Link Assemblies Task Failed

smarthardik10

THIS IS THE ERROR :-

Severity Code Description Project File Line Suppression State
Error The "LinkAssemblies" task failed unexpectedly.
System.IO.FileNotFoundException: Could not load assembly 'App25, Version=0.0.0.0, Culture=neutral, PublicKeyToken='. Perhaps it doesn't exist in the Mono for Android profile?
File name: 'App25.dll'
at Java.Interop.Tools.Cecil.DirectoryAssemblyResolver.Resolve(AssemblyNameReference reference, ReaderParameters parameters)
at Java.Interop.Tools.Cecil.DirectoryAssemblyResolver.GetAssembly(String fileName)
at Xamarin.Android.Tasks.LinkAssemblies.Execute(DirectoryAssemblyResolver res)
at Xamarin.Android.Tasks.LinkAssemblies.Execute()
at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
at Microsoft.Build.BackEnd.TaskBuilder.d__26.MoveNext() App25

yelinzh

Try the follows:

1. Right click on the Android project, and select Properies in the menu.
2. In the project properties, go to Application.
3. Set the Compile using Android version: (Target Framework) to the latest installed platform.
4. In the project properties, go to Android Manifest.
5. Set the Minimum Android version to API level 19 or higher, and the Target Android version to the latest installed platform you chose in (3).

Tutorial: https://docs.microsoft.com/en-us/xamarin/xamarin-forms/troubleshooting/questions/android-linkassemblies-error

smarthardik10

no,unfortunately it didn't work.

yelinzh

Have you tried to delete the files of bin and obj folder and then restart the project?

smarthardik10

I did try as you said,but no success again.

BrendanZagaeski

Error The "LinkAssemblies" task failed unexpectedly.
System.IO.FileNotFoundException: Could not load assembly 'App25, Version=0.0.0.0, Culture=neutral, PublicKeyToken='. Perhaps it doesn't exist in the Mono for Android profile?
File name: 'App25.dll'

As a quick idea in case it might be helpful, usually when the name of the assembly ("App25" in this case) mentioned in this error is one of the projects in your solution, it means that the project (App25 in this case) did not build successfully, so to resolve this "Could not load assembly" error, you'll want to look for the other errors in the build output to find the reason why the App25 project did not build successfully. (It might be something as small as a missing ; at the end of a line in one of the .cs files in the App25 project, for example.)

(As one more little side note, this misleading "Could not load assembly" error that happens during the "LinkAssemblies" task should no longer happen starting with the current Xamarin.Android 9.4 preview version. So in that version and above, only the "real" error from the App25 project should appear, making it easier to track down the cause of the problem.)