Bug Burst internal compiler error: System.Exception: Error while generating hash for method references:

Burst version: 1.7.4

Spoiler: stack trace

Code (csharp):

1. Burst internal compiler error: System.Exception: Error while generating hash for method references:
2. Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[WRL.Main.Ground.Meshes.SdfSerdeJob+sdf_de_job, WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(!0&|System.IntPtr, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51|System.IntPtr, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51|Unity.Jobs.LowLevel.Unsafe.JobRanges&, UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null|System.Int32, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51)
3. Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[WRL.Main.Ground.Meshes.SurfaceNetsJob+gen_pn_job, WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(!0&|System.IntPtr, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51|System.IntPtr, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51|Unity.Jobs.LowLevel.Unsafe.JobRanges&, UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null|System.Int32, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51)
4. Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[WRL.Main.Ground.Meshes.SurfaceNetsJob+gen_quad_job, WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(!0&|System.IntPtr, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51|System.IntPtr, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51|Unity.Jobs.LowLevel.Unsafe.JobRanges&, UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null|System.Int32, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51)
5. Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[WRL.Main.Ground.Meshes.SdfSerdeJob+sdf_se_job, WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(!0&|System.IntPtr, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51|System.IntPtr, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51|Unity.Jobs.LowLevel.Unsafe.JobRanges&, UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null|System.Int32, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51) ---> System.Exception: Error while hashing 0x06000018 in WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null ---> System.Exception: Error while visiting referenced token 0x0A000027 in WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null ---> System.InvalidOperationException: Could not resolve method for member reference 0x0A000027 in assembly WRL.Main.Meshes ---> System.InvalidOperationException: Failed to resolve method with name hash '8b538d9e3637b92c0103addb7518a077' and signature hash 'b60db76fcdb9fecab1d00d232e8a110c' in type definition '2000009'
6.   at Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedTypeDefinition.TryGetMethodImpl (Burst.Compiler.IL.Helpers.Hash128& methodNameHash, Burst.Compiler.IL.Helpers.Hash128& methodSignatureHash, Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedMethodDefinition& result) [0x000f5] in <cd6e15731ab84616a776e8bda4f822ab>:0
7.   at Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedTypeDefinition.TryGetMethod (Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedMemberReference reference, Burst.Compiler.IL.Hashing.ILGenericContext genericContext, Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedMethodDefinition& result) [0x00053] in <cd6e15731ab84616a776e8bda4f822ab>:0
8.    --- End of inner exception stack trace ---
9.   at Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedTypeDefinition.TryGetMethod (Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedMemberReference reference, Burst.Compiler.IL.Hashing.ILGenericContext genericContext, Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedMethodDefinition& result) [0x0007c] in <cd6e15731ab84616a776e8bda4f822ab>:0
10.   at Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedMemberReference.TryResolveMethod (Burst.Compiler.IL.Hashing.ILGenericContext genericContext, Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedMethodDefinition& methodDefinition, Burst.Compiler.IL.Hashing.ILGenericContext& methodGenericContext) [0x0001b] in <cd6e15731ab84616a776e8bda4f822ab>:0
11.   at Burst.Compiler.IL.Hashing.CacheRuntime.ILFinalHashCalculator.VisitMemberReference (Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedMemberReference& memberReference, System.Nullable`1[T] constrainedType, Burst.Compiler.IL.Hashing.ILGenericContext genericContext, System.Collections.Immutable.ImmutableArray`1[Burst.Compiler.IL.Hashing.Types.ILType]& methodGenericParameters) [0x00046] in <cd6e15731ab84616a776e8bda4f822ab>:0
12.   at Burst.Compiler.IL.Hashing.CacheRuntime.ILFinalHashCalculator.HashMethodDefinition (Burst.Compiler.IL.Hashing.CacheRuntime.ToVisit& itemToVisit) [0x001a0] in <cd6e15731ab84616a776e8bda4f822ab>:0
13.    --- End of inner exception stack trace ---
14.   at Burst.Compiler.IL.Hashing.CacheRuntime.ILFinalHashCalculator.HashMethodDefinition (Burst.Compiler.IL.Hashing.CacheRuntime.ToVisit& itemToVisit) [0x00238] in <cd6e15731ab84616a776e8bda4f822ab>:0
15.   at Burst.Compiler.IL.Hashing.CacheRuntime.ILFinalHashCalculator.VisitItem (Burst.Compiler.IL.Hashing.CacheRuntime.ToVisit& itemToVisit) [0x000c7] in <cd6e15731ab84616a776e8bda4f822ab>:0
16.    --- End of inner exception stack trace ---
17.   at Burst.Compiler.IL.Hashing.CacheRuntime.ILFinalHashCalculator.VisitItem (Burst.Compiler.IL.Hashing.CacheRuntime.ToVisit& itemToVisit) [0x000ff] in <cd6e15731ab84616a776e8bda4f822ab>:0
18.   at Burst.Compiler.IL.Hashing.CacheRuntime.ILFinalHashCalculator.GetHashImpl () [0x00144] in <cd6e15731ab84616a776e8bda4f822ab>:0
19.   at Burst.Compiler.IL.Hashing.CacheRuntime.ILFinalHashCalculator.GetPerMethodHashes (Burst.Compiler.IL.MethodReferenceWithLinkName[] methodReferences, Burst.Compiler.IL.Hashing.CacheRuntime.HashCacheAssemblyStore assemblyStore, Burst.Compiler.IL.AssemblyLoader assemblyLoader, Burst.Compiler.IL.NativeCompilerOptions options, System.Action`2[T1,T2] onVisitItem) [0x00039] in <cd6e15731ab84616a776e8bda4f822ab>:0
20.    --- End of inner exception stack trace ---
21.   at Burst.Compiler.IL.Hashing.CacheRuntime.ILFinalHashCalculator.GetPerMethodHashes (Burst.Compiler.IL.MethodReferenceWithLinkName[] methodReferences, Burst.Compiler.IL.Hashing.CacheRuntime.HashCacheAssemblyStore assemblyStore, Burst.Compiler.IL.AssemblyLoader assemblyLoader, Burst.Compiler.IL.NativeCompilerOptions options, System.Action`2[T1,T2] onVisitItem) [0x000d2] in <cd6e15731ab84616a776e8bda4f822ab>:0
22.   at Burst.Compiler.IL.NativeCompiler.ComputePerMethodHash (System.ValueTuple`2[System.String,Burst.Compiler.IL.Helpers.Hash128][]& perMethodHashes, System.Collections.Generic.HashSet`1[Mono.Cecil.AssemblyNameReference]& referencedAssemblies) [0x00007] in <cd6e15731ab84616a776e8bda4f822ab>:0
23.   at Burst.Compiler.IL.Server.LibraryCompiler.CompileImpl (Burst.Compiler.IL.Server.CompileLibraryJob request, Burst.Compiler.IL.Server.CompilerServerJobExecutionContext executionContext, Burst.Compiler.IL.Server.Caching.LibraryCacheEntry cacheEntry, System.Collections.Generic.List`1[T] disassembly, System.Collections.Generic.List`1[T] diagnosticMessages, System.Collections.Generic.List`1[T] logMessages, System.Collections.Generic.HashSet`1[T] opCodesUsed, Burst.Compiler.IL.CompilerStatistics timings, Burst.Compiler.IL.Server.InterpretDelegate& interpretDelegate) [0x002c1] in <cd6e15731ab84616a776e8bda4f822ab>:0
24.   at Burst.Compiler.IL.Server.LibraryCompiler.Compile (Burst.Compiler.IL.Server.CompileLibraryJob request, Burst.Compiler.IL.Server.CompilerServerJobExecutionContext executionContext) [0x002aa] in <cd6e15731ab84616a776e8bda4f822ab>:0
25.  
26. While compiling job:
27. Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[WRL.Main.Ground.Meshes.SdfSerdeJob+sdf_de_job, WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(WRL.Main.Ground.Meshes.SdfSerdeJob+sdf_de_job&, WRL.Main.Meshes, 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)
28. Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[WRL.Main.Ground.Meshes.SurfaceNetsJob+gen_pn_job, WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(WRL.Main.Ground.Meshes.SurfaceNetsJob+gen_pn_job&, WRL.Main.Meshes, 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)
29. Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[WRL.Main.Ground.Meshes.SurfaceNetsJob+gen_quad_job, WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(WRL.Main.Ground.Meshes.SurfaceNetsJob+gen_quad_job&, WRL.Main.Meshes, 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)
30. Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[WRL.Main.Ground.Meshes.SdfSerdeJob+sdf_se_job, WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(WRL.Main.Ground.Meshes.SdfSerdeJob+sdf_se_job&, WRL.Main.Meshes, 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)
31.  

 

still exist

Spoiler: stack trace

Code (CSharp):

1. Burst internal compiler error: System.Exception: Error while generating hash for method references:
2. Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[WRL.Main.Ground.Meshes.SdfSerdeJob+sdf_de_job, WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(!0&|System.IntPtr, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51|System.IntPtr, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51|Unity.Jobs.LowLevel.Unsafe.JobRanges&, UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null|System.Int32, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51)
3. Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[WRL.Main.Ground.Meshes.SurfaceNetsJob+gen_pn_job, WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(!0&|System.IntPtr, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51|System.IntPtr, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51|Unity.Jobs.LowLevel.Unsafe.JobRanges&, UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null|System.Int32, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51)
4. Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[WRL.Main.Ground.Meshes.SurfaceNetsJob+gen_quad_job, WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(!0&|System.IntPtr, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51|System.IntPtr, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51|Unity.Jobs.LowLevel.Unsafe.JobRanges&, UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null|System.Int32, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51)
5. Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[WRL.Main.Ground.Meshes.SdfSerdeJob+sdf_se_job, WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(!0&|System.IntPtr, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51|System.IntPtr, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51|Unity.Jobs.LowLevel.Unsafe.JobRanges&, UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null|System.Int32, netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51) ---> System.Exception: Error while hashing 0x06000018 in WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null ---> System.Exception: Error while visiting referenced token 0x0A000027 in WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null ---> System.InvalidOperationException: Could not resolve method for member reference 0x0A000027 in assembly WRL.Main.Meshes ---> System.InvalidOperationException: Failed to resolve method with name hash '8b538d9e3637b92c0103addb7518a077' and signature hash 'b60db76fcdb9fecab1d00d232e8a110c' in type definition '2000009'
6.   at Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedTypeDefinition.TryGetMethodImpl (Burst.Compiler.IL.Helpers.Hash128& methodNameHash, Burst.Compiler.IL.Helpers.Hash128& methodSignatureHash, Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedMethodDefinition& result) [0x000f5] in <5d73e465583d43bd9040726026e50505>:0
7.   at Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedTypeDefinition.TryGetMethod (Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedMemberReference reference, Burst.Compiler.IL.Hashing.ILGenericContext genericContext, Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedMethodDefinition& result) [0x00053] in <5d73e465583d43bd9040726026e50505>:0
8.    --- End of inner exception stack trace ---
9.   at Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedTypeDefinition.TryGetMethod (Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedMemberReference reference, Burst.Compiler.IL.Hashing.ILGenericContext genericContext, Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedMethodDefinition& result) [0x0007c] in <5d73e465583d43bd9040726026e50505>:0
10.   at Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedMemberReference.TryResolveMethod (Burst.Compiler.IL.Hashing.ILGenericContext genericContext, Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedMethodDefinition& methodDefinition, Burst.Compiler.IL.Hashing.ILGenericContext& methodGenericContext) [0x0001b] in <5d73e465583d43bd9040726026e50505>:0
11.   at Burst.Compiler.IL.Hashing.CacheRuntime.ILFinalHashCalculator.VisitMemberReference (Burst.Compiler.IL.Hashing.CacheRuntime.Metadata.CachedMemberReference& memberReference, System.Nullable`1[T] constrainedType, Burst.Compiler.IL.Hashing.ILGenericContext genericContext, System.Collections.Immutable.ImmutableArray`1[Burst.Compiler.IL.Hashing.Types.ILType]& methodGenericParameters) [0x00046] in <5d73e465583d43bd9040726026e50505>:0
12.   at Burst.Compiler.IL.Hashing.CacheRuntime.ILFinalHashCalculator.HashMethodDefinition (Burst.Compiler.IL.Hashing.CacheRuntime.ToVisit& itemToVisit) [0x00167] in <5d73e465583d43bd9040726026e50505>:0
13.    --- End of inner exception stack trace ---
14.   at Burst.Compiler.IL.Hashing.CacheRuntime.ILFinalHashCalculator.HashMethodDefinition (Burst.Compiler.IL.Hashing.CacheRuntime.ToVisit& itemToVisit) [0x001ff] in <5d73e465583d43bd9040726026e50505>:0
15.   at Burst.Compiler.IL.Hashing.CacheRuntime.ILFinalHashCalculator.VisitItem (Burst.Compiler.IL.Hashing.CacheRuntime.ToVisit& itemToVisit) [0x000a6] in <5d73e465583d43bd9040726026e50505>:0
16.    --- End of inner exception stack trace ---
17.   at Burst.Compiler.IL.Hashing.CacheRuntime.ILFinalHashCalculator.VisitItem (Burst.Compiler.IL.Hashing.CacheRuntime.ToVisit& itemToVisit) [0x000de] in <5d73e465583d43bd9040726026e50505>:0
18.   at Burst.Compiler.IL.Hashing.CacheRuntime.ILFinalHashCalculator.GetHashImpl (Mono.Cecil.MethodReference methodReference) [0x001f5] in <5d73e465583d43bd9040726026e50505>:0
19.   at Burst.Compiler.IL.Hashing.CacheRuntime.ILFinalHashCalculator.GetPerMethodHashes (Burst.Compiler.IL.MethodReferenceWithLinkName[] methodReferences, Burst.Compiler.IL.Hashing.CacheRuntime.HashCacheAssemblyStore assemblyStore, Burst.Compiler.IL.AssemblyLoader assemblyLoader, Burst.Compiler.IL.NativeCompilerOptions options, Burst.Compiler.IL.Helpers.DebugLogWriter debugLogWriter, Burst.Compiler.IL.Server.ProfileDelegate profileCallback, Burst.Compiler.IL.Hashing.CacheRuntime.OnVisitItemDelegate onVisitItem) [0x00070] in <5d73e465583d43bd9040726026e50505>:0
20.    --- End of inner exception stack trace ---
21.   at Burst.Compiler.IL.Hashing.CacheRuntime.ILFinalHashCalculator.GetPerMethodHashes (Burst.Compiler.IL.MethodReferenceWithLinkName[] methodReferences, Burst.Compiler.IL.Hashing.CacheRuntime.HashCacheAssemblyStore assemblyStore, Burst.Compiler.IL.AssemblyLoader assemblyLoader, Burst.Compiler.IL.NativeCompilerOptions options, Burst.Compiler.IL.Helpers.DebugLogWriter debugLogWriter, Burst.Compiler.IL.Server.ProfileDelegate profileCallback, Burst.Compiler.IL.Hashing.CacheRuntime.OnVisitItemDelegate onVisitItem) [0x00116] in <5d73e465583d43bd9040726026e50505>:0
22.   at Burst.Compiler.IL.NativeCompiler.ComputePerMethodHash (System.ValueTuple`2[System.String,Burst.Compiler.IL.Helpers.Hash128][]& perMethodHashes, System.Collections.Generic.HashSet`1[Burst.Compiler.IL.AssemblyNameReferenceAndMetadata]& referencedAssemblies, Burst.Compiler.IL.Helpers.DebugLogWriter debugLogWriter, Burst.Compiler.IL.Server.ProfileDelegate profileCallback) [0x00007] in <5d73e465583d43bd9040726026e50505>:0
23.   at Burst.Compiler.IL.Server.LibraryCompiler.HashAndCompileMethodGroup (Burst.Compiler.IL.Server.CompilationJob request, Burst.Compiler.IL.Server.CompilerServerJobExecutionContext executionContext, System.Int32 methodGroupIndex, Burst.Compiler.IL.Server.SharedLibraryCompilationState sharedState, Burst.Compiler.IL.Aot.AotCompilerOptions defaultOptions, Burst.Compiler.IL.NativeCompiler& nativeCompiler, Burst.Compiler.IL.Aot.AotModuleGroup& aotModuleGroup) [0x002d7] in <5d73e465583d43bd9040726026e50505>:0
24.  
25. While compiling job:
26. Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[WRL.Main.Ground.Meshes.SdfSerdeJob+sdf_de_job, WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(WRL.Main.Ground.Meshes.SdfSerdeJob+sdf_de_job&, WRL.Main.Meshes, 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)
27. Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[WRL.Main.Ground.Meshes.SurfaceNetsJob+gen_pn_job, WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(WRL.Main.Ground.Meshes.SurfaceNetsJob+gen_pn_job&, WRL.Main.Meshes, 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)
28. Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[WRL.Main.Ground.Meshes.SurfaceNetsJob+gen_quad_job, WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(WRL.Main.Ground.Meshes.SurfaceNetsJob+gen_quad_job&, WRL.Main.Meshes, 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)
29. Unity.Jobs.IJobParallelForExtensions+ParallelForJobStruct`1[[WRL.Main.Ground.Meshes.SdfSerdeJob+sdf_se_job, WRL.Main.Meshes, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null::Execute(WRL.Main.Ground.Meshes.SdfSerdeJob+sdf_se_job&, WRL.Main.Meshes, 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)
30.  

 

submitted

 

IN-15679

 

Error:
Burst internal compiler error: System.Exception: Error while generating hash for method references: Unity.Networking.Transport.SimulatorPipelineStage, Unity.Networking.Transport, Version=0.0.0.0, Culture=neutral, ...

Solution so far: restarting the editor.
Unity version: 2021.3.11

 

@tim_jones I can confirm this happens on 2022.2b13. I also have the Transport package (version 1.2) installed along with the newest entities 1.0.

Atm, restarting the editor does "fix" it.

I should mention that I was previously on Burst 1.5.x and I wasn't seeing this. I moved to 2022.2b for the newest Entities and this showed up.

 

For me the repro is simply creating a new project with 3D URP, removing tutorial assets, then adding the entities package to it. Nothing more.

Details here.

 

@tim_jones Any news on this front (even it is just a "yeah... no one is looking into this")? I've failed to repro this in a small isolated project so I can't really submit a bug report. I'd be happy to assist in any other way, though (grant access to my project's repo and sit down with someone from the burst team even).

It's a huge hindrance to have to restart the editor every time I make any code change and its starting to affect my already very limited time to work on this project.

 

@tim_jones Thanks for the reply (any reply is always nice hahaha).

1. The error message, yes. The list of jobs it points out, no. I've looked through these jobs multiple times and their bursted versions do compile (can see them in the burst inspector) and they do run correctly until the first code change happens. After the first recompile, this error shows up. You can also see, from the logs of both the first recompile and second recompile, that they're not always the exactly same (which may be expected depending on how burst works internally, but I figured I'd mention it).

2. Yes --- every code change (within the same AsmDef) with the editor open causes this error to appear. For example, if I change code in an editor AsmDef no problems appear.

3. It was on 1.8.0. I updated to 1.8.2 and it didn't fix it. (The attached logs are from 1.8.2)

It's worth mentioning that if I look in the Burst inspector the job appears compiled correctly. At runtime, however, none of the Bursted code runs (if I look at the profiler, it shows and behaves, perf-wise, as though it's the non-bursted version running).

 

Thanks @tim_jones! I can also confirm this still happens on Unity's current 2022.2.1f1 release.

 

@tim_jones Thanks for looking into the problem and apologies for taking this long to get back to you. Unfortunately, it's quite a large tech-demo/prototype with a bunch of sensitive stuff in it --- I can't separate things out without spending a bunch of time on it. I did try to do it, but it's just way too much of a time investment atm for me.

I'd be happy to accommodate any other way to investigate the issue except for this one; in the mean time, I'll just live with this until I can find the time to go investigate this stuff myself. My first thought is to just go commenting large swaths of the code-base out until I stop seeing the problem and then uncomment it in 'binary search'-fashion till I find the root cause... Maybe there's some #def I can use to get more information from the Burst compilation process or maybe you can direct me to a log I could sift through to find more details on the internal compiler error?

 

Happens to me as well in similar fashion. Restarting editor works.
The project is too large to upload as whole and it would take a lot of time trying to strip it.

Code (CSharp):

1. ---> System.Exception: Error while resolving interface method 0x060000B6 in UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null on type 0x0200066C in assembly c:\Data\Projects\Volcanoids\Library\ScriptAssemblies\Volcanoids.dll
2. ---> System.InvalidOperationException: Failed to resolve method with name hash '48be31a2be36b8a153b52a47e12525be' in type definition '0x0200066C in assembly c:\Data\Projects\Volcanoids\Library\ScriptAssemblies\Volcanoids.dll'

Based on log file it fails to resolve IJob.Execute method (0x060000B6 method, 0x0200066C type).
The job itself is SelectTarget (0x0200066C).

The job is nested type, simple as this:
(un-nesting does not fix it)

Code (CSharp):

1.  
2. public static partial class TargetDetection
3. {
4.     [BurstCompile]
5.     struct SelectTarget : IJob
6.     {
7.         [ReadOnly] public NativeList<TargetPair> Pairs;
8.  
9.         public NativeArray<DetectedTarget> DetectorBestTarget;
10.  
11.         public void Execute()
12.         {
13.             int count = Pairs.Length;
14.             for (int i = 0; i < count; i++)
15.             {
16.                 var pair = Pairs[i];
17.                 var best = DetectorBestTarget[pair.DetectorIndex];
18.                 if (best.Metric == 0 || pair.Metric < best.Metric)
19.                 {
20.                     DetectorBestTarget[pair.DetectorIndex] = new DetectedTarget { Metric = pair.Metric, TargetIndex = pair.TargetIndex };
21.                 }
22.             }
23.         }
24.     }
25. }

 

That was copy paste error, I've fixed it.
I'll do the logging.

There's method which schedules it. Detector.Targets is persistent native array.
The whole process is suboptimal, but I'm just prototyping and learning how to use jobs.

This error is not specific to SelectTarget job, it happens more or less to every other job I have in the project.

Code (CSharp):

1. static JobHandle ScheduleDetection<TEvaluator>(JobHandle handle)
2.         where TEvaluator : unmanaged, IDetectorEvaluator
3.     {
4.         var detectors = DetectorStorage<TEvaluator>.Data;
5.         var targets = TargetStorage.Data;
6.  
7.         if (detectors.Count == 0)
8.             return handle;
9.  
10.         if (Time.frameCount % 100 == 0)
11.         {
12.             Debug.Log($"Target detection, targets: {targets.Count}, detectors: {detectors.Count}, queries: {targets.Count * detectors.Count}");
13.         }
14.  
15.         detectors.Targets.Clear();
16.         JobHandle buildDetectorDataDependency = DetectorStorage<TEvaluator>.ScheduleUpdateTransforms();
17.  
18.         int count = targets.Count * detectors.Count;
19.         NativeStream targetPairsStream = new NativeStream(detectors.Count, Allocator.TempJob);
20.         NativeStream castsStream = new NativeStream(detectors.Count, Allocator.TempJob);
21.         NativeList<TargetPair> pairs = new NativeList<TargetPair>(count, Allocator.TempJob);
22.         NativeArray<RaycastCommand> raycasts = new NativeArray<RaycastCommand>(detectors.Count * EvaluatorSettings<TEvaluator>.MaxRaycastsPerDetector, Allocator.TempJob);
23.         NativeArray<RaycastHit> raycastHits = new NativeArray<RaycastHit>(detectors.Count * EvaluatorSettings<TEvaluator>.MaxRaycastsPerDetector, Allocator.TempJob);
24.  
25.         FindTargetsJob<TEvaluator> findTargets;
26.         findTargets.Evaluators = detectors.Evaluators;
27.         findTargets.DetectorTransforms = detectors.Transforms;
28.         findTargets.TargetTransforms = targets.Transforms;
29.         findTargets.TargetSettings = targets.Settings;
30.         findTargets.TargetCount = targets.Count;
31.         findTargets.Results = targetPairsStream.AsWriter();
32.         findTargets.Casts = castsStream.AsWriter();
33.         JobHandle dependency = findTargets.Schedule(detectors.Count, 1, JobHandle.CombineDependencies(buildDetectorDataDependency, handle));
34.  
35.         GatherStream gather;
36.         gather.TargetPairStream = targetPairsStream.AsReader();
37.         gather.CastStream = castsStream.AsReader();
38.         gather.Results = pairs;
39.         gather.Raycasts = raycasts;
40.         dependency = gather.Schedule(dependency);
41.  
42.         // Dispose stream
43.         var streamDispose = targetPairsStream.Dispose(dependency);
44.         var castsDispose = castsStream.Dispose(dependency);
45.  
46.         dependency = RaycastCommand.ScheduleBatch(raycasts, raycastHits, 128, dependency);
47.  
48.         SelectTarget selectJob;
49.         selectJob.Pairs = pairs;
50.         selectJob.DetectorBestTarget = detectors.Targets;
51.         dependency = selectJob.Schedule(dependency);
52.  
53.         // Dispose pairs and metrics
54.         var disposePairs = pairs.Dispose(dependency);
55.         var disposeRaycasts = raycasts.Dispose(dependency);
56.         var disposeRaycastHits = raycastHits.Dispose(dependency);
57.  
58.         dependency = JobHandle.CombineDependencies(streamDispose, castsDispose, disposePairs);
59.         dependency = JobHandle.CombineDependencies(dependency, disposeRaycasts, disposeRaycastHits);
60.  
61.         return dependency;
62.     }

 

@tim_jones Thanks, I'll try that. A quick update:

I'm now very confident it has to do with the Unity.Logging package. I took a couple of days and did a bunch of project clean up that I was going to do anyway: reorganized files, split out my project into a few AsmDefs and, luckily, that clarified the error logs a bit --- it only causes problems on the code-gen'ed bursted functions generated by Unity.Logging (logs attached).

If I recompile the AsmDef without any calls to the Unity.Logging package (caught a break and hadn't actually begun using this in the entire project) --- it works perfectly fine. But, this AsmDef that has all the existing usages of the Logging package has the issue.

The attached script is a shortened version of what I'm actually doing, but all the log calls look exactly like that.

 

It's hard, because it does not happen consistently.

I've noticed that sometimes, Burst does not recompile jobs when code changes. I'm not sure it's related, but it might be. Unticking "Jobs / Enable compilation" fixes the issue (meaning jobs run "correctly" without Burst).

Typical case when the error "Burst internal compiler error: System.Exception: Error while generating hash for method references:" happened was when I was moving job into other class (as nested) or the other way.

 

@tim_jones I'll see what I can do. If I'm successfull, I'll forward you the issue here. Also, for what it's worth, I appreciate how active you and the burst team are in the forums. For the past year, you and most of the DOTS team definitely improved a lot in terms of communication and forum presence (not to mention how good the tech itself is becoming)

 

Hi,
I have been able to reproduce the Error while generating hash for method references with this minimal subset of code:

Code (CSharp):

1.     public enum SomeEnum { A, B }
2.  
3.     [BurstCompile]
4.     public struct EnumWrapper
5.     {
6.         public SomeEnum Value;
7.  
8.         [BurstCompile]
9.         public static implicit operator SomeEnum(EnumWrapper wrapper) => wrapper.Value;
10.     }

Removing the BurstCompile attribute on the implicit operator fixes the issue.
I suppose there may be other use cases that trigger the error but at least this one is 100% repro in my project.

 

I stopped seeing that error in the latest version of Burst 1.8.4 and Unity 2022.2.15f1 --- there were a few items on the changelog that could be responsible for fixing it. I recommend anyone seeing an issue that fits the one I had to try and update to these versions and see how that goes.

I hate when things get fixed magically and with no clear info on what was causing it, but I don't have the time to go through the effort of investigating the exact cause (much to do in the project to go down this rabbit hole). As such, I can't really guarantee the effort of updating will payoff, but... it's at least something to try