git合并分支成功，但是push失败(remote: GitLab: You are not allowed to push code to protected branches on this project.)

紧急修复修改代码之后需要合并分支到master分支并push到线上，但是merge成功，push却失败了，报错如下：

➜  buzzextractor git:(master) git merge hotfix
Updating 4668fce..9527ae9
Fast-forward
 build_online_images.sh           | 2 +-
 extractor/buzz/lib/utils.py      | 2 +-
 extractor/conf/config.ini.bushu  | 2 +-
 extractor/conf/config.ini.online | 2 +-
 extractor/conf/config.ini.test   | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)
➜  buzzextractor git:(master) git status 
On branch master
Your branch is ahead of 'origin/master' by 1 commit.
  (use "git push" to publish your local commits)

nothing to commit, working tree clean
➜  buzzextractor git:(master) git push origin master
Total 0 (delta 0), reused 0 (delta 0)
remote: GitLab: You are not allowed to push code to protected branches on this project.
To http://code.admaster.co/social-base/buzzextractor.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'http://houcaiyun@code.admaster.co/social-base/buzzextractor.git'

经过分析查证发现是自己没有合并代码的权限导致的，所以接下来就是修改权限就可以了。

一般我们作为developer，是没有master权限的，只有master才有合并代码权限。

修改方法，联系管理员，打开gitlab ===> setting ===> 修改成员角色，就ok了（因为我不是管理员所以没有图截给大家啦。。。）

希望对你有帮助～