It wasn't, but it's just started happening to me (monodevelop 0.11.1ubuntu3 - edgy). There was an upgrade to mono a few days ago, maybe that's caused it.
-- System.Reflection.TargetInvocationException: on startup https://launchpad.net/bugs/39479 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
