package emerald 0.7.2-0ubuntu4 failed to install/upgrade:

[pietro]

Binary package hint: emerald

Failed to install/upgrade when upgrading from Ubuntu 9.10 to 10.04 using Alternate CD.

ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: emerald 0.7.2-0ubuntu4
ProcVersionSignature: Ubuntu 2.6.31-21.59-generic
Uname: Linux 2.6.31-21-generic i686
Architecture: i386
Date: Wed May 12 00:25:49 2010
ErrorMessage:
 ErrorMessage: subprocess installed post-installation script returned error exit status 2
LiveMediaBuild: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427.1)
SourcePackage: emerald
Title: package emerald 0.7.2-0ubuntu4 failed to install/upgrade:

[pietro (per-weisteen)]

Seems the unresolved Emerald upgrade will keep on nagging with error messages in Synaptic or apt-get.

I did a Google search for the Emerald issue and discovered that Emerald is not supported on 10.04. (see http://reformedmusings.wordpress.com/2010/05/08/emerald-no-longer-supported-by-compiz-in-ubuntu-lucid-10-04-lts/)

I solved (well partly, as the solution is to replace Emerald with GTK ) the issue by starting GTK as windows decorator and then dis some manual tricks to have Emerald removed:
gtk-window-decorator --replace &

I then tried a shell-based removal :
sudo apt-get remove emerald

Got some errors :
Removing emerald ...
update-alternatives: error: while reading /var/lib/dpkg/alternatives/x-window-decorator: Is a directory
dpkg: error processing emerald (--remove):
 subprocess installed pre-removal script returned error exit status 2
update-alternatives: error: while reading /var/lib/dpkg/alternatives/x-window-decorator: Is a directory
dpkg: error while cleaning up:
 subprocess installed post-installation script returned error exit status 2

I then removed the files in the /var/lib/dpkg/alternatives/x-window-decorator directory:
sudo rm -f /var/lib/dpkg/alternatives/x-window-decorator/entry.desktop
sudo rm -f /var/lib/dpkg/alternatives/x-window-decorator/flag.png

Removed the directory and created an empty file:
sudo rmdir /var/lib/dpkg/alternatives/x-window-decorator
sudo touch /var/lib/dpkg/alternatives/x-window-decorator

Rerunning apt-get:
sudo apt-get remove emerald

Removed Emerald successfully.

[Phillip Susi (psusi)]

This package has been removed from Ubuntu. Closing all related bugs.