package twiki 1:4.1.2-3.1ubuntu1 failed to install/upgrade: subprocess post-removal script returned error exit status 1

[Joe]

Binary package hint: twiki

 * Starting web server apache2 apache2: Syntax error on line 185 of /etc/apache2/apache2.conf: Syntax error on line 1 of /etc/apache2/mods-enabled/xmlrpc.load: Cannot load /usr/lib/apache2/modules/mod_xmlrpc.so into server: /usr/lib/apache2/modules/mod_xmlrpc.so: undefined symbol: xmlrpc_registry_new

ProblemType: Package
Architecture: i386
Date: Mon Jul 14 19:12:20 2008
DistroRelease: Ubuntu 8.04
ErrorMessage: subprocess post-removal script returned error exit status 1
NonfreeKernelModules: ath_hal
Package: twiki 1:4.1.2-3.1ubuntu1
PackageArchitecture: all
SourcePackage: twiki
Title: package twiki 1:4.1.2-3.1ubuntu1 failed to install/upgrade: subprocess post-removal script returned error exit status 1
Uname: Linux 2.6.24-19-generic i686

[Pascal De Vuyst (pascal-devuyst)]

That's because twiki 1:4.1.2-3.1ubuntu1 fails to install:

Setting up twiki (1:4.1.2-3.1ubuntu1) ...
Adding password for user TWikiGuest
reloading apache2 config
apache2: Syntax error on line 185 of /etc/apache2/apache2.conf: Syntax error on line 1 of /etc/apache2/mods-enabled/xmlrpc.load: Cannot load /usr/lib/apache2/modules/mod_xmlrpc.so into server: /usr/lib/apache2/modules/mod_xmlrpc.so: undefined symbol: xmlrpc_registry_new
   ...fail!
dpkg: error processing twiki (--configure):
 subprocess post-installation script returned error exit status 1