hint: Updates were rejected because the tip of your current branch is behind‌‌hint: its remote counterpart. Merge the remote changes (e.g. 'git pull')‌‌hint: before pushing again.‌‌hint: See the 'Note about fast-forwards' in 'git push --help' for details.

Solution ( Force push ):
‌‌'root#>  git push -u origin master -f '