DLL reference compiler error

Just open the attached unity project with unity 2020, and you'll get the error:

Code (CSharp):

1. Assembly 'Assets/System.Memory.dll' will not be loaded due to errors:
2. System.Memory references strong named System.Buffers, versions has to match. Assembly references: 4.0.2.0 Found in project: 4.0.3.0.

I generated the DLL dependency tree with a vanilla csproj and let nuget autoresolve them so i know for sure these DLLs work with each other. They work in unity 2018 and 2019, but it doesn't like it in 2020.

I reported the bug literally months ago and got a no-repro response, yet i can reproduce it across several OSes and Unity 2020.1.x alphas and betas.

 

Hi I am getting same error, got stuck for a while! Any clue on this issues. Please let me know.

 

I'm on the same boat.

I had Google Text to Speech and Google Translate API working on Unity 2019.3 but Unity 2020 requires the dlls to be the exact version and wont load the dlls despite them being compatible.

Code (CSharp):

1.  
2. Assembly 'Library/ScriptAssemblies/Assembly-CSharp-Editor.dll' will not be loaded due to errors:
3. Reference has errors 'Google.Cloud.TextToSpeech.V1'.
4.  
5. Assembly 'Assets/Google/Common/Google.Api.Gax.Grpc.dll' will not be loaded due to errors:
6. Reference has errors 'Google.Apis.Auth'.
7.  
8. Assembly 'Assets/Google/Common/Google.Apis.Auth.dll' will not be loaded due to errors:
9. Google.Apis.Auth references strong named Newtonsoft.Json, versions has to match. Assembly references: 10.0.0.0 Found in project: 11.0.0.0.
10.  
11. Assembly 'Assets/Google/Common/Google.Apis.Auth.PlatformServices.dll' will not be loaded due to errors:
12. Reference has errors 'Google.Apis.Auth'.
13.  
14. Assembly 'Assets/Google/Common/Google.Apis.Core.dll' will not be loaded due to errors:
15. Google.Apis.Core references strong named Newtonsoft.Json, versions has to match. Assembly references: 10.0.0.0 Found in project: 11.0.0.0.
16.  
17. Assembly 'Assets/Google/Common/Google.Apis.dll' will not be loaded due to errors:
18. Google.Apis references strong named Newtonsoft.Json, versions has to match. Assembly references: 10.0.0.0 Found in project: 11.0.0.0.
19.  
20. Assembly 'Assets/Google/Common/Google.Apis.PlatformServices.dll' will not be loaded due to errors:
21. Reference has errors 'Google.Apis'.
22.  
23. Assembly 'Assets/Google/Common/Grpc.Auth.dll' will not be loaded due to errors:
24. Grpc.Auth references strong named Google.Apis.Auth, versions has to match. Assembly references: 1.21.0.0 Found in project: 1.41.1.0.
25. Grpc.Auth references strong named Google.Apis.Auth.PlatformServices, versions has to match. Assembly references: 1.21.0.0 Found in project: 1.41.1.0.
26.  
27. Assembly 'Assets/Google/TextToSpeech/Google.Cloud.TextToSpeech.V1.dll' will not be loaded due to errors:
28. Reference has errors 'Google.Api.Gax.Grpc'.
29.  
30. Assembly 'Assets/Google/Translate/Google.Cloud.Translate.V3.dll' will not be loaded due to errors:
31. Reference has errors 'Google.Api.Gax.Grpc'.
32.  
33. Assembly 'Assets/Google/Translate/Google.LongRunning.dll' will not be loaded due to errors:
34. Reference has errors 'Google.Api.Gax.Grpc'.
35.  

 

I just managed to work around this by unticking "Validate References" on the inspector.



It's good that we can bypass the this validation.. but imho having the validation work like this kind of defeats the purpose of having it at all.

 

Thanks a Lot! It works

 

It's using the wrong assembly version, but where does that come is what to look for, Unity got it from somewhere. In my case this was triggered when I replaced CompilerServices.Unsafe that ships with Collections. So my theory is it takes the first reference it hits, and then uses that assembly version for every other dll with a reference.