I tried building or testing the game but i get this error and cant build or run it please help!
Library\PackageCache\com.unity.services.core@1.3.1\Editor\Core\Utils\OrganizationHandler\OrganizationHandler.cs(25,47): error CS0121: The call is ambiguous between the following methods or properties: ‘System.Reflection.ReflectionExtensions.GetRuntimeProperty(System.Type, string)’ and ‘System.Reflection.RuntimeReflectionExtensions.GetRuntimeProperty(System.Type, string)’
Looks like more unwanted crud installed by Unity for you to enjoy.
Extra unwanted packages in new projects (collab, testing, rider and other junk):
About the fastest way I have found to make a project and avoid all this noise is to create the project, then as soon as you see the files appear, FORCE-STOP (hard-kill) Unity (with the Activity Manager or Task Manager), then go hand-edit the Packages/manifest.json file as outlined in the above post, then reopen Unity.
Sometimes the package system gets borked from all this unnecessary churn and requires the package cache to be cleared:
