Issues when building in Unity 2022

Cesium for Unity
1

Hi there!
I was following the developer-setup guide and successfully created a tgz file. When I tried to import it using Unity Package Manager I get those errors:

Unity.SourceGenerators\Unity.MonoScriptGenerator.MonoScriptInfoGenerator\AssemblyMonoScriptTypes.gen.cs(5,20): error CS0101: The namespace ‘’ already contains a definition for ‘UnitySourceGeneratedAssemblyMonoScriptTypes_v1’

Unity.SourceGenerators\Unity.MonoScriptGenerator.MonoScriptInfoGenerator\AssemblyMonoScriptTypes.gen.cs(2,6): error CS0579: Duplicate ‘System.Runtime.CompilerServices.CompilerGenerated’ attribute

Unity.SourceGenerators\Unity.MonoScriptGenerator.MonoScriptInfoGenerator\AssemblyMonoScriptTypes.gen.cs(3,6): error CS0579: Duplicate ‘System.ComponentModel.EditorBrowsableAttribute’ attribute

Unity.SourceGenerators\Unity.MonoScriptGenerator.MonoScriptInfoGenerator\AssemblyMonoScriptTypes.gen.cs(4,6): error CS0579: Duplicate ‘System.CodeDom.Compiler.GeneratedCodeAttribute’ attribute

Unity.SourceGenerators\Unity.MonoScriptGenerator.MonoScriptInfoGenerator\AssemblyMonoScriptTypes.gen.cs(301,40): error CS0111: Type ‘UnitySourceGeneratedAssemblyMonoScriptTypes_v1’ already defines a member called ‘Get’ with the same parameter types

Unity.SourceGenerators\Unity.MonoScriptGenerator.MonoScriptInfoGenerator\AssemblyMonoScriptTypes.gen.cs(276,10): error CS0579: Duplicate ‘System.Runtime.InteropServices.StructLayout’ attribute

I was building the package using Unity 2022 as I want to try the new polygon clipping feature.
Any idea what can I do? Thanks a lot :slight_smile:

My setup:
Unity 2022.3.20f1
Visual Studio 2022
cmake 3.28.3
dotnet 8.0.201

2

Hi @Tomer_Ben-gigi,

Welcome to the community! We just released Cesium for Unity v1.8.0, which includes the polygon clipping feature you were trying to use. I suggest downloading it from the package registry, or from the Github release if the .tgz file is needed. Let us know how it goes!

3

Happen to me also.
Fixed it by opening the tar.gz and the tar inside it and doing the following modifications:

com.cesium.unity-1.8.0\package\Editor\generated\Unity.SourceGenerators\Unity.MonoScriptGenerator.MonoScriptInfoGenerator\AssemblyMonoScriptTypes.gen.cs:

  • class UnitySourceGeneratedAssemblyMonoScriptTypes_v1 → UnitySourceGeneratedAssemblyMonoScriptTypes_v2

com.cesium.unity-1.8.0\package\Runtime\generated\Unity.SourceGenerators\Unity.MonoScriptGenerator.MonoScriptInfoGenerator\AssemblyMonoScriptTypes.gen.cs (there are 2 classes named UnitySourceGeneratedAssemblyMonoScriptTypes_v1):

  • class UnitySourceGeneratedAssemblyMonoScriptTypes_v1 → UnitySourceGeneratedAssemblyMonoScriptTypes_v3
  • class UnitySourceGeneratedAssemblyMonoScriptTypes_v1 → UnitySourceGeneratedAssemblyMonoScriptTypes_v4

After that do “Add package from disk…” in the Package Manager

2 Likes
4

Welcome to the community @Tal_Che ! Thank you for sharing your solution with the rest of the community. :smile:

I’ve gone ahead and opened a Github issue with the details from this forum thread. Thank you @Tomer_Ben-gigi for the initial report!