Unity IAP - Could not resolve type with token 01000025

Hi all,

I'm currently on the latest BETA build, I believe IAP were working before I upgraded, however I am now receiving a error within the editor.

I can't seem to find any help on this issue anywhere else. Anyone had the same problem? How can I fix this?

TypeLoadException: Could not resolve type with token 01000025 (from typeref, class/assembly SimpleJson.SimpleJson, UnityEngine, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null) UnityEngine.Purchasing.PurchasingManager.OnPurchaseSucceeded (System.String id, System.String receipt, System.String transactionId) (at /Users/stevenb/unity-src3/Extensions/UnityPurchasing/Runtime/Purchasing/PurchasingManager.cs:111) UnityEngine.Purchasing.JSONStore.OnPurchaseSucceeded (System.String id, System.String receipt, System.String transactionID) (at :0) UnityEngine.Purchasing.FakeStore.<>n__0 (System.String id, System.String receipt, System.String transactionID) (at :0) UnityEngine.Purchasing.FakeStore+<>c__DisplayClass15_0.b__0 (System.Boolean allow, UnityEngine.Purchasing.PurchaseFailureReason failureReason) (at :0) UnityEngine.Purchasing.FakeStore.FakePurchase (UnityEngine.Purchasing.ProductDefinition product, System.String developerPayload) (at :0) UnityEngine.Purchasing.FakeStore.Purchase (System.String productJSON, System.String developerPayload) (at :0) UnityEngine.Purchasing.JSONStore.Purchase (UnityEngine.Purchasing.ProductDefinition product, System.String developerPayload) (at :0) UnityEngine.Purchasing.PurchasingManager.InitiatePurchase (UnityEngine.Purchasing.Product product, System.String developerPayload) (at /Users/stevenb/unity-src3/Extensions/UnityPurchasing/Runtime/Purchasing/PurchasingManager.cs:60) UnityEngine.Purchasing.PurchasingManager.InitiatePurchase (UnityEngine.Purchasing.Product product) (at /Users/stevenb/unity-src3/Extensions/UnityPurchasing/Runtime/Purchasing/PurchasingManager.cs:38) Purchasing.BuyProductID (System.String mProductId) (at Assets/Scripts/Classes/Purchasing.cs:85) InitScreenStore+c__AnonStorey0.<>m__0 () (at Assets/Scripts/Classes/Screen Initialisation/Store/InitScreenStore.cs:59) UnityEngine.Events.InvokableCall.Invoke () (at C:/buildslave/unity/build/Runtime/Export/UnityEvent.cs:166) UnityEngine.Events.UnityEvent.Invoke () (at C:/buildslave/unity/build/Runtime/Export/UnityEvent_0.cs:58) UnityEngine.UI.Button.Press () (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Button.cs:36) UnityEngine.UI.Button.OnPointerClick (UnityEngine.EventSystems.PointerEventData eventData) (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Button.cs:45) UnityEngine.EventSystems.ExecuteEvents.Execute (UnityEngine.EventSystems.IPointerClickHandler handler, UnityEngine.EventSystems.BaseEventData eventData) (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/EventSystem/ExecuteEvents.cs:50) UnityEngine.EventSystems.ExecuteEvents.Execute[T] (UnityEngine.GameObject target, UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.ExecuteEvents+EventFunction1[T1] functor) (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/EventSystem/ExecuteEvents.cs:261) UnityEngine.EventSystems.EventSystem:Update()`