same problem here, remuco-rhythmbox worked fine on natty, now broken on oneiric. I renamed the file to .plugin as indicated above by driesfeys, also renamed the section. You can then see the plugin, but not enable it because checking its box will crash it. I get this on the stdout:
$ rhythmbox [ stuff about my media keys which is not relevant] [ upon clicking the checkbox, this appears: ] /usr/lib/python2.7/dist-packages/gobject/constants.py:24: Warning: g_boxed_type_register_static: assertion `g_type_from_name (name) == 0' failed import gobject._gobject Traceback (most recent call last): File "/usr/lib/rhythmbox/plugins/remuco3/remythm.py", line 30, in <module> import rb, rhythmdb ImportError: No module named rhythmdb (rhythmbox:3541): libpeas-WARNING **: Error loading plugin 'remythm' I provided a full debug log, but it basically contains the same info. ** Attachment added: "rhythmbox --debug, then trying to enable remuco plugin" https://bugs.launchpad.net/ubuntu/+source/rhythmbox/+bug/878352/+attachment/2704113/+files/rhythmbox-remuco-debug-log -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to rhythmbox in Ubuntu. https://bugs.launchpad.net/bugs/878352 Title: 3rd Party Plugins Ignored Status in “rhythmbox” package in Ubuntu: Incomplete Bug description: For some reason, after upgrading to Oneiric, Rhythmbox no longer shows any third party plugins. I have tried putting them in many locations. Both of these plugins are ignored. Remuco is even in the Ubuntu repos and does not work. Rhythmweb/Rhythmote Remuco ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: rhythmbox 2.90.1~20110908-0ubuntu1 ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4 Uname: Linux 3.0.0-12-generic x86_64 NonfreeKernelModules: wl ApportVersion: 1.23-0ubuntu3 Architecture: amd64 Date: Wed Oct 19 12:06:50 2011 EcryptfsInUse: Yes InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007) ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: rhythmbox UpgradeStatus: Upgraded to oneiric on 2011-09-28 (21 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rhythmbox/+bug/878352/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp