How to correctly update Gtk# in Xamarin?

Question

I need to update Gtk# to version 2.99.3 in Xamarin Studio. A few days ago I tried to update it using .msi installer , but after that I got some issues . And after deleting old version of Gtk#(before this I already installed new version) my Xamarin failed to start. Log:

Xamarin Studio failed to start. Some of the assemblies required to run Xamarin Studio(for example gtk-sharp) may not be properly installed in the GAC. System.IO.FileNotFoundException: ...... "glib-sharp, Version=2.12.0.0, Culture=neutral...."

So I have just one question: how to update Gtk# to the specific version in Xamarin?

Answer 1

Xamarin Studio is not compatible with Gtk# version 2.99.3

Gtk# version 2.99.3 is a community produced wrapper for GTK3. Xamarin Studio requires GTK2.

Xamarin have publicly announced that they will not be moving to GTK3.