Install the MemoryPack.Unity package by referencing the git URL An error has been reported

[ZZQzero]

Install the MemoryPack.Unity package by referencing the git URL
https://github.com/Cysharp/MemoryPack.git?path=src/MemoryPack.Unity/Assets/MemoryPack.Unity

[neuecc]

PreserveAttribute is exists in Core.
Have you referenced the Core library?
https://github.com/Cysharp/MemoryPack/blob/ca28202a65b22b6fd3ea66b4c75eab252255a097/src/MemoryPack.Core/Internal/PreserveAttribute.cs

[ZZQzero]

Thank you for your reply.

Because I'm using the latest version MemoryPack, Unity doesn't support C# advanced syntax

[neuecc]

So you're saying you haven't installed it?
As written in the Installation Section, both installations are required.
https://github.com/Cysharp/MemoryPack?tab=readme-ov-file#unity

[carrascodev]

this is happening with MessagePack too, I guess because Core/Shims etc doesn't have a package.json nor the package.json in MemoryPack.Unity includes the dependencies.

[neuecc]

Oh, I see, I'll take a look at the dependency.

[neuecc]

asmdef references MemoryPack.Core in precompiledRefern
https://github.com/Cysharp/MemoryPack/blob/main/src/MemoryPack.Unity/Assets/MemoryPack.Unity/Runtime/MemoryPack.Unity.asmdef#L9-L11
The dependencies in package.json are dependencies within upm, so NuGet is outside of that and should not be relevant.

[carrascodev]

Yes but in order for that to work you need to have the DLL included on UPM source somehow, I suggest making a package.json for core module, and further dependencies because of that. But honestly using nuget for unity is good enough for fixing this. Just decided to comment because installs via UPM only won't work.

[neuecc]

In the end, is it okay to say that the error is occurring because you are not following the instructions, even though NuGetForUnity says to add the dll first?
If that's the case, I'm going to close it.