Bug Compile failure

Hi,
getting these two errors running unity 2022.3.4f1

Library\PackageCache\com.unity.entities@1.0.11\Unity.Entities.Hybrid.HybridComponents\CompanionComponentSupportedTypes.cs(41,20): error CS0104: 'DecalProjector' is an ambiguous reference between 'UnityEngine.Rendering.HighDefinition.DecalProjector' and 'UnityEngine.Rendering.Universal.DecalProjector'

Failed to find entry-points:
Mono.Cecil.AssemblyResolutionException: Failed to resolve assembly: 'Unity.Transforms.Hybrid, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' ---> System.Exception: Failed to resolve assembly 'Unity.Transforms.Hybrid, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' in directories: C:\Program Files\Unity\Hub\Editor\2022.3.4f1\Editor\Data\MonoBleedingEdge\lib\mono\unityjit-win32
D:\Unity\DCC\Golf Game\Library\PackageCache\com.unity.burst@1.8.7
D:\Unity\DCC\Golf Game\Library\PackageCache\com.unity.burst@1.8.7\Unity.Burst.CodeGen
D:\Unity\DCC\Golf Game\Library\PackageCache\com.unity.visualscripting@1.8.0\Editor\VisualScripting.Core\Dependencies\DotNetZip
D:\Unity\DCC\Golf Game\Library\PackageCache\com.unity.nuget.mono-cecil@1.11.4
D:\Unity\DCC\Golf Game\Library\PackageCache\com.unity.visualscripting@1.8.0\Editor\VisualScripting.Core\EditorAssetResources
D:\Unity\DCC\Golf Game\Library\PackageCache\com.unity.collab-proxy@2.0.5\Lib\Editor\PlasticSCM
C:\Program Files\Unity\Hub\Editor\2022.3.4f1\Editor\Data\PlaybackEngines\WebGLSupport
D:\Unity\DCC\Golf Game\Library\PackageCache\com.unity.visualscripting@1.8.0\Editor\VisualScripting.Core\Dependencies\YamlDotNet
C:\Program Files\Unity\Hub\Editor\2022.3.4f1\Editor\Data\PlaybackEngines\WindowsStandaloneSupport
D:\Unity\DCC\Golf Game\Library\PackageCache\com.unity.testtools.codecoverage@1.2.4\lib\ReportGenerator
D:\Unity\DCC\Golf Game\Library\PackageCache\com.unity.ext.nunit@1.0.6\net35\unity-custom
D:\Unity\DCC\Golf Game\Library\PackageCache\com.unity.collections@2.1.4\Unity.Collections.LowLevel.ILSupport
D:\Unity\DCC\Golf Game\Library\PackageCache\com.unity.entities@1.0.11\Unity.Entities\SourceGenerators
C:\Program Files\Unity\Hub\Editor\2022.3.4f1\Editor\Data\Managed
D:\Unity\DCC\Golf Game\Library\PackageCache\com.unity.visualscripting@1.8.0\Runtime\VisualScripting.Flow\Dependencies\NCalc
C:\Program Files\Unity\Hub\Editor\2022.3.4f1\Editor\Data\Managed\UnityEngine
D:\Unity\DCC\Golf Game\Library\ScriptAssemblies ---> Mono.Cecil.AssemblyResolutionException: Failed to resolve assembly: 'Unity.Transforms.Hybrid, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null'
at Mono.Cecil.BaseAssemblyResolver.Resolve (Mono.Cecil.AssemblyNameReference name, Mono.Cecil.ReaderParameters parameters) [0x00105] in <853812ae52c341daaef3c62ecdb86b32>:0
at zzzUnity.Burst.CodeGen.AssemblyResolver.Resolve (Mono.Cecil.AssemblyNameReference name) [0x00013] in <532a8a169e6a4953b5d9a4c213b71772>:0
--- End of inner exception stack trace ---
at zzzUnity.Burst.CodeGen.AssemblyResolver.Resolve (Mono.Cecil.AssemblyNameReference name) [0x00060] in <532a8a169e6a4953b5d9a4c213b71772>:0
at Burst.Compiler.IL.AssemblyLoader.Resolve (Mono.Cecil.AssemblyNameReference name) [0x0007e] in <532a8a169e6a4953b5d9a4c213b71772>:0
at Burst.Compiler.IL.Server.EntryPointMethodFinder.FindEntryPoints (System.String[] rootAssemblyNames, Burst.Compiler.IL.Hashing.CacheRuntime.HashCacheAssemblyStore assemblyStore, Burst.Compiler.IL.AssemblyLoader assemblyLoader, Burst.Compiler.IL.NativeCompilerOptions options, Burst.Compiler.IL.Server.ProfileDelegate profileCallback, System.Boolean includeRootAssemblyReferences, System.Boolean splitTargets) [0x00055] in <532a8a169e6a4953b5d9a4c213b71772>:0
at Burst.Compiler.IL.Server.CompilerServer.FindMethods (Burst.Compiler.IL.Server.CompilationRequest request, Burst.Compiler.IL.Server.Caching.CacheManager cacheManager, Burst.Compiler.IL.CompilerStatistics stats) [0x000f5] in <532a8a169e6a4953b5d9a4c213b71772>:0
at Burst.Compiler.IL.Server.CompilerServer+<>c__DisplayClass17_0.<Compile>b__0 (Burst.Compiler.IL.Server.Caching.CacheManager cacheManager) [0x00000] in <532a8a169e6a4953b5d9a4c213b71772>:0
at Burst.Compiler.IL.Server.CompilerServer+<>c__DisplayClass26_0`1[TResult].<RunTask>b__0 () [0x00145] in <532a8a169e6a4953b5d9a4c213b71772>:0
at Burst.Compiler.IL.Server.CompilerServer.RunTask[TResult] (Burst.Compiler.IL.Server.TargetKey target, System.String taskName, System.String[] assemblyFolders, System.Threading.CancellationToken cancellationToken, System.Func`2[T,TResult] function) [0x00131] in <532a8a169e6a4953b5d9a4c213b71772>:0
at Burst.Compiler.IL.Server.CompilerServer.Compile (Burst.Compiler.IL.Server.CompilationRequest request, Burst.Compiler.IL.Server.CompilationMessageStreamer streamer, System.Threading.CancellationToken cancellationToken) [0x0017f] in <532a8a169e6a4953b5d9a4c213b71772>:0

While compiling job:

 

Your first issue can be resolved by specifying from which Assembly you want to use the DecalProjector from, since both UnityEngine.Rendering.HighDefinition and 'UnityEngine.Rendering.Universal have a definition.
Hence the ambiguous reference.
You can do this by adding either

Code (CSharp):

1. using DecalProjector = UnityEngine.Rendering.HighDefinition.DecalProjector;

or

Code (CSharp):

1. using DecalProjector = UnityEngine.Rendering.Universal.DecalProjector;

to the top of your class file next to the usings.

I am not certain about the second one, but it could be that the first issue could cause it as well.

 

The error is from the Unity Cache
Library\PackageCache\com.unity.entities@1.0.11\Unity.Entities.Hybrid.HybridComponents\CompanionComponentSupportedTypes.cs(41,20)

It is effectively read-only as the library is managed automatically and any changes will be overwritten automatically.

The define should be handled by this section:

#if HDRP_7_0_0_OR_NEWER
using UnityEngine.Rendering.HighDefinition;
#endif
#if URP_7_0_0_OR_NEWER
using UnityEngine.Rendering.Universal;
#endif

However URP_7_0_0_OR_NEWER is set to false, therefore it does not know which to use.
I am using URP 14, and I don't know why Unity is overriding URP_7_0_0_OR_NEWER to false.

 

This issue happens if you have both HDRP and URP enabled in the project (i consider this a bug though)

 

Welp, thanks. That's weird, the only packages I installed are ECS and Unity Terrain for URP, in a brand new URP project. I wonder why HDRP was added. I would have guessed automatically as a dep, but it was not marked as a dependency.

I removed the package and things seem fine. Hopefully I did not break something for down the road.