gistfile1.txt

System.NullReferenceException: Object reference not set to an instance of an object
  at coreimage.AppDelegate.Demo (System.Func`1 makeDemo) [0x00061] in /Users/Admin_Mac/Desktop/monotouch-samples-master/CoreImage/AppDelegate.cs:314
  at coreimage.AppDelegate+<AddVersionRoot>c__AnonStorey3+<AddVersionRoot>c__AnonStorey4.<>m__6 (MonoTouch.Dialog.RootElement x) [0x00017] in /Users/Admin_Mac/Desktop/monotouch-samples-master/CoreImage/AppDelegate.cs:62
  at MonoTouch.Dialog.RootElement.MakeViewController () [0x0000b] in /Developer/MonoTouch/Source/MonoTouch.Dialog/MonoTouch.Dialog/Elements.cs:2839
  at MonoTouch.Dialog.RootElement.Selected (MonoTouch.Dialog.DialogViewController dvc, MonoTouch.UIKit.UITableView tableView, MonoTouch.Foundation.NSIndexPath path) [0x00008] in /Developer/MonoTouch/Source/MonoTouch.Dialog/MonoTouch.Dialog/Elements.cs:2849
  at MonoTouch.Dialog.DialogViewController.Selected (MonoTouch.Foundation.NSIndexPath indexPath) [0x00029] in /Developer/MonoTouch/Source/MonoTouch.Dialog/MonoTouch.Dialog/DialogViewController.cs:523
  at MonoTouch.Dialog.DialogViewController+Source.RowSelected (MonoTouch.UIKit.UITableView tableView, MonoTouch.Foundation.NSIndexPath indexPath) [0x00019] in /Developer/MonoTouch/Source/MonoTouch.Dialog/MonoTouch.Dialog/DialogViewController.cs:369
  at at (wrapper managed-to-native) MonoTouch.UIKit.UIApplication:UIApplicationMain (int,string[],intptr,intptr)
  at MonoTouch.UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0004c] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIApplication.cs:38
  at coreimage.Application.Main (System.String[] args) [0x00012] in /Users/Admin_Mac/Desktop/monotouch-samples-master/CoreImage/Main.cs:18