IAP 2.2.0 Error after purchase

Hi! Yesterday I updated IAP plugin to the latest version and now I am getting next error:

UnityException: Transaction can only be called from the main thread. Constructors and field initializers will be executed from the loading thread when loading a scene. Don't use this function in the constructor or field initializers, instead move initialization code to the Awake or Start function.

 

Here is my code. It works fine with IAP version 2.1.1

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.Purchasing;
3.  
4. public class MyIAPManager : MonoBehaviour, IStoreListener {
5.  
6.     private IStoreController controller;
7.     private IExtensionProvider extensions;
8.  
9.     public void Start () {
10.         var builder = ConfigurationBuilder.Instance(StandardPurchasingModule.Instance());
11.         builder.AddProduct("coins_099", ProductType.Consumable);
12.         UnityPurchasing.Initialize (this, builder);
13.     }
14.  
15.     /// <summary>
16.     /// Called when Unity IAP is ready to make purchases.
17.     /// </summary>
18.     public void OnInitialized (IStoreController controller, IExtensionProvider extensions)
19.     {
20.         this.controller = controller;
21.         this.extensions = extensions;
22.         controller.InitiatePurchase("coins_099");
23.     }
24.  
25.     /// <summary>
26.     /// Called when Unity IAP encounters an unrecoverable initialization error.
27.     ///
28.     /// Note that this will not be called if Internet is unavailable; Unity IAP
29.     /// will attempt initialization until it becomes available.
30.     /// </summary>
31.     public void OnInitializeFailed (InitializationFailureReason error)
32.     {
33.     }
34.  
35.     /// <summary>
36.     /// Called when a purchase completes.
37.     ///
38.     /// May be called at any time after OnInitialized().
39.     /// </summary>
40.     public PurchaseProcessingResult ProcessPurchase (PurchaseEventArgs e)
41.     {
42.         return PurchaseProcessingResult.Complete;
43.     }
44.  
45.     /// <summary>
46.     /// Called when a purchase fails.
47.     /// </summary>
48.     public void OnPurchaseFailed (Product i, PurchaseFailureReason p)
49.     {
50.     }
51. }

 

Same behavior when I call controller.InitiatePurchase("coins_099") in button handler

 

I checked your Sample IAP Project and found out that issue is caused by Development Build setting. When it is set to true I see error in console both in your and my projects, when it is disabled - everything works fine.
With version 2.1.1 it worked fine in both build - Development and Regular

 

Thanks! It would be great it they could fix it ASAP, because I spent a lot of time seeking for previous version of this package

 

Thanks a lot!