Got it fixed. But I don't no what the problem was either. There's normally an apache Server running. I turned it off for setting up gitlab. Gitlab was running but something interfered anyways. Nginx and all other services could start but the described Problem came up.
Now I switched nginx to run on a different port so i can have apache and nginx running at the same time. With this configuration no errors occured. -- You received this message because you are subscribed to the Google Groups "GitLab" group. To unsubscribe from this group and stop receiving emails from it, send an email to gitlabhq+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/gitlabhq/652f2f22-9923-45e4-a220-9ddac9ca61e0%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.