Receipt validation - CrossPlatformValidator or AppleValidator?

I was able to test iAP's successfully, and I'm attempting to add receipt validation. The project I am working on is targeted for iOS only. (I have a separate project on my PC which will target Android) I'm following the process per https://docs.unity3d.com/Manual/UnityIAPValidatingReceipts.html , and parts of it were confusing to me.

It states "You must supply this class with either your Google Play public key or Apple’s root certificate, or both if you wish to validate across both platforms.", and in my case, since my Unity project on my mac is not generating a GooglePlayTangle.cs file, I attempted to supply the class with only AppleTangle.Data(), which gave me the error:

, which indicates I need to supply it with both GooglePlayTangle.Data() from the GooglePlayTangle.cs file which did not generate.

So my question is: do I need to use CrossPlatformValidator? Or can I use the AppleValidator class instead? (The AppleValidator class was mentioned under the "Parsing raw Apple receipts" section in the above document)

 

UPDATE: I was able to get the CrossPlatformValidator to work in-absence of GooglePlayTangle.cs. I passed "null" in-place of GooglePlayTangle.Data & the function performed properly. Note: it only worked ON AN IOS DEVICE, not the Unity Editor.

 

Would you share how you handled this?

This is what I am trying to do:
https://forum.unity3d.com/threads/i-there-an-example-of-local-validation-receipt-validation.446777/

 

It looks like you sorted-out your issue. I'm glad to see that. The issue I had was resolved by passing "null" to the function & it worked w/o error.