upnp.cs(316,17): warning CS0114: `FileFind.UPnP.RootDevice.ToString()' hides inh
erited member `object.ToString()'. To make the current member override that impl
ementation, add the override keyword. Otherwise add the new keyword
C:\PROGRA~1\MONO-1~1.1\lib\mono\2.0\mscorlib.dll (Location of the symbol related
 to previous warning)
upnp.cs(44,11): error CS0117: `Gtk.TreeViewColumn' does not contain a definition
 for `Expand'
upnp.cs(52,60): error CS0117: `Gtk.Application' does not contain a definition fo
r `Invoke'

Unhandled Exception: Mono.CSharp.InternalErrorException: Internal error
  at Mono.CSharp.AnonymousMethodHost+AnonymousMethodHostInitializer.DoResolveInt
ernal (Mono.CSharp.EmitContext ec) [0x00000]
  at Mono.CSharp.ScopeInfo+ScopeInitializer.DoResolve (Mono.CSharp.EmitContext e
c) [0x00000]
  at Mono.CSharp.Expression.Resolve (Mono.CSharp.EmitContext ec, ResolveFlags fl
ags) [0x00000]
  at Mono.CSharp.Expression.Resolve (Mono.CSharp.EmitContext ec) [0x00000]
  at Mono.CSharp.ScopeInfo.GetScopeInitializer (Mono.CSharp.EmitContext ec) [0x0
0000]
  at Mono.CSharp.Block.EmitMeta (Mono.CSharp.EmitContext ec) [0x00000]
  at Mono.CSharp.ToplevelBlock.EmitMeta (Mono.CSharp.EmitContext ec) [0x00000]
  at Mono.CSharp.EmitContext.EmitMeta (Mono.CSharp.ToplevelBlock b) [0x00000]
  at Mono.CSharp.Constructor.Emit () [0x00000]
  at Mono.CSharp.TypeContainer.EmitConstructors () [0x00000]
  at Mono.CSharp.TypeContainer.EmitType () [0x00000]
  at Mono.CSharp.RootContext.EmitCode () [0x00000]
  at Mono.CSharp.Driver.MainDriver (System.String[] args) [0x00000]
  at Mono.CSharp.Driver.Main (System.String[] args) [0x00000]