2 ways to fix this,
git init
git add README.md
git commit -m "first commit"
git remote add origin https://github.com/hameedshk/test-stackoverflow.git
git push -u origin master
You have to commit something to publish repository.
The solution for me was to add some text in the 'summary' area (lower left hand corner of Github desktop GUI).
Try to add a file in your local repo before, you publish into github.
Seems like you are pushing only content e.g images of something. Make sure you have some text file in Git repo folder and then retry