error: src refspec main does not match any error: failed to push some refs to 'https://github.com/subhojeet1999/CHECK.git' code example

Example 1: error: src refspec master does not match any error: failed to push some refs to android studio

git commit -m "initial commit"
git push origin master

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

Check master vs main