[appng] Running shell script + git push origin appng-1.18.x To git@github.com:appNG/appng.git ! [rejected] appng-1.18.x -> appng-1.18.x (non-fast-forward) error: failed to push some refs to 'git@github.com:appNG/appng.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.