Latest Entites and InputSystems packages conflict.

Given a new project. Unity 2019.3.0f3; .Net4.x; mono or ilcpp...
Install the latest packages for Entities (preview.10-0.4.0) and InputSystems (preview.3-1.0.0)...
Get this error.

Code (CSharp):

1. Something went wrong while Post Processing the assembly (Assembly-CSharp-firstpass.dll) :
2. Failed to resolve System.Diagnostics.Process
3.   at Unity.Entities.CodeGen.TypeReferenceExtensions.CheckedResolve (Mono.Cecil.TypeReference typeReference) [0x00001] in /private/tmp/ttt/Library/PackageCache/com.unity.entities@0.4.0-preview.10/Unity.Entities.CodeGen/CecilExtensionMethods.cs:13
4.   at Unity.Entities.CodeGen.BlobAssetSafetyVerifier.<VerifyMethod>g__IsTypeRestrictedToBlobAssetStorage|3_0 (Mono.Cecil.TypeReference tr, Unity.Entities.CodeGen.BlobAssetSafetyVerifier+<>c__DisplayClass3_0& ) [0x000f0] in /private/tmp/ttt/Library/PackageCache/com.unity.entities@0.4.0-preview.10/Unity.Entities.CodeGen/BlobAssetSafety/BlobAssetSafetyVerifier.cs:64
5.   at Unity.Entities.CodeGen.BlobAssetSafetyVerifier.VerifyMethod (Mono.Cecil.MethodDefinition method, System.Collections.Generic.HashSet`1[T] _nonRestrictedTypes) [0x00058] in /private/tmp/ttt/Library/PackageCache/com.unity.entities@0.4.0-preview.10/Unity.Entities.CodeGen/BlobAssetSafety/BlobAssetSafetyVerifier.cs:90
6.   at Unity.Entities.CodeGen.BlobAssetSafetyVerifier.AssertNoBlobAssetLeavesBlobAssetStorage () [0x00063] in /private/tmp/ttt/Library/PackageCache/com.unity.entities@0.4.0-preview.10/Unity.Entities.CodeGen/BlobAssetSafety/BlobAssetSafetyVerifier.cs:37
7.   at Unity.Entities.CodeGen.BlobAssetSafetyVerifier.PostProcessImpl () [0x0000a] in /private/tmp/ttt/Library/PackageCache/com.unity.entities@0.4.0-preview.10/Unity.Entities.CodeGen/BlobAssetSafety/BlobAssetSafetyVerifier.cs:20
8.   at Unity.Entities.CodeGen.EntitiesILPostProcessor.PostProcess (Mono.Cecil.AssemblyDefinition assemblyDefinition, System.Boolean& madeAChange) [0x00009] in /private/tmp/ttt/Library/PackageCache/com.unity.entities@0.4.0-preview.10/Unity.Entities.CodeGen/EntitiesILPostProcessor.cs:231
9.   at Unity.Entities.CodeGen.EntitiesILPostProcessors.Process (Unity.CompilationPipeline.Common.ILPostProcessing.ICompiledAssembly compiledAssembly) [0x0004b] in /private/tmp/ttt/Library/PackageCache/com.unity.entities@0.4.0-preview.10/Unity.Entities.CodeGen/EntitiesILPostProcessor.cs:44
10.   at UnityEditor.Scripting.ScriptCompilation.ILPostProcessing.RunILPostProcessors (UnityEditor.Scripting.ScriptCompilation.ScriptAssembly assembly, System.String outputTempPath) [0x0011b] in /Users/builduser/buildslave/unity/build/Editor/Mono/Scripting/ScriptCompilation/ILPostProcessing.cs:209
11.   at UnityEditor.Scripting.ScriptCompilation.ILPostProcessing.PostProcess (UnityEditor.Scripting.ScriptCompilation.ScriptAssembly assembly, System.Collections.Generic.List`1[T] messages, System.String outputTempPath) [0x00061] in /Users/builduser/buildslave/unity/build/Editor/Mono/Scripting/ScriptCompilation/ILPostProcessing.cs:99
12.  

 

Hey,

I had the same problem after update ( error was with System.Collections.Generic.Stack and System.Collections.Generic.SortedDictionary).

I had to change them from code. The issue is related Entities pkg.
Any good solution for this?

Code (CSharp):

1. Something went wrong while Post Processing the assembly (Assembly-CSharp.dll) :
2. Failed to resolve System.Collections.Generic.Stack`1
3.   at Unity.Entities.CodeGen.TypeReferenceExtensions.CheckedResolve (Mono.Cecil.TypeReference typeReference) [0x00001] in C:\Users\Smarty\Dropbox\Projects\Ideas\SwordAdventure\SwordAdventure\Library\PackageCache\com.unity.entities@0.4.0-preview.10\Unity.Entities.CodeGen\CecilExtensionMethods.cs:13
4.   at Unity.Entities.CodeGen.BlobAssetSafetyVerifier.<VerifyMethod>g__IsTypeRestrictedToBlobAssetStorage|3_0 (Mono.Cecil.TypeReference tr, Unity.Entities.CodeGen.BlobAssetSafetyVerifier+<>c__DisplayClass3_0& ) [0x000f0] in C:\Users\Smarty\Dropbox\Projects\Ideas\SwordAdventure\SwordAdventure\Library\PackageCache\com.unity.entities@0.4.0-preview.10\Unity.Entities.CodeGen\BlobAssetSafety\BlobAssetSafetyVerifier.cs:64
5.   at Unity.Entities.CodeGen.BlobAssetSafetyVerifier.VerifyMethod (Mono.Cecil.MethodDefinition method, System.Collections.Generic.HashSet`1[T] _nonRestrictedTypes) [0x00058] in C:\Users\Smarty\Dropbox\Projects\Ideas\SwordAdventure\SwordAdventure\Library\PackageCache\com.unity.entities@0.4.0-preview.10\Unity.Entities.CodeGen\BlobAssetSafety\BlobAssetSafetyVerifier.cs:90
6.   at Unity.Entities.CodeGen.BlobAssetSafetyVerifier.AssertNoBlobAssetLeavesBlobAssetStorage () [0x00063] in C:\Users\Smarty\Dropbox\Projects\Ideas\SwordAdventure\SwordAdventure\Library\PackageCache\com.unity.entities@0.4.0-preview.10\Unity.Entities.CodeGen\BlobAssetSafety\BlobAssetSafetyVerifier.cs:37
7.   at Unity.Entities.CodeGen.BlobAssetSafetyVerifier.PostProcessImpl () [0x0000a] in C:\Users\Smarty\Dropbox\Projects\Ideas\SwordAdventure\SwordAdventure\Library\PackageCache\com.unity.entities@0.4.0-preview.10\Unity.Entities.CodeGen\BlobAssetSafety\BlobAssetSafetyVerifier.cs:20
8.   at Unity.Entities.CodeGen.EntitiesILPostProcessor.PostProcess (Mono.Cecil.AssemblyDefinition assemblyDefinition, System.Boolean& madeAChange) [0x00009] in C:\Users\Smarty\Dropbox\Projects\Ideas\SwordAdventure\SwordAdventure\Library\PackageCache\com.unity.entities@0.4.0-preview.10\Unity.Entities.CodeGen\EntitiesILPostProcessor.cs:231
9.   at Unity.Entities.CodeGen.EntitiesILPostProcessors.Process (Unity.CompilationPipeline.Common.ILPostProcessing.ICompiledAssembly compiledAssembly) [0x0004b] in C:\Users\Smarty\Dropbox\Projects\Ideas\SwordAdventure\SwordAdventure\Library\PackageCache\com.unity.entities@0.4.0-preview.10\Unity.Entities.CodeGen\EntitiesILPostProcessor.cs:44
10.   at UnityEditor.Scripting.ScriptCompilation.ILPostProcessing.RunILPostProcessors (UnityEditor.Scripting.ScriptCompilation.ScriptAssembly assembly, System.String outputTempPath) [0x0011b] in <83a73882c51c4602b3d34743827d03e7>:0
11.   at UnityEditor.Scripting.ScriptCompilation.ILPostProcessing.PostProcess (UnityEditor.Scripting.ScriptCompilation.ScriptAssembly assembly, System.Collections.Generic.List`1[T] messages, System.String outputTempPath) [0x00061] in <83a73882c51c4602b3d34743827d03e7>:0

 

For latest entities packages (from 0.2.0 if I remember right) you should use NET Standard 2.0, not .Net4.x

• The default Api Compatibility Level should now be .NET Standard 2.0 and a warning is generated when the project uses .NET 4.x.

https://docs.unity3d.com/Packages/com.unity.entities@0.4/changelog/CHANGELOG.html#changes-2

 

Thanks @eizenhorn
What confused me was entities 0.4.0 was working fine with .net4 until I added other packages. :/

 

Is the Standard 2.0 API a requirements for the foreseeable future?
It's a bummer, because gRPC needs 4.5.

 

does grpc for .net not support .net standard 2.0? or just grcp for c#

 

Please, tell me when you fix it.
Thank you!

 

You should say it like: "After year"

 

Thanks for this! fixed the issue

 

Sorry if this is a silly question but.. how do I apply the patch?

 

Go to the project that has the error and open the file \Library\PackageCache\com.unity.entities@0.4.0-preview.10\Unity.Entities.CodeGen/EntitiesILPostProcessor.cs

Open the patch and find the lines that have the - next to it and replace those with the lines that have a + next to it in the file you opened EntitiesILPostProcessor.cs