We have multiple contributors that have access to a GitHub. For the other contributors, they are able to commit and push their changes successfully except me. This is my log when I try to push my changes to GitHub. Can someone please tell me what this means?
git -c diff.mnemonicprefix=false -c core.quotepath=false push -v --tags origin master:master
Pushing to https://github.com/NanoGurus4347/ftc_app.git
To https://github.com/NanoGurus4347/ftc_app.git
= [up to date] 15.10.06.002 -> 15.10.06.002
= [up to date] 15.11.04.001 -> 15.11.04.001
= [up to date] 16.01.04.001 -> 16.01.04.001
= [up to date] 16.02.09.001 -> 16.02.09.001
= [up to date] 16.03.30.001 -> 16.03.30.001
= [up to date] 16.07.08.001 -> 16.07.08.001
= [up to date] 16.07.08.002 -> 16.07.08.002
= [up to date] 20150918_001 -> 20150918_001
= [up to date] beta_20150803_001 -> beta_20150803_001
= [up to date] beta_20150803_002 -> beta_20150803_002
= [up to date] v1.77 -> v1.77
= [up to date] v2.2 -> v2.2
= [up to date] v2.2.1 -> v2.2.1
= [up to date] v2.35 -> v2.35
= [up to date] v2.4 -> v2.4
= [up to date] v3.0 -> v3.0
= [up to date] v3.1 -> v3.1
= [up to date] v3.1_fixed -> v3.1_fixed
= [up to date] v3.4 -> v3.4
= [up to date] v3.5 -> v3.5
= [up to date] v_15_05_15 -> v_15_05_15
= [up to date] v_15_05_15_002 -> v_15_05_15_002
= [up to date] v_15_05_15_003 -> v_15_05_15_003
= [up to date] v_15_05_15_004 -> v_15_05_15_004
= [up to date] v_15_05_15_005 -> v_15_05_15_005
= [up to date] v_15_05_15_006 -> v_15_05_15_006
= [up to date] v_15_05_15_v07 -> v_15_05_15_v07
! [rejected] master -> master (non-fast-forward)
error: failed to push some refs to 'https://github.com/NanoGurus4347/ftc_app.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.