Compile error after adding Unity Collections package

[yuchenz27]

After adding Unity Collections pakcage, I got this error

Library/PackageCache/com.unity.collections@1.1.0/Unity.Collections/xxHash3.cs(560,27): error CS0234: The type or namespace name 'umul128' does not exist in the namespace 'Common' (are you missing an assembly reference?)
Library/PackageCache/com.unity.collections@1.1.0/Unity.Collections/xxHash3.cs(582,27): error CS0234: The type or namespace name 'umul128' does not exist in the namespace 'Common' (are you missing an assembly reference?)
Library/PackageCache/com.unity.collections@1.1.0/Unity.Collections/xxHash3.cs(589,28): error CS0234: The type or namespace name 'umul128' does not exist in the namespace 'Common' (are you missing an assembly reference?)
Library/PackageCache/com.unity.collections@1.1.0/Unity.Collections/xxHash3.cs(825,22): error CS0234: The type or namespace name 'umul128' does not exist in the namespace 'Common' (are you missing an assembly reference?)

My platform is iOS.

The second answer of this link explains how to add Unity Collections pakcage

https://forum.unity.com/threads/how-do-i-add-the-collections-package.1138399/

Does anyone know how to fix this? Thank you.

[supiket]

Facing the same issue on Android target.

[0xPr0f]

hey, can you guys drop steps to reproduce ?

[yuchenz27]

@0xPr0f sure.

1. Create a new unity project and import moralis boilerplate unitypackage
2. Add com.unity.collections package

I am using Unity2021.2.12 on mac

[supiket]

I solved the issue in the following way:

1. Moved the com.unity.collections@<your_version> folder from <YourProjectRoot>/Library/PackageCache/ directory to <YourProjectRoot>/Packages/ directory.
2. Opened the file com.unity.collections@<your_version>/Unity.Collections/xxHash3.cs.
3. Changed the Common.umul128(...) calls to Unity.Burst.Intrinsics.Common.umul128(...) calls.

The reason for step 1 is that the Library directory is "volatile", so when I edit the script without applying step 1, step 3 was undone with each Unity recompile.

[supiket]

Also, I'm using Unity 2020.3.22f1 (LTS) on Windows.
I believe doing this would require manual updating of the Collections package from this point on. Sadly I will go with this, since I haven't been able to find another solution for days now.

[xactant]

@yuchenz27 and @supiket is this a conflict with the Moralis / Unity SDK - re-reading your comments above, it is not apparent that it is. Are you seeing something not reflected in your comments? Thanks.

[supiket]

I believe the problem is with Common.Logging and/or Common.Logging.Core dll files. There is somehow a conflict of the namespace Common between these dll files and Unity.Burst.Intrinsics.Common, which is called in the Collections script xxHash3.cs.

[yuchenz27]

@xactant I think there is a naming conflict between Unity.Burst.Intrinsics.Common and these dlls in moralis folder:

It is fine to use either of Moralis SDK or Unity Collections package. Those errors appeared if they were used together.

[supiket]

Also for reference, a similar issue was opened for Nethereum.

[0xPr0f]

this is conflict between two packages with the same name

[yuchenz27]

@supiket I think your solution is probably the only quick way to fix that unless Unity upgrades the Collections package or they stop using those Common.Logging dlls.

[xactant]

Looking through the code, the Common.Logging.DLL is included due to Nethereum. As this is a conflict between two 3RD party packages and not with the Moralis SDK, I am not going to take action on this issue at this time.

Changing status to "wontfix" for now.

[emandiev]

The steps suggested by @supiket worked for me as well:

I solved the issue in the following way:

1. Moved the com.unity.collections@<your_version> folder from <YourProjectRoot>/Library/PackageCache/ directory to <YourProjectRoot>/Packages/ directory.
2. Opened the file com.unity.collections@<your_version>/Unity.Collections/xxHash3.cs.
3. Changed the Common.umul128(...) calls to Unity.Burst.Intrinsics.Common.umul128(...) calls.