Error when user cancels the purchase

Hi!
Working with the latest version 2.2.1in Android devices I've found this error when user just cancels the purchase:

ArgumentNullException: Value cannot be null.
Parameter name: key
at System.Collections.Generic.Dictionary`2[TKey,TValue].FindEntry (TKey key) [0x00008] in <a77b706cff6d42519dc3f45262adbd0a>:0
at System.Collections.Generic.Dictionary`2[TKey,TValue].TryGetValue (TKey key, TValue& value) [0x00000] in <a77b706cff6d42519dc3f45262adbd0a>:0
at UnityEngine.Purchasing.ProductCollection.WithStoreSpecificID (System.String id) [0x00002] in <5ecb2210403e4c40ac7ea62abef13f21>:0
at UnityEngine.Purchasing.PurchasingManager.OnPurchaseFailed (UnityEngine.Purchasing.Extension.PurchaseFailureDescription description) [0x0000c] in <5ecb2210403e4c40ac7ea62abef13f21>:0
at UnityEngine.Purchasing.ScriptingStoreCallback+<>c__DisplayClass10_0.<OnPurchaseFailed>b__0 () [0x00000] in <077bf92f53a44ef88bbed88506d6de01>:0
at UnityEngine.Purchasing.Extension.UnityUtil.Update () [0x0007f] in <077bf92f53a44ef88bbed88506d6de01>:0 ​

And the OnPurchaseFailed function is not being triggered so I have an error which I can't handle
What can I do?
Thanks

 

I'm having the same problem.

 

I think it's better to wait for version 2.2.2. Currently stable version 2.1.1 (it's true there are some bugs, but in rare cases)

 

Thanks John,
I've already tried, It seems it works quite fine but there are some errors. For example: sometime when user cancels the purchase and tries to buy it again the ProcessPurchase and OnPurchaseFailed functions are triggered both at the same time.
One important bug: when there is an error on initialising the service (UnityPurchasing.Initialize) the OnInitializeFailed function is never called so I can't handle the error.

 

Hi John,

The ProcessPurchase with the OnPurchaseFailed at the same time I saw it few times, maybe it was related with some pending purchase or similar.
But the bug which made me move to downgrade to version 2.1.1 is the other bug. I have some issues when player disconnects his Google Play account and enters to game. In that case in v. 2.2.2 the plugin throws an error and it doesn't trigger the OnInitializeFailed function. I'm pretty sure if we try to Initialize the plugin without internet connection this error will appear as well.
So the point here is when the UnityPurchasing.Initialize fails the callback is not called and I can't handle the error.

 

Hi Jeff,

I'm not able to use ProcessPurchase, the UnityPurchasing.Initialize fails and I don't receive the callback on OnInitializeFailed.

 

In that case the problem was solved with the new version but I didn't check again the other issue about the ProcessPurchase and the OnPurchaseFailed triggered at the same time.