package libglade2.0-cil 2.12.10-2ubuntu4 failed to install/upgrade: Unterprozess installiertes post-removal-Skript gab den Fehlerwert 1 zurück

tried first to install mono-comlete. installation failed. tried to uninstall. failed also : mistake while processing libglade2.0-cil.
E: subprocess /usr/bin/dpgk returned an error code 1

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: libglade2.0-cil 2.12.10-2ubuntu4
ProcVersionSignature: Ubuntu 3.2.0-51.77-generic-pae 3.2.48
Uname: Linux 3.2.0-51-generic-pae i686
ApportVersion: 2.0.1-0ubuntu17.3
Architecture: i386
Date: Wed Jul 31 16:52:52 2013
DuplicateSignature: package:libglade2.0-cil:2.12.10-2ubuntu4:Unterprozess installiertes post-removal-Skript gab den Fehlerwert 1 zurück
ErrorMessage: Unterprozess installiertes post-removal-Skript gab den Fehlerwert 1 zurück
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120328)
MarkForUpload: True
SourcePackage: gtk-sharp2
Title: package libglade2.0-cil 2.12.10-2ubuntu4 failed to install/upgrade: Unterprozess installiertes post-removal-Skript gab den Fehlerwert 1 zurück
UpgradeStatus: No upgrade log present (probably fresh install)