I get the same error message too, although I've compiled Amarok from git so can't complain. Not sure why exactly that appears and whether or not it's a problem. I was unable to play music files too, but then found that mp3 and wma were not playable while ogg files were. Then installed the required plugins and the files now play properly, but this error message still appears in debug output. So I don't think it's related to playing of music files.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/582470 Title: many error (bug?) messages on console -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
