MTOUCH: error MT0034 Xamarin.iOS and Catel

Question

I am getting this error when I try to compile my Xamarin.iOS app. I am referencing Catel.MVVM and Catel.Fody.

Any idea what to do?

MTOUCH: error MT0034: Cannot include both 'monotouch.dll' and 'Xamarin.iOS.dll' in the same Xamarin.iOS project - 'Xamarin.iOS.dll' is referenced explicitly, while 'monotouch.dll' is referenced by 'Catel.MVVM, Version=4.4.0.0, Culture=neutral, PublicKeyToken=null'.

Try to remove the Xamarin.iOS.dll reference from your project. — Gerald Versluis, Dec 22 '15 at 19:29

score 3 · Accepted Answer · answered Dec 22 '15 at 19:39

3

One of your project parts uses the UnifiedAPI (Xamarin.iOS.dll) and another one uses the Classic API (monotouch.dll). They can not be both part of the project.

You goal should be to use the UnifiedAPI/ Xamarin.iOS.dll instead of the old monotouch assembly because with the new one you are able to get your app in the store. Xamarin Studio is able to convert your project to the UnifiedAPI. I am not sure but take a look under Project > "Convert to UnifiedAPI" or something like that.

answered Dec 22 '15 at 19:39

tequila slammer

2,821
1
18
25

Will do, sounds promising. – pjdupreez Dec 23 '15 at 06:53
It would seem that the project is already using Unified API... is it not the case that the Catel.MVVM should not use monotouch.dll? – pjdupreez Dec 23 '15 at 08:39
I took a look at the source on github and it looks like Catel.MVVM.Xamarin.iOS is not updated to the UnifiedAPI. I looked at the Release 4.3.0 branch which seems to be the latest. – tequila slammer Dec 24 '15 at 08:41
Ah. That could explain it. Thanks. I will contact the developer of Catel and add to this question when I have more info. – pjdupreez Dec 29 '15 at 19:27
Would be glad if you mark my answser as the one that fits, if it was helpful to you. – tequila slammer Dec 29 '15 at 23:44

MTOUCH: error MT0034 Xamarin.iOS and Catel

1 Answers1