I checked this again after updating my system. This no longer is an issue. I can start Software Center from the Unity Launcher.
** Changed in: software-center (Ubuntu) Status: Incomplete => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/850801 Title: Unable to start software-center GUI from the Unity Launcher To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-center/+bug/850801/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs