dll is not allowed to be included or could not be found (Microsoft.CodeAnalysis)

I'm using Roslyn analyzers following below link: https://docs.unity3d.com/2020.3/Documentation/Manual/roslyn-analyzers.html Everything looks well until I try to build a .apk file. It keeps throwing errors and causing the failure of the building. I found a resolution from an old thread and changed API Compatibility Level to .Net 4.x(since the target of ErrorProne.dll is .Net 4.x), but it didn't help. Does anyone have a clue? The error message: The Assembly Microsoft.CodeAnalysis is referenced by ErrorProne.NET.Core ('Assets/ErrorProne/ErrorProne.NET.Core.dll'). But the dll is not allowed to be included or could not be found. The Unity version: 2020.3.27 Microsoft.CodeAnalysis: 2.9.0