Mono-INFO: DllImport attempting to load: 'libgtk-win32-2.0-0.dll'.
Mono-INFO: DllImport loading location: 'libgtk-win32-2.0-0.dll'.
Mono-INFO: DllImport error loading library: 'libgtk-win32-2.0-0.dll: cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading library: './libgtk-win32-2.0-0.dll'.
Mono-INFO: DllImport error loading library './libgtk-win32-2.0-0.dll: cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading: 'libgtk-win32-2.0-0.dll'.
Mono-INFO: DllImport error loading library 'libgtk-win32-2.0-0.dll: cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading location: 'libgtk-win32-2.0-0'.
Mono-INFO: DllImport error loading library: 'libgtk-win32-2.0-0: cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading library: './libgtk-win32-2.0-0'.
Mono-INFO: DllImport error loading library './libgtk-win32-2.0-0: cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading: 'libgtk-win32-2.0-0'.
Mono-INFO: DllImport error loading library 'libgtk-win32-2.0-0: cannot open shared object file: No such file or directory'.

(tester.exe:4537): Mono-WARNING **: DllImport unable to load library 'libgtk-win32-2.0-0: cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport attempting to load: 'libgtk-win32-2.0-0.dll'.
Mono-INFO: DllImport loading location: 'libgtk-win32-2.0-0.dll'.
Mono-INFO: DllImport error loading library: 'libgtk-win32-2.0-0.dll: cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading library: './libgtk-win32-2.0-0.dll'.
Mono-INFO: DllImport error loading library './libgtk-win32-2.0-0.dll: cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading: 'libgtk-win32-2.0-0.dll'.
Mono-INFO: DllImport error loading library 'libgtk-win32-2.0-0.dll: cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading location: 'libgtk-win32-2.0-0'.
Mono-INFO: DllImport error loading library: 'libgtk-win32-2.0-0: cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading library: './libgtk-win32-2.0-0'.
Mono-INFO: DllImport error loading library './libgtk-win32-2.0-0: cannot open shared object file: No such file or directory'.
Mono-INFO: DllImport loading: 'libgtk-win32-2.0-0'.
Mono-INFO: DllImport error loading library 'libgtk-win32-2.0-0: cannot open shared object file: No such file or directory'.

(tester.exe:4537): Mono-WARNING **: DllImport unable to load library 'libgtk-win32-2.0-0: cannot open shared object file: No such file or directory'.

Unhandled Exception: System.DllNotFoundException: libgtk-win32-2.0-0.dll
  at (wrapper managed-to-native) Gtk.Application:gtk_init (int&,intptr&)
  at Gtk.Application.Init () [0x00000] 
  at tester.MainClass.Main (System.String[] args) [0x00000]