How to make changes to an existing project on Github Pages?

Question

git

I successfully created a page on github pages, but I had to make changes in local files. I added the modified files under version control and committed without problems. However, when it comes to git push, after entering the username and password, the following error occurs:

error: failed to push some refs to 'https://github.com/username/username.github.io.git'
hint: Updates were rejected because the tip of your current branch is behind
hint: its remote counterpart. Integrate the remote changes (e.g.
hint: 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.

Answer 1

the error says that the version on the git is newer than on the local computer.
you need to merge the changes and then push.