The "AspectInjectorTask" task could not be loaded from the assembly AspectInjector

[KKacer]

I tried to change everything to just target .Net 9.0 and getting this error when I build the solution:

The "AspectInjectorTask" task could not be loaded from the assembly D:\aspect-injector-master\aspects../src/AspectInjector/bin/Debug/net9.0/AspectInjector.dll. Could not load file or assembly 'System.Runtime, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified. Confirm that the declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask.