Public bug reported:
Binary package hint: gnome-panel
In an Ubuntu Classic Desktop session on a Natty i386 system with gnome-
panel package version 1:2.32.1-0ubuntu4, right-clicking in most places
on the panel and clicking Help fails, raising a message box with the
title "Error" and the message:
Could not display help document 'user-guide'
The specified location is not supported
This occurs when right-clicking the panel and clicking Help in any of the
following places:
(1) the top panel, in blank space (it should bring up help topic "Using the
Panels")
(2) the top panel, on a menu (it should bring up the help topic "Using the Main
Menubar")
(3) the bottom panel, on the Show Desktop button (it should bring up the help
topic "Show Desktop Button")
(4) the bottom panel, in blank space (it should bring up the help topic "Using
the Panels")
(5) the bottom panel, in the desktop switcher (it should bring up the help
topic "Workspaces")
When I right-click the bottom panel on the trash can icon and click
Help, I get a similar, but different, error. Instead of loading help
topic "Panel Trash Manual" in yelp, a message box with no title is
raised, with the message:
There was an error displaying help: The specified location is not
supported
The two different error message boxes (for the trash can, and for
everything else) are also of different styles. I will attach images of
each. Besides the information provided by the images, they also differ
in that the message box for everything except the trash can appears in
the taskbar, and the message box for the trash can doesn't.
Note that clicking System > Help and Support or clicking System > About
Ubuntu both still work fine, as does loading the help browser manually
by running the command "yelp".
I have tried quitting the GNOME Panel ("killall gnome-panel") and re-
running it in a terminal -- when the errors occur, no output is printed
to the command line.
I have tried, and failed, to reproduce this bug on a Maverick i386
system.
I am unsure if I am reporting this bug in the correct package. However,
the error messages seem to belong to gnome-panel. Yelp is not running
when the error messages are displayed. Perhaps I should instead be
reporting this bug in yelp (2.30.2-0ubuntu1), ubuntu-docs (10.10.4), or
gnome-user-guide (2.30.0+git20100403ubuntu2).
This bug report is superficially similar to a bug report on Red Hat
Bugzilla (https://bugzilla.redhat.com/show_bug.cgi?id=595650) --
however, these are NOT the same bug, as in that bug, the problem was
that gnome-panel 'Failed to execute child process "gnome-help" (No such
file or directory)'. That is not the case here, and gnome-help exists in
/usr/bin on my system. I mention that bug report only to reduce
confusion, since it comes up in a Google search for the error message in
this bug.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: gnome-panel 1:2.32.1-0ubuntu4
ProcVersionSignature: Ubuntu 2.6.37-11.25-generic 2.6.37-rc7
Uname: Linux 2.6.37-11-generic i686
Architecture: i386
Date: Tue Dec 28 23:28:03 2010
ExecutablePath: /usr/bin/gnome-panel
GConfNonDefault:
/apps/panel/general/applet_id_list=[fast_user_switch_screen0,trashapplet_screen0,workspace_switcher_screen0,window_list_screen0,show_desktop_button_screen0,indicator_applet_screen0,notification_area_screen0,clock_screen0]
/apps/panel/general/object_id_list=[browser_launcher_screen0,menu_bar_screen0,object_0]
/apps/panel/general/toplevel_id_list=[bottom_panel_screen0,top_panel_screen0]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20101202)
ProcEnviron:
LANGUAGE=en_US:en
LANG=en_US.UTF-8
LC_MESSAGES=en_US.utf8
SHELL=/bin/bash
SourcePackage: gnome-panel
XsessionErrors:
(yelp:1966): Gtk-CRITICAL **: IA__gtk_tool_button_new: assertion `icon_widget
== NULL || GTK_IS_MISC (icon_widget)' failed
(yelp:1966): Gtk-CRITICAL **: IA__gtk_toolbar_insert: assertion
`GTK_IS_TOOL_ITEM (item)' failed
(yelp:1966): Gtk-CRITICAL **: IA__gtk_tool_button_new: assertion `icon_widget
== NULL || GTK_IS_MISC (icon_widget)' failed
(yelp:1966): Gtk-CRITICAL **: IA__gtk_toolbar_insert: assertion
`GTK_IS_TOOL_ITEM (item)' failed
** Affects: gnome-panel (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 natty
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https://bugs.launchpad.net/bugs/695260
Title:
gnome-panel help cannot be displayed
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