Burst Fails When Compiling from within a Package?

I am trying to port another developer's library into a project. When I build their test project using the same properties/unity version (2020.3.30f1) it works fine. When I bring it over to my project as a package and asmdef file it gives the following exception on build:

Burst.Compiler.IL.Helpers.MethodDecoderException: Unable to decode `AprilTag.ImageConverter, XXX Platform - MRTK, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::BurstConvert(UnityEngine.Color32*, UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null|System.Byte*, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089|System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089|System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089|System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089)` ---> Burst.Compiler.IL.Helpers.MethodDecoderException: Unexpected char `P` while decoding function name, expecting `::` instead of `Platform - MRTK, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::BurstConvert(UnityEngine.Color32*, UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null|System.Byte*, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089|System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089|System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089|System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089)

It seems to think the function name is "AprilTag.ImageConverter, XXX Platform - MRTK..."

Any ideas how to prevent that?

Their project uses burst 1.6.5 and this one uses 1.6.6

 

Removing the spaces fixed it. Cheers!

 

I get this error:
BuildFailedException: Burst compiler (1.6.6) failed running

stdout:
Overriding backend due to platform constraints : 'burst-llvm-10'
An unexpected exception occurred:
stderr:
Burst.Compiler.IL.Helpers.MethodDecoderException: Unable to decode `Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[????+PostUpdatePhysicsJob, MagicaCloth, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(????+PostUpdatePhysicsJob&, MagicaCloth, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null|System.IntPtr, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089|System.IntPtr, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089|Unity.Jobs.LowLevel.Unsafe.JobRanges&, UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null|System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089)` ---> Burst.Compiler.IL.Helpers.MethodDecoderException: Unexpected char `?` while decoding identifier `????+PostUpdatePhysicsJob, MagicaCloth, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(????+PostUpdatePhysicsJob&, MagicaCloth, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null|System.IntPtr, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089|System.IntPtr, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089|Unity.Jobs.LowLevel.Unsafe.JobRanges&, UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null|System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089)`
at Burst.Compiler.IL.Helpers.CecilInterop+MethodParser.DecodeTypeName () [0x00038] in <ed7d93ab72ae4d469fc9027b31698d75>:0
at Burst.Compiler.IL.Helpers.CecilInterop+MethodParser.DecodeType () [0x00000] in <ed7d93ab72ae4d469fc9027b31698d75>:0
at Burst.Compiler.IL.Helpers.CecilInterop+MethodParser.DecodeGenericType (System.String typeName) [0x00054] in <ed7d93ab72ae4d469fc9027b31698d75>:0
at Burst.Compiler.IL.Helpers.CecilInterop+MethodParser.DecodeType () [0x00027] in <ed7d93ab72ae4d469fc9027b31698d75>:0
at Burst.Compiler.IL.Helpers.CecilInterop+MethodParser.DecodeMethod () [0x00006] in <ed7d93ab72ae4d469fc9027b31698d75>:0
at Burst.Compiler.IL.Helpers.CecilInterop.DecodeMethodFromString (System.String fullMethodName) [0x00017] in <ed7d93ab72ae4d469fc9027b31698d75>:0
--- End of inner exception stack trace ---
at Burst.Bcl.BclApp.CompileAndLink (System.Collections.Generic.List`1[T] libraryCompilationRequests) [0x001a0] in <bb46234c1fc843108523ff783f680f0a>:0
at Burst.Bcl.Program.BuildTheThing (Burst.Bcl.BclOptions options, System.Diagnostics.Stopwatch& individualTimer) [0x00262] in <bb46234c1fc843108523ff783f680f0a>:0
at Burst.Bcl.Program.Main (System.String[] args) [0x0029d] in <bb46234c1fc843108523ff783f680f0a>:0
Please help me fix this.

 

Thank for support. I use Obfuscator for encrypt and this encrypt plugin Magica Cloth. I add MagicaCloth to ignore and build not error