src refspec master does not match any error: failed to push some refs to 'github.com: code example

Example 1: error: src refspec master does not match any. git

# You are trying to add an empty repository, add something first, like a readme
touch README.md
git add README.md
git commit -m "Initial commit"
git push --set-upstream origin master

Example 2: error: src refspec main does not match any error: failed to push some refs to

Check master vs main