i found this http://bugzilla.gnome.org/show_bug.cgi?id=462796 to fix the warning it works
-- GStreamer Warning when starting gnomeradio https://bugs.launchpad.net/bugs/155855 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
