Bug MissingMethodException error on build [2020.2.0b6]

I get the following error when building:

(0,0): error System.MissingMethodException: Attempted to access a missing method.

 

Please post the

editor.log

file after the build failed.
https://docs.unity3d.com/Manual/LogFiles.html

 

Aight. here is the logfile

 

Here is the callstack of the error:

Code (CSharp):

1. (0,0): error System.MissingMethodException: Attempted to access a missing method.
2.   at (wrapper managed-to-native) Unity.Collections.LowLevel.Unsafe.UnsafeUtility.MemCpy(void*,void*,long)
3.   at Unity.Properties.CodeGen.Utility.GetSanitizedName (System.String name, System.String suffix) [0x000ad] in <e58299e14b8f46809d7305f52240951e>:0
4.   at Unity.Properties.CodeGen.Blocks.PropertyBag.Generate (Unity.Properties.CodeGen.Context context, Mono.Cecil.TypeReference containerType) [0x0002b] in <e58299e14b8f46809d7305f52240951e>:0
5.   at Unity.Properties.CodeGen.PostProcessor.Generate (Mono.Cecil.AssemblyDefinition assembly, System.Collections.Generic.IEnumerable`1[T] defines) [0x00039] in <e58299e14b8f46809d7305f52240951e>:0
6.   at Unity.Properties.CodeGen.PostProcessor.Process (Unity.CompilationPipeline.Common.ILPostProcessing.ICompiledAssembly compiledAssembly) [0x0001b] in <e58299e14b8f46809d7305f52240951e>:0
7.   at ILPostProcessorRunner.RunILPostProcessors (NamedILPostProcessorWrapper[] ilpostProcessors) [0x00073] in <04671920fa244b7da7c644c861e4f88f>:0
8.   at ILPostProcessorRunner.Main (System.String[] args) [0x000be] in <04671920fa244b7da7c644c861e4f88f>:0

I don't know if it's IL2CPP or DOTS related to be honest. Have you tried to update all those DOTS related packages to the latest version?

If it still reproduces with the latest packages, I think submitting a bug-report with a project to reproduce the error and posting the case number here, would be from advantage.
https://unity3d.com/unity/qa/bug-reporting

 

It seems to be a problem with the havok package. After removing it building works fine.

 

Hi @HanYol0 ,

I see in Editor.log that you are using pretty old versions of Havok (0.2.2) and Unity Physics (0.3.2) packages. Could you please try with latest?
I just tried running a scene with il2cpp on 2020.2.0b6 editor and it worked fine with Unity and Havok simulation.

Please let me know if you face any more problems and sorry for delayed response.

 

Reporting for future googlers: Trying to make (any) build in 2020LTS with Unity Physics 0.3.2 definitely causes the exception in the original post. Upgrading to 0.6.3 fixed it for me.