I Did install current GTK# 2.12.10 - it does not help. Mono.Cecil is part of MonoDevelop and does not depend on GTK#. Am 09.07.2010 18:09, schrieb Sergio Unny: > Seems you have not installed GTK# for .NET 2.12.9-2? You may find it at > the same place where you got MonoDevelop. > - sergiou