last.fm displays plugin listener error on launch

[Eliah Kagan]

Binary package hint: lastfm

On my Maverick amd64 system, launching Last.fm (lastfm package version 1:1.5.4.26862+dfsg-5) causes a message box titled "Plugin Listener Error" to be displayed with the message:

Last.fm was unable to start accepting tracks from the plugin for your media player.
Details: Accept socket connection failed. Socket error: 4

A screenshot of the error is attached to this report. No external audio player is running when this error occurs, but I rarely have last.fm and another audio player running at the same time, so this is not evidence that the error cannot occur when an external player is running. Note that this error only happens occasionally; most of the time I launch Last.fm, there is no other audio player running, and this error message is not displayed. The audio player I use most often, audacious2, doesn't use the last.fm application to scrobble tracks to the last.fm service (it uses its own self-contained plugin). Dismissing the error message by clicking OK yields a functional Last.fm (at least for streaming tracks).

If this error message is not erroneous, then it seems to me that it ought to display a message that is more informative to people who are not familiar with the Last.fm player's internal workings.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: lastfm 1:1.5.4.26862+dfsg-5
ProcVersionSignature: Ubuntu 2.6.35-24.42-generic 2.6.35.8
Uname: Linux 2.6.35-24-generic x86_64
Architecture: amd64
Date: Sun Jan 9 17:14:34 2011
ExecutablePath: /usr/lib/lastfm/last.fm
InstallationMedia: Xubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100406)
ProcEnviron:
 LANGUAGE=en_US.utf8
 LANG=en_US.utf8
 LC_MESSAGES=en_US.utf8
 SHELL=/bin/bash
SourcePackage: lastfm
XsessionErrors:
 (polkit-gnome-authentication-agent-1:1741): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (update-notifier:1874): libgdu-WARNING **: Partition /org/freedesktop/UDisks/devices/sda6 is a logical partition but no extended partition exists
 (update-notifier:1874): libgdu-WARNING **: Partition /org/freedesktop/UDisks/devices/sda7 is a logical partition but no extended partition exists
 (update-notifier:1874): libgdu-WARNING **: Partition /org/freedesktop/UDisks/devices/sda5 is a logical partition but no extended partition exists

[Charlie Kravetz (cjkgeek)]

Thanks for reporting this bug and any supporting documentation. Since this bug has enough information provided for a developer to begin work, I'm going to mark it as confirmed and let them handle it from here. Thanks for taking the time to make Ubuntu better!

[soreau (soreau)]

I also experience this bug but only when binding XF86AudioPrev/Next to invoke lastfm using xbindkeys. When binding to Ctrl+Shift+M for example, it does not happen. Possible environment issue (?)