Question

I want to integrate the Aviary SDK Objective-C library into Monotouch project. I use ‘Monotouch Binding Project’ template for this.
I have built the DLL (Thanks smart people!) The project is compiled and run on the simulator.

However I can NOT show the main Aviary view and the following code

            this.afPhotoEditor = new AFPhotoEditorController(UIImage.FromFile("Images/site.jpg"));
            AFDelegate afDelegate = new AFDelegate(this);
            this.afPhotoEditor.Delegate = afDelegate;
            this.PresentModalViewController(this.afPhotoEditor, true);

returns the error:

Unhandled Exception: MonoTouch.Foundation.MonoTouchException: Objective-C exception thrown.  Name: NSInvalidArgumentException Reason: Cannot create an NSPersistentStoreCoordinator with a nil model
  at (wrapper managed-to-native) MonoTouch.ObjCRuntime.Messaging:void_objc_msgSendSuper_IntPtr_bool (intptr,intptr,intptr,bool)
  at MonoTouch.UIKit.UIViewController.PresentModalViewController (MonoTouch.UIKit.UIViewController modalViewController, Boolean animated) [0x00038] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIViewController.g.cs:261 
  at TestAviary.FirstViewController.<ViewDidLoad>m__0 (System.Object , System.EventArgs ) [0x00028] in /Users/mahmood1/Projects/AviaryBinding/TestAviary/FirstViewController.cs:61 
  at MonoTouch.UIKit.UIControlEventProxy.Activated () [0x00000] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIControl.cs:30 
  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) [0x00042] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIApplication.cs:29 
  at TestAviary.Application.Main (System.String[] args) [0x00000] in /Users/mahmood1/Projects/AviaryBinding/TestAviary/Main.cs:17 
[ERROR] FATAL UNHANDLED EXCEPTION: MonoTouch.Foundation.MonoTouchException: Objective-C exception thrown.  Name: NSInvalidArgumentException Reason: Cannot create an NSPersistentStoreCoordinator with a nil model
  at (wrapper managed-to-native) MonoTouch.ObjCRuntime.Messaging:void_objc_msgSendSuper_IntPtr_bool (intptr,intptr,intptr,bool)
  at MonoTouch.UIKit.UIViewController.PresentModalViewController (MonoTouch.UIKit.UIViewController modalViewController, Boolean animated) [0x00038] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIViewController.g.cs:261 
  at TestAviary.FirstViewController.<ViewDidLoad>m__0 (System.Object , System.EventArgs ) [0x00028] in /Users/mahmood1/Projects/AviaryBinding/TestAviary/FirstViewController.cs:61 
  at MonoTouch.UIKit.UIControlEventProxy.Activated () [0x00000] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIControl.cs:30 
  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) [0x00042] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIApplication.cs:29 
  at TestAviary.Application.Main (System.String[] args) [0x00000] in /Users/mahmood1/Projects/AviaryBinding/TestAviary/Main.cs:17 

It seems this error (Cannot create an NSPersistentStoreCoordinator with a nil model) is linked with resource bundle what Aviary SDK requires to add.

From Aviary iOS Setup Guide:

4. Copy resources

Make sure AviarySDKResources.bundle is included in your target's "Copy Bundle Resources" build phase.

So I added this bundle via ‘Add Existing Folder..’ menu item in MonoDevelop.

Sources are placed here >>> http://www.axifile.com/en/71EC96914A

It includes 2 projects:

• AviaryBinding (MonoTouch Binding Project)
• TestAviary

Thank you!

Answer 1

Per Jonathan.Peppers comment:

Adding most files like this to your project with Build Action of Content will solve the issue.