Mono.Linker.MarkException: Error processing method: 'System.Void AndroidX.RecyclerView.Widget.RecyclerView/LayoutManager

Question

I am trying to debug my Xamarin project. Framework and all packages are up to date. In iOS it works, but in Android NOT. How can I solve this problem:

Mono.Linker.MarkException: Error processing method: 'System.Void AndroidX.RecyclerView.Widget.RecyclerView/LayoutManager::n_OnInitializeAccessibilityNodeInfo_Landroidx_recyclerview_widget_RecyclerView_Recycler_Landroidx_recyclerview_widget_RecyclerView_State_Landroidx_core_view_accessibility_AccessibilityNodeInfoCompat_(System.IntPtr,System.IntPtr,System.IntPtr,System.IntPtr,System.IntPtr)' in assembly: 'Xamarin.AndroidX.RecyclerView.dll' ---> Mono.Cecil.ResolutionException: Failed to resolve AndroidX.Core.View.Accessibiity.AccessibilityNodeInfoCompat
   at Mono.Linker.Steps.MarkStep.HandleUnresolvedType(TypeReference reference)
   at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference)
   at MonoDroid.Tuner.MonoDroidMarkStep.MarkType(TypeReference reference)
   at Mono.Linker.Steps.MarkStep.MarkMethodBody(MethodBody body)
   at Mono.Linker.Steps.MarkStep.ProcessMethod(MethodDefinition method)
   at Mono.Linker.Steps.MarkStep.ProcessQueue()
   --- End of inner exception stack trace ---
   at Mono.Linker.Steps.MarkStep.ProcessQueue()
   at Mono.Linker.Steps.MarkStep.ProcessPrimaryQueue()
   at Mono.Linker.Steps.MarkStep.Process()
   at Mono.Linker.Steps.MarkStep.Process(LinkContext context)
   at MonoDroid.Tuner.MonoDroidMarkStep.Process(LinkContext context)
   at Mono.Linker.Pipeline.ProcessStep(LinkContext context, IStep step)
   at Mono.Linker.Pipeline.Process(LinkContext context)
   at MonoDroid.Tuner.Linker.Process(LinkerOptions options, ILogger logger, LinkContext& context)
   at Xamarin.Android.Tasks.LinkAssemblies.Execute(DirectoryAssemblyResolver res)
   at Xamarin.Android.Tasks.LinkAssemblies.RunTask()
   at Xamarin.Android.Tasks.AndroidTask.Execute()

Here is a similar issue that maybe can help you https://stackoverflow.com/questions/62132157/mono-linker-markexception-error-processing-method-system-void-plugin-localnot — Lucas Zhang, Mar 17 '21 at 13:37

score 76 · Accepted Answer · answered Mar 18 '21 at 10:53

76

I encountered this same problem after updating Visual Studio to 16.9.2 and updating the Android SDK.

The simple solution was to update the 'Xamarin.AndroidX.RecyclerView' Nuget package in the package manager. I Updated to the latest version (v1.1.0.8).

answered Mar 18 '21 at 10:53

Zee

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15

Thank you for your hint. My solution was to install 'Xamarin.AndroidX.RecyclerView' in the first place. – tschan Apr 30 '21 at 08:10
3

Same here. I didn't have that package installed. Installed it and it fixed the error. – Brien King Jun 03 '21 at 03:24
Indeed! Thanks! – Andrii Jul 17 '21 at 22:11
Off course for me it doesn't work!!! Never ever works in Xamarin... – user1034912 Sep 10 '21 at 06:33
@user1034912 perhaps you need one of the other packages explicitly installed per https://stackoverflow.com/a/67092611/1399272 - `Xamarin.AndroidX.Core`, `Xamarin.AndroidX.CustomView`, `Xamarin.AndroidX.Preference`, `Xamarin.AndroidX.RecyclerView`? – Bondolin Nov 08 '21 at 21:32

score 18 · Answer 2 · answered May 13 '21 at 10:43

18

Same problem but i did not have 'Xamarin.AndroidX.RecyclerView' installed.

Solution: install in android project 'Xamarin.AndroidX.RecyclerView' and all work fine

answered May 13 '21 at 10:43

Ricko..

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This is worked for me, I have also updated all the nugget packages in the solution. – Khandakar Rashed Hassan Sep 21 '21 at 19:09
it worked for me also – Abul Hasan Dec 23 '21 at 04:56
This was my case and also worked for me +1 – revobtz Feb 04 '22 at 18:17
This worked for me, more or less. I had to install an earlier version of Xamarin.Androidx.RecyclerView, rather than the latest stable – Alan Nov 10 '22 at 05:36

score 8 · Answer 3 · answered Apr 14 '21 at 13:19

Zee's answer is correct. here is the explanation which can solve other similar issues. https://github.com/xamarin/AndroidX/issues/283

jpobst commented on 1 Mar When resolving transitive dependencies, NuGet unfortunately picks the lowest dependency that meets the criteria. This means that fixes made to transitive dependencies often don't get picked up.

In this case the issue is the namespace misspelling (AndroidX.Core.View.Accessibiity) was corrected, however one (or more) of the packages that uses types from that namespace are not being updated.

You will need to make sure you are using the latest versions of these packages, which may require adding an explicit package reference to them:

Xamarin.AndroidX.Core
Xamarin.AndroidX.CustomView
Xamarin.AndroidX.Preference
Xamarin.AndroidX.RecyclerView

score 1 · Answer 4 · answered Apr 10 '21 at 06:48

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I had this error. In my case, it was finally solved by removing the Xamarin.AndroidX.Legacy.Support.V4 NuGet, which was not needed anyway. I think the auto AndroidX migration put it in.

answered Apr 10 '21 at 06:48

BillF

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score 1 · Answer 5 · answered Feb 10 '23 at 16:15

In my case, I didn't have to install any NuGet packages explicitly. I did remove Xamarin.AndroidX.AppCompat as it wasn't needed anymore, but what I think the real fix is: update Xamarin.Forms to be newer, greater than 5.0.0.2012.

That pulls in all sorts of newer versions of the AndroidX dependencies which seemed to resolve this problem.

score 0 · Answer 6 · answered Apr 12 '21 at 03:30

0

To me, the problem was with VS 16.9.3 and the release build, and the solution was to remove the dependency on Xamarin.AndroidX.AppCompat.AppCompatResources.

answered Apr 12 '21 at 03:30

ZZZ

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score 0 · Answer 7 · answered May 29 '21 at 20:05

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Same issue occurred for me today after I updated all my nuget packages, the issue was resolved when I cleaned and rebuilt the solution.

answered May 29 '21 at 20:05

Jamshaid K.

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ironically, the same worked for me. – Nii Dec 04 '21 at 16:15

score 0 · Answer 8 · answered May 30 '21 at 10:12

0

For me the problem started when I upgraded to Xamarin.Firebase.Messaging v 121.1.0 - reverting to v121.0.1 resolved the problem - at least temporarily

answered May 30 '21 at 10:12

Adrian Frielinghaus

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I agree it's just a neverendling endless problems with Xamarin... and as usual none of the solutions here work – user1034912 Sep 10 '21 at 11:02

score 0 · Answer 9 · edited Jun 01 '21 at 07:58

0

My solution is installing: Xamarin.Google.Android.Material via Nuget

edited Jun 01 '21 at 07:58

Yunnosch

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answered Jun 01 '21 at 07:37

Patrick Kasteel

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score 0 · Answer 10 · answered Aug 29 '22 at 01:54

0

Update Visual Studio to the latest version and remove the Xamarin.AndroidX.RecyclerView nugget if you have it installed.

answered Aug 29 '22 at 01:54

Ehsan Nozari

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score 0 · Answer 11 · answered Oct 19 '22 at 01:40

I solved this probles just updating the Android SDK version in: Android Project > Properties > Aplication > Compile Using Android Version and updating all the Xamarin dependendies with Nuget Manager. My last Android version was 11(S) and now is 12(R).

I hope this can help someone!

Anastasia · Answer 12 · 2023-02-07T16:05:31.093

When resolving transitive dependencies, NuGet, unfortunately, picks the lowest dependency that meets the criteria. This means that fixes made to transitive dependencies often don't get picked up.

In this case, the issue is the namespace misspelling (AndroidX.Core.View.Accessibiity) was corrected, however, one (or more) of the packages that use types from that namespace are not being updated.

I solved this problem just by adding a few Nugets - Xamarin.AndroidX.Preference and Xamarin.AndroidX.Legacy.Preference.V14

Full list of versions:

<PackageReference Update="Xamarin.AndroidX.Biometric" Version="1.1.0.6" />
<PackageReference Update="Xamarin.AndroidX.CardView" Version="1.0.0.11" />
<PackageReference Update="Xamarin.AndroidX.ConstraintLayout" Version="2.1.1.2"  />
<PackageReference Update="Xamarin.AndroidX.Core" Version="1.6.0.3" />
<PackageReference Update="Xamarin.AndroidX.ExifInterface" Version="1.3.3.2" />
<PackageReference Update="Xamarin.AndroidX.Legacy.Preference.V14" Version="1.0.0.10" />
<PackageReference Update="Xamarin.AndroidX.Legacy.Support.V4" Version="1.0.0.10" />
<PackageReference Update="Xamarin.AndroidX.Lifecycle.LiveData" Version="2.3.1.3" />
<PackageReference Update="Xamarin.AndroidX.Migration" Version="1.0.8" />
<PackageReference Update="Xamarin.AndroidX.Media" Version="1.4.3" />
<PackageReference Update="Xamarin.AndroidX.Preference" Version="1.1.1.11" />
<PackageReference Update="Xamarin.AndroidX.RecyclerView" Version="1.2.1.3" />

I hope this can help someone!

Mono.Linker.MarkException: Error processing method: 'System.Void AndroidX.RecyclerView.Widget.RecyclerView/LayoutManager

12 Answers12