How to resolve the error in the IAP console?

Question

Unity

What day I'm looking for a solution to the error displayed in the console after reinstalling IAP
Here is the error log:
Here in the text version:

1. Assembly 'Library/ScriptAssemblies/Assembly-CSharp-firstpass.dll' will not be loaded due to errors:
   Reference has errors 'Stores'.
   
2. Assembly 'Library/ScriptAssemblies/Assembly-CSharp.dll' will not be loaded due to errors:
   Reference has errors 'Stores'.
   
3. Assembly 'Library/ScriptAssemblies/Assembly-CSharp-Editor-firstpass.dll' will not be loaded due to errors:
   Reference has errors 'Assembly-CSharp-firstpass'.
   
4. Assembly 'Assets/Plugins/UnityPurchasing/Bin/Editor.dll' will not be loaded due to errors:
   Unable to resolve reference 'UDP'. Is the assembly missing or incompatible with the current platform?
   
5. 'Assets/Plugins/UnityPurchasing/Bin/Stores.dll' will not be loaded due to errors:
   Unable to resolve reference 'UDP'. Is the assembly missing or incompatible with the current platform?

Answer 1

https://forum.unity.com/threads/notice-iap-issues-...