ObjC-C# binding, native 'init' returns nil

pburgiopburgio Member
edited March 7 in Xamarin.iOS


I am extending the Xamarin. SoupChef example to implement my own Intent. I correctly generated the library following the example in SoupChef, but when I try to reference it in the app (I am using the SoupChef app), i receive the following error:

Could not initialize an instance of the type 'SoupChef.SendCommandIntent': the native 'init' method returned nil.
It is possible to ignore this condition by setting ObjCRuntime.Class.ThrowOnInitFailure to false.

I checked all the steps to generate the library, and including it in the original SoupChef.OrderSoupIntentBinding, including registering the intents in its Info.plist. But when it comes to using it, i get the error. Some code follows

// Order.cs
public OrderSoupIntent Intent
            *var myIntent = new SendCommandIntent(); // Only added this line!!!*
             var orderSoupIntent = new OrderSoupIntent();
             orderSoupIntent.Quantity = new NSNumber(Quantity);
             orderSoupIntent.Soup = new INObject(MenuItem.ItemNameKey, MenuItem.LocalizedString);

Exception is thrown here (file SendCommandIntent.g.cs)

[BindingImpl (BindingImplOptions.GeneratedCode | BindingImplOptions.Optimizable)]
[EditorBrowsable (EditorBrowsableState.Advanced)]
[Export ("init")]
public SendCommandIntent () : base (NSObjectFlag.Empty)
    IsDirectBinding = GetType ().Assembly == global::ApiDefinitions.Messaging.this_assembly;
    if (IsDirectBinding) {
HERE--> InitializeHandle (global::ApiDefinitions.Messaging.IntPtr_objc_msgSend (this.Handle, global::ObjCRuntime.Selector.GetHandle ("init")), "init");
    } else {
        InitializeHandle (global::ApiDefinitions.Messaging.IntPtr_objc_msgSendSuper (this.SuperHandle, global::ObjCRuntime.Selector.GetHandle ("init")), "init");


Can anyone help me please?



  • pburgiopburgio Member

    Hello I finally solved it. I forgot to update the Intent.intentdefinition file in the Binding project


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