Bug Fatal error in Unity CIL Linker Mono.Linker.MarkException: Error processing method:

I want to build selected test in WebGL but I got the following erros:

Code (CSharp):

1. Exception: Failed running C:\Program Files\Unity\Hub\Editor\2020.3.38f1\Editor\Data\il2cpp\build/deploy/netcoreapp3.1/UnityLinker.exe @"C:/Users/SHINTA VR/Documents/Fork/cosmize-experience-unity/Temp/StagingArea/Data/Managed/response.rsp"
2.  
3. stdout:
4. Fatal error in Unity CIL Linker
5. Mono.Linker.MarkException: Error processing method: 'System.Boolean Cosmize.Test.PlayTest.Member.EventRoomTests/<>c::<LoadScene>b__4_2()' in assembly: 'EventRoomTestsMember.dll'
6. ---> Mono.Cecil.ResolutionException: Failed to resolve System.Collections.Generic.List`1<Cosmize.Data.EventData> Cosmize.Feature.Event.EventManager::eventDataList
7.    at Mono.Linker.Steps.MarkStep.HandleUnresolvedField(FieldReference reference)
8.    at Mono.Linker.Steps.MarkStep.MarkInstruction(Instruction instruction)
9.    at Mono.Linker.Steps.MarkStep.MarkMethodBody(MethodBody body)
10.    at Unity.Linker.Steps.UnityMarkStep.MarkMethodBody(MethodBody body)
11.    at Mono.Linker.Steps.MarkStep.ProcessMethod(MethodDefinition method)
12.    at Unity.Linker.Steps.UnityMarkStep.ProcessMethod(MethodDefinition method)
13.    at Mono.Linker.Steps.MarkStep.ProcessQueue()
14.    --- End of inner exception stack trace ---
15.    at Mono.Linker.Steps.MarkStep.ProcessQueue()
16.    at Mono.Linker.Steps.MarkStep.ProcessPrimaryQueue()
17.    at Mono.Linker.Steps.MarkStep.Process()
18.    at Mono.Linker.Steps.MarkStep.Process(LinkContext context)
19.    at Unity.Linker.Steps.UnityMarkStep.Process(LinkContext context)
20.    at Mono.Linker.Pipeline.ProcessStep(LinkContext context, IStep step)
21.    at Unity.Linker.UnityPipeline.ProcessStep(LinkContext context, IStep step)
22.    at Mono.Linker.Pipeline.Process(LinkContext context)
23.    at Unity.Linker.UnityDriver.UnityRun(ILogger customLogger)
24.    at Unity.Linker.UnityDriver.RunDriverWithoutErrorHandling(ILogger customLogger)
25.    at Unity.Linker.UnityDriver.RunDriver()
26. stderr:
27.  
28. UnityEditorInternal.Runner.RunProgram (UnityEditor.Utils.Program p, System.String exe, System.String args, System.String workingDirectory, UnityEditor.Scripting.Compilers.CompilerOutputParserBase parser) (at <2e00be109d124bb98c380f10ba0e3cd4>:0)
29. UnityEditorInternal.Runner.RunNetCoreProgram (System.String exe, System.String args, System.String workingDirectory, UnityEditor.Scripting.Compilers.CompilerOutputParserBase parser, System.Action`1[T] setupStartInfo) (at <2e00be109d124bb98c380f10ba0e3cd4>:0)
30. UnityEditorInternal.AssemblyStripper.RunAssemblyLinker (System.Collections.Generic.IEnumerable`1[T] args, System.String& out, System.String& err, System.String linkerPath, System.String workingDirectory) (at <2e00be109d124bb98c380f10ba0e3cd4>:0)
31. UnityEditorInternal.AssemblyStripper.StripAssembliesTo (System.String outputFolder, System.String& output, System.String& error, System.Collections.Generic.IEnumerable`1[T] linkXmlFiles, UnityEditorInternal.UnityLinkerRunInformation runInformation) (at <2e00be109d124bb98c380f10ba0e3cd4>:0)
32. UnityEditorInternal.AssemblyStripper.RunAssemblyStripper (UnityEditorInternal.UnityLinkerRunInformation runInformation) (at <2e00be109d124bb98c380f10ba0e3cd4>:0)
33. UnityEditorInternal.AssemblyStripper.StripAssemblies (System.String managedAssemblyFolderPath, UnityEditorInternal.BaseUnityLinkerPlatformProvider unityLinkerPlatformProvider, UnityEditorInternal.IIl2CppPlatformProvider il2cppPlatformProvider, UnityEditor.RuntimeClassRegistry rcr, UnityEditor.ManagedStrippingLevel managedStrippingLevel) (at <2e00be109d124bb98c380f10ba0e3cd4>:0)
34. UnityEditorInternal.IL2CPPBuilder.Run () (at <2e00be109d124bb98c380f10ba0e3cd4>:0)
35. UnityEditorInternal.IL2CPPUtils.RunIl2Cpp (System.String stagingAreaData, UnityEditorInternal.IIl2CppPlatformProvider platformProvider, System.Action`1[T] modifyOutputBeforeCompile, UnityEditor.RuntimeClassRegistry runtimeClassRegistry) (at <2e00be109d124bb98c380f10ba0e3cd4>:0)
36. UnityEditor.WebGL.WebGlBuildPostprocessor.CompileBuild (UnityEditor.Modules.BuildPostProcessArgs args) (at /Users/bokken/buildslave/unity/build/PlatformDependent/WebGL/Extensions/Unity.WebGL.extensions/BuildPostprocessor.cs:365)
37. UnityEditor.WebGL.WebGlBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args) (at /Users/bokken/buildslave/unity/build/PlatformDependent/WebGL/Extensions/Unity.WebGL.extensions/BuildPostprocessor.cs:913)
38. UnityEditor.Modules.DefaultBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args, UnityEditor.BuildProperties& outProperties) (at <2e00be109d124bb98c380f10ba0e3cd4>:0)
39. UnityEditor.PostprocessBuildPlayer.Postprocess (UnityEditor.BuildTargetGroup targetGroup, UnityEditor.BuildTarget target, System.String installPath, System.String companyName, System.String productName, System.Int32 width, System.Int32 height, UnityEditor.BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry, UnityEditor.Build.Reporting.BuildReport report) (at <2e00be109d124bb98c380f10ba0e3cd4>:0)
40. UnityEditor.EditorApplication:Internal_CallUpdateFunctions()

Code (CSharp):

1. TestLaunchFailedException: Player build failed
2. UnityEditor.TestTools.TestRunner.PlayerLauncher.Run () (at Library/PackageCache/com.unity.test-framework@1.1.31/UnityEditor.TestRunner/TestLaunchers/PlayerLauncher.cs:93)
3. UnityEditor.TestTools.TestRunner.TestRun.Tasks.LegacyPlayerRunTask+<Execute>d__0.MoveNext () (at Library/PackageCache/com.unity.test-framework@1.1.31/UnityEditor.TestRunner/TestRun/Tasks/LegacyPlayerRunTask.cs:14)
4. UnityEditor.TestTools.TestRunner.TestRun.TestJobRunner.ExecuteStep () (at Library/PackageCache/com.unity.test-framework@1.1.31/UnityEditor.TestRunner/TestRun/TestJobRunner.cs:124)
5. UnityEditor.EditorApplication:Internal_CallUpdateFunctions()

What's causes this errors? I'm using Unity 2020.3.38f1 and UTF 1.1.31

 

Sounds like a missing dependency. Does it build in the editor or playmode?

 

It's playmode. And we found that the obfuscator plugin was the culprit