iOS Question How to get ApplicationLabel and Version at runtime?

Sub AppName As String 
   Dim no As NativeObject
   no = no.Initialize("NSBundle").RunMethod("mainBundle", Null)
   Dim name As Object = no.RunMethod("objectForInfoDictionaryKey:", Array("CFBundleDisplayName"))
   Return name 
End Sub

Sub AppVersion As String
   Dim no As NativeObject
   no = no.Initialize("NSBundle").RunMethod("mainBundle", Null)
   Dim version As Object = no.RunMethod("objectForInfoDictionaryKey:", Array("CFBundleShortVersionString"))
   Return version 
End Sub

Error description: Current declaration does not match previous one.
Previous: {Type=Label,Rank=0, RemoteObject=True}
Current: {Type=Object,Rank=0, RemoteObject=True}
Error occurred on line: 34
Dim version As Object = no.RunMethod("objectForInfoDictionaryKey:", Array("CFBundleShortVersionString"))