Git - error failed to push some refs to git resolve - Solved

I encountered this error while working on my PHP project and attempting to add it to my Bitbucket account. First, I created a repository on my Bitbucket account and cloned the repository. However, when I tried to push my project for the first time, I encountered the following error:

error failed to push some refs to 
https://infotech@bitbucket.org/infotech/mycollege.git

I tried many solutions to solve the issue below, but I couldn't find a proper solution. Finally, I tried adding the file to Git using the following method:

git add -A
git commit -m "setup project"
git push origin master
....

And Solve my issue, you can try this if you solve your problem.