System.TypeLoadException when using ListView

[Petrushka]

Hi!

After upgrade to Telerik UI for Xamarin R1 2021.

Content pages that use RadListView will throw System.TypeLoadException error:

03-01 09:37:41.966 D/Mono    ( 1041): Assembly Ref addref Telerik.XamarinForms.DataControls[0xe92528e0] -> System.Core[0xd1e0b8a0]: 11
03-01 09:37:41.966 W/        ( 1041): Could not load signature of Telerik.XamarinForms.DataControlsRenderer.Android.ListViewAccessibilityDelegateCompat:OnInitializeAccessibilityNodeInfo due to: Could not resolve type with token 01000150 from typeref (expected class 'AndroidX.Core.View.Accessibiity.AccessibilityNodeInfoCompat' in assembly 'Xamarin.AndroidX.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null') assembly:Xamarin.AndroidX.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null type:AndroidX.Core.View.Accessibiity.AccessibilityNodeInfoCompat member:(null)
**System.TypeLoadException:** 'VTable setup of type Telerik.XamarinForms.DataControlsRenderer.Android.ListViewAccessibilityDelegateCompat failed'


**System.TypeLoadException:** 'VTable setup of type Telerik.XamarinForms.DataControlsRenderer.Android.ListViewAccessibilityDelegateCompat failed'

**System.NotImplementedException:** 'The method or operation is not implemented.'

03-01 09:58:44.813 W/        ( 2622): exception inside UnhandledException handler: (null) assembly:mscorlib.dll type:NotImplementedException member:(null)
03-01 09:58:44.813 E/mono-rt ( 2622): [ERROR] FATAL UNHANDLED EXCEPTION: System.TypeLoadException: VTable setup of type Telerik.XamarinForms.DataControlsRenderer.Android.ListViewAccessibilityDelegateCompat failed
03-01 09:58:44.813 E/mono-rt ( 2622):   at (wrapper dynamic-method) Android.Runtime.DynamicMethodNameCounter.42(intptr,intptr,intptr,intptr,intptr)
03-01 09:58:44.813 E/mono-rt ( 2622):   at (wrapper native-to-managed) Android.Runtime.DynamicMethodNameCounter.42(intptr,intptr,intptr,intptr,intptr)

 

My app will crash after that exception thrown. How to fix this problem?

Thanks!

 

 

[Didi]

Hi Petrushka,

Thank you for the provided stack trace.

I will need more information on your setup and how the issue could be reproduced.

Could you please open a support ticket and attach a sample project to it, where the issue can be reproduced? I am asking about this as in this way we can research the case further. Once we are aware of the exact setup you have and reproduce the issue, we will be able to investigate it further and provide more information on the matter. 

Also, add steps to reproduce the exception and on which Android device/emulator version the issue occurs.

Thank you for the understanding and I look forward to your reply.

Regards,
Didi
Progress Telerik

[Petrushka]

 

Here is a sample project:

I create a new project, add required AndroidX Packages, and put a RadListView in AboutPage.

It will failed soon when I start debug the app.

 

[Petrushka]

 

Here is a sample project:  

I create a new project, add required AndroidX Packages, and put a RadListView in AboutPage.

It will failed soon when I start debug the app.

 

[Didi]

Hello Petrushka,

I have opened a support ticket on your behalf - ticket id: 1509178. Please attach the sample project there and add the information on which Android device/emulator version the issue can be reproduced. Note that I have removed the links from this forum thread in both replies. I suggest you open a support ticket and attach the projects there. In order to reduce the file size - delete bin and obj folders from all projects. 

Regards,
Didi
Progress Telerik

[Petrushka]

Hi!
Thanks for your assist.

After downgrade the Xamarin.Google.Android.Material package to 1.2.1.1 version, the exception still occurred with my project.

So I am revert back to Xamarin.Forms 4.8.0.1821, Telerik UI for Xamarin R3 2020, downgrade Xamarin.Google.Android.Material to 1.0.15, target to Android 9 API 28.

This makes my project build and runs as expected again.

I will try upgrade to Xamarin.Forms 5.0, AndroidX, Telerik for Xamarin packages, target to Android 10 a few weeks later.

Thanks!

[Ahmed]

 I am face the same issue using

1- Xamarin.Forms :- 5.0.0.2012

2- Telerik Verison :- 2020.3.1207.1

[Ahmed]

 I am face the same issue using
1- Xamarin.Forms :- 5.0.0.2012
2- Telerik Verison :- 2020.3.1207.1

[Didi]

Hi all, 

We have this issue logged in our feedback portal: https://feedback.telerik.com/xamarin/1509502-androidx-error-listviewaccessibilitydelegatecompat-failed 

The dev team is researching the case. There will be an update inside the feedback item once we have more information to share. It seems the issue happens when Xamarin.AndroidX.Core version to 1.3.2.2 is used. 

Workaround:

1 option Downgrade the Xamarin.AndroidX.Core version to 1.3.2.1. I have reproduced the issue when  Xamarin.AndroidX.Core version 1.3.2.2 is used.

2 option If you are using Xamarin.Google.Android.Material version 1.3.0.1-> downgrade to Xamarin.Google.Android.Material version 1.2.1.1. it will automatically downgrade the versions of the AndroidX packages it depends on. 

Regards,
Didi
Progress Telerik

[Cristi]

Hi, I have this error and I found the faulty package, maybe this can help.

As you see, there it seems to be a misspelled class name (Accessibiity) in :

Could not resolve type with token 01000150 from typeref (expected class 'AndroidX.Core.View.Accessibiity.AccessibilityNodeInfoCompat'...)

In my case reverting Xamarin.AndroidX.MediaRouter package from 1.2.2.1 to a previous version (1.2.1) fixed my problem.

Regards,

Cristi

[Didi]

Hi Chris,

Yes, you are right. The issue is a misspelled class name Accessibiity, which Xamatin.Forms fixed to Accessibility, but this is a breaking change, as now the namespace is different. Here is the link https://github.com/xamarin/AndroidX/commit/b64834625ba231d89afb9c89bdae007a7258eca0#diff-64d65877e1b5eb3de016e98941c7020707c9b317946c38a0e63972fab41e1984

The issue happens in Xamarin.AndroidX.Core package version 1.3.2.2 or higher. Also if you use another Xamarin.AndroidX package which depends on Xamarin.AndroidX.Core 1.3.2.2 version or higher.

Solution:

Downgrade the Xamarin.AndroidX.Core version to 1.3.2.1

Downgrade the versions of the other AndroidX packages which previously depends on Xamarin.AndroidX.Core 1.3.2.2 or higher.

In your case downgrading the Xamarin.AndroidX.MediaRouter fixed the problem as it depends on Xamarin.AndroidX.Media which depends on the Xamarin.AndroidX.Core. -> Downgrading the Xamarin.AndroidX.MeriaRouter downgrades the version of the packages it depends on - AndroidX.Media and AndroidX.Core

Regards,
Didi
Progress Telerik

[James]

Any news on this? We are now 4 versions behind.

[Didi]

We have released a lib last week which includes the fix for this issue. The LIB can be used for development purposes. We do not recommend using the lib in production as it is not fully tested. 
Here is more information on this: https://feedback.telerik.com/xamarin/1509502-errors-with-latest-versions-of-androidx

 

The official minor release is expected this week. The public item status will be updated accordingly. Please follow it so you will receive an email notification when there is an update. 

 

[Edward]

I downgraded my Android packages from 

    <PackageReference Include="Xamarin.AndroidX.Lifecycle.LiveData" Version="2.3.1" />
    <PackageReference Include="Xamarin.AndroidX.Browser" Version="1.3.0.5" />
    <PackageReference Include="Xamarin.AndroidX.Legacy.Support.V4" Version="1.0.0.7" />
    <PackageReference Include="Xamarin.AndroidX.MediaRouter" Version="1.2.2.1" />
   <PackageReference Include="Xamarin.AndroidX.Palette" Version="1.0.0.1" />

To 

    <PackageReference Include="Xamarin.AndroidX.Lifecycle.LiveData" Version="2.2.0.1" />
    <PackageReference Include="Xamarin.AndroidX.Browser" Version="1.2.0.1" />
    <PackageReference Include="Xamarin.AndroidX.Legacy.Support.V4" Version="1.0.0.1" />
    <PackageReference Include="Xamarin.AndroidX.MediaRouter" Version="1.1.0.1" />

And the issue is gone. The version of Telerik that I´m using is 2021.1.407.20.

Is there a plan to support the latest version of AndroidX versions?

 

Thanks

[Didi]

Hi Edward,

We intentionally haven't compiled against the latest Xamarin.AndroidX.Core yet as this will change the minimum required version for all our customers and all will be forced to upgrade, they will have no choice.

In addition, for the time being, Xamarin.Forms itself does not reference by default the latest AndroidX packages - Xamarin.AndroidX.Core 1.3.2.1 is still used (as a dependency of Xamarin.Google.Android.Material 1.2.1.1). 

We're keeping an eye on the situation and as soon as Xamarin team update the minimum requirements, we'll react accordingly.

Regards,
Didi
Progress Telerik

[Oleg]

I did versions downgrade and now app crashes at MainActivity:: base.OnCreate( bundle );

with error 'Failed resolution of: Landroidx/core/view/OnReceiveContentViewBehavior;'

With latest version it is running, but crashes on specific element.

[Didi]

Hi Oleg,

Could you please provide more details on when the exception occurs and what are the steps to reproduce the issue?
Also please elaborate more on this: With latest version it is running, but crashes on specific element. -> which latest version -> Telerik UI for Xamarin or AndroidX?

[Oleg]

I added image to my first post.
Error occurs with downgraded version.
Latest version I mean: Xamarin.AndroidX.Core and Xamarin.AndroidX.Legacy.Support.V4

[Didi]

I am not sure I understood the exact setup you have. As you have mentioned this: Error occurs with downgraded version.
Latest version I mean: Xamarin.AndroidX.Core and Xamarin.AndroidX.Legacy.Support.V4. The error discussed in this forum thread is related to an issue with versions of AndroidX.Core 1.3.2.2 or higher. So you will need to downgrade the AndroidX core version and other AndroidX packages versions that depend on this version. 

If this is not the case, please open a support ticket and attach a sample repro project to it. So I can research the case in details.

[Didi]

Hello,

We have released a new official minor release version of Telerik UI for Xamarin 2021.2.728.1. This version contains the fix for the AndroidX.Core. https://feedback.telerik.com/xamarin/1509502-errors-with-latest-versions-of-androidx status of this bug report is Completed.

Telerik UI for Xamarin v 2021.2.728.1 is built against Xamarin.Forms 5.0.0.2083. So you will need to update the Xamarin.Forms version to 5.0.0.2083.

Regards,
Didi
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