TypeLoadException: Could not load type ...

Unity Services
1

Hey guys, I stoped working on a project like 3 month ago and wanted to continue now.
I didnt changed anything but now I get following error:

TypeLoadException: Could not load type 'UnityEngine.Purchasing.RawStoreProvider' from assembly 'Stores, Version=1.0.6352.30263, Culture=neutral, PublicKeyToken=null'.
UnityEngine.Purchasing.StandardPurchasingModule.Instance ()
MyIAPManager.InitializePurchasing () (at Assets/Scripts/MyIAPManager.cs:66)
MyIAPManager.StartIAP () (at Assets/Scripts/MyIAPManager.cs:48)
MyIAPManager.Awake () (at Assets/Scripts/MyIAPManager.cs:36)

Any Clue?

2

@Danbolp

Could you provide a bit more detail about this issue? Could you provide the information requested here, specifically the version of Unity and the IAP plugin: