Fatal error in Unity CIL Linker 2017.2.0f3

We are seeing a similar issue - building to Oculus Quest. Was there any solution to this found!?

Failed running C:\Unity\2019.3.3f1\Editor\Data\il2cpp\build/deploy/net471/UnityLinker.exe -out=E:/Humulo_VR/Temp/StagingArea/assets/bin/Data/Managed/tempStrip -x=E:/Humulo_VR/Temp/StagingArea/assets/bin/Data/Managed/../platform_native_link.xml -x=C:/Users/alien/AppData/Local/Temp/tmp7fa90b09.tmp -x=E:/Humulo_VR/Temp/StagingArea/assets/bin/Data/Managed/TypesInScenes.xml -d=E:/Humulo_VR/Temp/StagingArea/assets/bin/Data/Managed --include-unity-root-assembly=E:/Humulo_VR/Temp/StagingArea/assets/bin/Data/Managed/Assembly-CSharp-firstpass.dll --include-unity-root-assembly=E:/Humulo_VR/Temp/StagingArea/assets/bin/Data/Managed/Assembly-CSharp.dll --include-unity-root-assembly=E:/Humulo_VR/Temp/StagingArea/assets/bin/Data/Managed/UnityEngine.UI.dll --include-unity-root-assembly=E:/Humulo_VR/Temp/StagingArea/assets/bin/Data/Managed/Oculus.VR.dll --dotnetruntime=il2cpp --dotnetprofile=unityaot --use-editor-options --include-directory=E:/Humulo_VR/Temp/StagingArea/assets/bin/Data/Managed --rule-set=Conservative --editor-data-file=E:/Humulo_VR/Temp/StagingArea/assets/bin/Data/Managed/EditorToUnityLinkerData.json --platform=Android --enable-engine-module-stripping --engine-stripping-flag=EnableUnityConnect --engine-stripping-flag=EnableCrashReporting --engine-stripping-flag=EnableVR --engine-modules-asset-file=C:/Unity/2019.3.3f1/Editor/Data/PlaybackEngines/AndroidPlayer/Whitelists/../modules.asset

stdout:
Fatal error in Unity CIL Linker
System.InvalidOperationException: No action for the assembly TinCan, Version=1.3.0.0, Culture=neutral, PublicKeyToken=7e2d97554f738180 defined
at Mono.Linker.AnnotationStore.GetAction(AssemblyDefinition assembly)
at Mono.Linker.Steps.MarkStep.IsFullyPreserved(TypeDefinition type)
at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference)
at Mono.Linker.Steps.MarkStep.MarkField(FieldReference reference)
at Unity.Linker.Steps.Marking.MonoBehaviourMarking.MarkNeededFields(TypeDefinition type)
at Unity.Linker.Steps.Marking.MonoBehaviourMarking.DoAdditionalTypeProcessing(TypeDefinition type)
at Unity.Linker.Steps.UnityMarkStep.DoAdditionalTypeProcessing(TypeDefinition type)
at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference)
at Mono.Linker.Steps.MarkStep.InitializeType(TypeDefinition type)
at Mono.Linker.Steps.MarkStep.InitializeAssembly(AssemblyDefinition assembly)
at Mono.Linker.Steps.MarkStep.Initialize()
at Mono.Linker.Steps.MarkStep.Process(LinkContext context)
at Unity.Linker.Steps.UnityMarkStep.Process(LinkContext context)
at Mono.Linker.Pipeline.ProcessStep(LinkContext context, IStep step)
at Unity.Linker.UnityPipeline.ProcessStep(LinkContext context, IStep step)
at Mono.Linker.Pipeline.Process(LinkContext context)
at Unity.Linker.UnityDriver.Run()
at Unity.Linker.UnityDriver.RunDriverWithoutErrorHandling()
at Unity.Linker.UnityDriver.RunDriver()
stderr:

UnityEngine.Debug:LogError(Object)
UnityEditorInternal.Runner:RunProgram(Program, String, String, String, CompilerOutputParserBase)
UnityEditorInternal.Runner:RunManagedProgram(String, String, String, CompilerOutputParserBase, Action`1)
UnityEditorInternal.AssemblyStripper:RunAssemblyLinker(IEnumerable`1, String&, String&, String, String)
UnityEditorInternal.AssemblyStripper:StripAssembliesTo(String, String&, String&, IEnumerable`1, UnityLinkerRunInformation)
UnityEditorInternal.AssemblyStripper:RunAssemblyStripper(UnityLinkerRunInformation)
UnityEditorInternal.AssemblyStripper:StripAssemblies(String, BaseUnityLinkerPlatformProvider, IIl2CppPlatformProvider, RuntimeClassRegistry, ManagedStrippingLevel)
UnityEditorInternal.IL2CPPBuilder:Run()
UnityEditorInternal.IL2CPPUtils:RunIl2Cpp(String, String, IIl2CppPlatformProvider, Action`1, RuntimeClassRegistry)
UnityEditor.BuildPlayerWindow:BuildPlayerAndRun()

 

Hello,

I think we may have something relevant too :

stdout:
Fatal error in Unity CIL Linker
System.ArgumentException: Member ‘System.Void System.Runtime.CompilerServices.NullableAttribute::.ctor(System.Byte)’ is declared in another module and needs to be imported


Or can this be fixed with updating some linking ?

 

Hi, I also have the same problem when building for iOS on my computer (Unity 2019.4.1):
Fatal error in Unity CIL Linker System.ArgumentException: Member 'System.Void System.Runtime.CompilerServices.NullableAttribute::.ctor(System.Byte)' is declared in another module and needs to be imported

It is related to the usage of Remote Config 1.2.3.
With Remote Config 1.0.9, the error is gone.

 

Sorry but I can't submit my main project, and I cannot reproduce the problem on a simple sample project.
There might be a conflict with another package. I don't know.
In case it helps, here are attached my packages:

I don't have the problem with Remote Config 1.0.9, but If I update to any higher version, the compilation error is triggered when building for iOS.
Downgrading back to 1.0.9 removes the compilation error.

 

Yes, it is an official package, as far as I know.
They have a dedicated forum:
https://forum.unity.com/forums/unity-remote-config.371/

And here is the documentation :
https://docs.unity3d.com/Packages/com.unity.remote-config@latest

According to the package manager, the higher versions are not Unity 2019.4 verified (only 1.0.9 is), so this might be the problem (although I cannot reproduce it on a clean project)

Note that, even if I have the same error on my computer, the real problem might not be the exact same one as the one of the users in this post.

 

It seems that you are using Windows 7. And the problem is that you didn't install the latest .Net Framework.
I installed .Net Framework 4.8 on Windows 7 and then Unity build Android IL2CPP successfully.

Environments:

- Windows 7
- .Net Framework 4.8
- Unity 2018.4.25f1

 

I had a similar problem, turned out all I had to do was delete a comma out my project file...

https://www.reddit.com/r/Unity2D/comments/fc0tub/il2cpp_issues_for_android_project/

 

I've just encountered this error as well. And it turns out that Unity Remote Config is the cause in my case (tried with both 1.2.3 and 1.4.0 preview 1). Removing Unity Remote Config and successfully built Android APK.

macOS Catalina
Unity 2019.4.10f1
Unity Remote Config (1.2.3 / 1.4.0 preview 1)

 

I was experiencing the same error with or without Remote Config, setting the Managed Stripping Level from High to Medium was the solution for me.

 

Yes! Thanks.

 

I was facing this linker error when using Remote config with Managed Stripping Level High and it was working fine with Stripping Level Medium.
If want to use with managed Stripping Level High with Remote config then create link.xml file in Assets folder and paste these lines in link.xml to tell linker preserve this library.

Code (CSharp):

1. <linker>
2.   <assembly fullname="Newtonsoft.Json" ignoreIfMissing="1">
3.     <namespace fullname="System.Runtime.CompilerServices" preserve="all" />
4.   </assembly>
5. </linker>

 

This was a great tip to resolve it for me - I had nothing in my link.xml file. Deleting it did the trick - thanks!