Can not add project to CI in gitlab 8.1.3

I am trying to setup the CI deployment on gitlab for days. I found that gitlab-ci had been integrated into gitlab after 8.0. But I can’t find my projects in CI page, and can’t press the button to add them to CI.

My server is ubuntu 14.04.3 LTS trusty. The latest version of gitlab omnibus package and CE docker both failed. Maybe the older version will work for me?

If anyone has the same problem, please give me some hints.

Since 8.1 the CI builds are located at and not