    

Please move or remove them before you merge.
Aborting