Hi,
when I try to start tomboy with Leap 42.3, I get following error. This error
occures also with Leap 15.0 and 15.1. 

Unhandled Exception:
System.TypeInitializationException: The type initializer for 'Tomboy.Logger'
threw an exception. ---> System.TypeInitializationException: The type
initializer for 'Tomboy.Services' threw an exception. --->
System.TypeInitializationException: The type initializer for
'Tomboy.GnomeApplication' threw an exception. --->
System.MissingMethodException: Method 'string.Trim' not found.
  at Tomboy.GnomeApplication..cctor () [0x00015] in
<75b20737e8ad4037acd60e9b9e866f06>:0 
   --- End of inner exception stack trace ---
  at (wrapper managed-to-native)
System.Object:__icall_wrapper_mono_generic_class_init (intptr)
  at Tomboy.GnomeFactory.CreateNativeApplication () [0x00001] in
<75b20737e8ad4037acd60e9b9e866f06>:0 
  at Tomboy.Services..cctor () [0x0000b] in
<75b20737e8ad4037acd60e9b9e866f06>:0 
   --- End of inner exception stack trace ---
  at Tomboy.FileLogger..ctor () [0x00012] in
<75b20737e8ad4037acd60e9b9e866f06>:0 
  at Tomboy.Logger..cctor () [0x00006] in <75b20737e8ad4037acd60e9b9e866f06>:0 
   --- End of inner exception stack trace ---
  at Tomboy.Tomboy.Main (System.String[] args) [0x00090] in
<75b20737e8ad4037acd60e9b9e866f06>:0 
[ERROR] FATAL UNHANDLED EXCEPTION: System.TypeInitializationException: The type
initializer for 'Tomboy.Logger' threw an exception. --->
System.TypeInitializationException: The type initializer for 'Tomboy.Services'
threw an exception. ---> System.TypeInitializationException: The type
initializer for 'Tomboy.GnomeApplication' threw an exception. --->
System.MissingMethodException: Method 'string.Trim' not found.
  at Tomboy.GnomeApplication..cctor () [0x00015] in
<75b20737e8ad4037acd60e9b9e866f06>:0 
   --- End of inner exception stack trace ---
  at (wrapper managed-to-native)
System.Object:__icall_wrapper_mono_generic_class_init (intptr)
  at Tomboy.GnomeFactory.CreateNativeApplication () [0x00001] in
<75b20737e8ad4037acd60e9b9e866f06>:0 
  at Tomboy.Services..cctor () [0x0000b] in
<75b20737e8ad4037acd60e9b9e866f06>:0 
   --- End of inner exception stack trace ---
  at Tomboy.FileLogger..ctor () [0x00012] in
<75b20737e8ad4037acd60e9b9e866f06>:0 
  at Tomboy.Logger..cctor () [0x00006] in <75b20737e8ad4037acd60e9b9e866f06>:0 
   --- End of inner exception stack trace ---
  at Tomboy.Tomboy.Main (System.String[] args) [0x00090] in
<75b20737e8ad4037acd60e9b9e866f06>:0 

What is the issue? Is it a bug?

Brgds
Richard