Xamarin updating c1 nugets

Posted by: s.van.der.veek on 29 July 2019, 9:25 pm EST

  • Posted 29 July 2019, 9:25 pm EST


    I am using C1 inside our xamarin.forms application and am currently using C1 nugets (android.core, android.calendar, forms.core and forms.calander) version: 3.4 with Xamarin.Forms version: 4.1. Today I decided to update C1 to the latest version (4.0) and rebuilt my application but this resulted in a error which I am unable to get rid of.

    The error:
    Can not resolve reference: `Xamarin.Android.Support.SwipeRefreshLayout`, referenced by `C1.Android.Core`. Please add a NuGet package or assembly reference for `Xamarin.Android.Support.SwipeRefreshLayout`, or remove the reference to `C1.Android.Core`.

    I have tried adding the 'Xamarin.Android.Support.SwipeRefreshLayout' nuget and also adding a reference to 'Xamarin.Android.Support.SwipeRefreshLayout' inside 'references'. Unfortunately neither action has solved this error.

    I was hoping to get some help from an expert with a possible solution.

    Gr. Sjoerd

  • Replied 31 July 2019, 3:53 pm EST

    Hi Gr.Sjoerd

    This error occurs if "Compile using Android version: (Target Framework)" of Android project is set Android 8.0 (Oreo)/Android 8.1 (Oreo).
    However, project can be build properly if this version is changed to Android 9.0 (Pie) and versions of 'Xamarin.Android.Support.xxxx" to

    Please let us know if you face any difficulty

  • Replied 31 July 2019, 7:08 pm EST


    I have tried changing the target framework from 8.0 to 9.0 and made sure that all my xamarin.android.support libraries are version (these were already up-to-date).

    The same error is still occurring.
  • Marked as Answer

    Replied 4 August 2019, 5:05 pm EST


    We are sorry to let you know that the issue is not reproducible at our end after setting the Xamarin.Forms android Target Framework to Android 9.

    Please try the following steps
    • Remove the reference of "Xamarin.Android.Support.SwipeRefreshLayout" from
    • Set the Xamarin.Forms Android Target Framework to Android 9.
    • Remove all the c1 nuget packages from nuget.
    • Clean your project.
    • Add references to to C1 nuget packages.
    • Try rebuilding your application.

    Please let us know if you still face any difficulty

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