Unity IAP Xcode NullReferenceException

I am trying to integrate Unity IAP to my project targeted for iOS and Android. I have followed all the instructions and also completed apple tax contracts etc. But when I run the project on iphone through xcode, the console shows a nullreferenceexception. I have pasted the xcode logs below. I have highlighted the error in bold. This same error happens when I run an empty project with just Unity plugin enabled and running the IAPDemo Scene. This happens when UnityPurchasing.Initialize(this, builder) is called. The purchase script is loaded with the main screen. I am not even calling any Buy product function. This happens at initialise itself. Can anyone let me know what this is? Should I continue forward with this?Will it cause an issue? Is it an iOS version issue?I am using iOS 10.3.3 for testing purposes? Could that be the problem?

Purchase script same as the one in Unity sample.
Unity Version - 2018.1.0f2 Personal
Unity IAP Version - 1.21
Device - iPhone 6s

XCODE LOG -

[DYMTLInitPlatform] platform initialization successful
UnityIAP UnityEarlyTransactionObserver: Created

UnityIAP UnityEarlyTransactionObserver: Registered for lifecycle events
Built from '2018.1/staging' branch, Version '2018.1.0f2 (d4d99f31acba)', Build type 'Release', Scripting Backend 'il2cpp'
-> registered mono modules 0x100de3960
-> applicationDidFinishLaunching()
Metal GPU Frame Capture Enabled
Metal API Validation Disabled
libMobileGestalt MobileGestalt.c:550: no access to InverseDeviceID (see <rdar://problem/11744455>)
UnityIAP UnityEarlyTransactionObserver: Added to the payment queue
-> applicationDidBecomeActive()
GfxDevice: creating device client; threaded=1
Initializing Metal device caps: Apple A9 GPU
Initialize engine version: 2018.1.0f2 (d4d99f31acba)
UnloadTime: 3.241541 ms
UnityIAP Version: 1.21
UnityEngine.Purchasing.StandardPurchasingModule:Instance(AppStore)
IAPDemo:Awake()

(Filename: /Users/builduser/buildslave/unity/build/Runtime/Export/Debug.bindings.h Line: 43)

NullReferenceException: A null value was found where an object instance was required.
at UnityEngine.AndroidJavaObject.Dispose (Boolean disposing) [0x00000] in <filename unknown>:0
at UnityEngine.AndroidJavaObject.Finalize () [0x00000] in <filename unknown>:0
UnityEngine.UnhandledExceptionHandlerrintException(String, Exception)
UnityEngine.UnhandledExceptionHandler:HandleUnhandledException(Object, UnhandledExceptionEventArgs)

(Filename: currently not available on il2cpp Line: -1)

NullReferenceException: A null value was found where an object instance was required.
at UnityEngine.AndroidJavaObject.Dispose (Boolean disposing) [0x00000] in <filename unknown>:0
at UnityEngine.AndroidJavaObject.Finalize () [0x00000] in <filename unknown>:0
UnityEngine.UnhandledExceptionHandlerrintException(String, Exception)
UnityEngine.UnhandledExceptionHandler:HandleUnhandledException(Object, UnhandledExceptionEventArgs)

(Filename: currently not available on il2cpp Line: -1)

Setting up 1 worker threads for Enlighten.
Thread -> id: 16f30b000 -> priority: 1
Using configuration builder objects
UnityEngine.Purchasing.StoreCatalogImpl:handleCachedCatalog(Action`1)
UnityEngine.Purchasing.<Process>d__4:MoveNext()
UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)

(Filename: /Users/builduser/buildslave/unity/build/Runtime/Export/Debug.bindings.h Line: 43)

UnityIAP: Requesting 3 products
UnityIAP: Requesting product data...
UnityIAP: Received 0 products
UnityIAP: No App Receipt found
UnityIAP: No App Receipt found

Unavailable product 100.gold.coins -100.gold.coins
UnityEngine.Purchasing.PurchasingManager:CheckForInitialization()
UnityEngine.Purchasing.PurchasingManager:OnProductsRetrieved(List`1)
UnityEngine.Purchasing.AppleStoreImpl:OnProductsRetrieved(String)
UnityEngine.Purchasing.Extension.UnityUtil:Update()

(Filename: /Users/builduser/buildslave/unity/build/Runtime/Export/Debug.bindings.h Line: 43)

Unavailable product 500.gold.coins -500.gold.coins
UnityEngine.Purchasing.PurchasingManager:CheckForInitialization()
UnityEngine.Purchasing.PurchasingManager:OnProductsRetrieved(List`1)
UnityEngine.Purchasing.AppleStoreImpl:OnProductsRetrieved(String)
UnityEngine.Purchasing.Extension.UnityUtil:Update()

(Filename: /Users/builduser/buildslave/unity/build/Runtime/Export/Debug.bindings.h Line: 43)

Unavailable product sword -sword
UnityEngine.Purchasing.PurchasingManager:CheckForInitialization()
UnityEngine.Purchasing.PurchasingManager:OnProductsRetrieved(List`1)
UnityEngine.Purchasing.AppleStoreImpl:OnProductsRetrieved(String)
UnityEngine.Purchasing.Extension.UnityUtil:Update()

(Filename: /Users/builduser/buildslave/unity/build/Runtime/Export/Debug.bindings.h Line: 43)

Billing failed to initialize!

IAPDemo:OnInitializeFailed(InitializationFailureReason)
UnityEngine.Purchasing.PurchasingManager:CheckForInitialization()
UnityEngine.Purchasing.PurchasingManager:OnProductsRetrieved(List`1)
UnityEngine.Purchasing.AppleStoreImpl:OnProductsRetrieved(String)
UnityEngine.Purchasing.Extension.UnityUtil:Update()

(Filename: /Users/builduser/buildslave/unity/build/Runtime/Export/Debug.bindings.h Line: 43)

No products available for purchase!
UnityEngine.Purchasing.PurchasingManager:CheckForInitialization()
UnityEngine.Purchasing.PurchasingManager:OnProductsRetrieved(List`1)
UnityEngine.Purchasing.AppleStoreImpl:OnProductsRetrieved(String)
UnityEngine.Purchasing.Extension.UnityUtil:Update()

(Filename: /Users/builduser/buildslave/unity/build/Runtime/Export/Debug.bindings.h Line: 43)

UnityIAP Promo: Clearing promo product metadata
UnityEngine.Purchasing.PromorovideProductsToAds(HashSet`1)
UnityEngine.Purchasing.AppleStoreImpl:OnProductsRetrieved(String)
UnityEngine.Purchasing.Extension.UnityUtil:Update()

(Filename: /Users/builduser/buildslave/unity/build/Runtime/Export/Debug.bindings.h Line: 43)

UnityIAP: Add transaction observer
UnityIAP UnityEarlyTransactionObserver: Request to initiate queued payments
[App] if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction
[App] if we're in the real pre-commit handler we can't actually add any new fences due to CA restriction

 

I am finding the same issue running 2017.4.2f2 with UnityPurchasing 1.21.0 on iOS 11.2.2. The issue appears when getting a ConfigurationBuilder instance, in my case:

Code (CSharp):

1. var builder = ConfigurationBuilder.Instance(StandardPurchasingModule.Instance());

My system appears to initialise regardless of the issue, but it's not great!

 

@alexanderperrin I had the issue at ConfigurationBuilder.Instance(StandardPurchasingModule.Instance()) as well initially. But that was when my purchaser script was in another script folder in my project. When I shifted the purchaser script to the folder location in UnityPurchasing/Script the error went. But then the error started occurring at UnityPurchasing.Initialize(this, builder). Can you check this at your side as well?

 

Anyone know what this UnityEngine.AndroidJavaObject.Dispose (Boolean disposing) [0x00000] is? Someone please help. Its urgent.

NullReferenceException: A null value was found where an object instance was required.
at UnityEngine.AndroidJavaObject.Dispose (Boolean disposing) [0x00000] in <filename unknown>:0
at UnityEngine.AndroidJavaObject.Finalize () [0x00000] in <filename unknown>:0

 

I'll try to give it a go today, however moving my IAP script breaks a few other things so it might take some time.

 

@rmjfox @alexanderperrin Can you also test with IAP 1.20 ? We've had some reports of issues with 1.21 https://forum.unity.com/threads/unity-iap-previous-versions.527432/

 

@JeffDUnity3D I am able to confirm that the error does not occur on 1.20!

 

Glad it's working on 1.20 for you. We are still investigating with respect to 1.21

 

Are you kidding me? Just updated and built to iOS and getting this. Why would you even keep this on the asset store when you KNOW it has these issues? The changelog even states that NO CHANGES has been made to IAP other than adding support for the UDP module.

@JeffDUnity3D

 

the least thing I ever wanted was have to be worried about Unity IAP updates... this problem is affecting millions!! i am now rolling back to 1.20 (hopefully I will never have update to any newer version unless strictly necessary), lesson learned.

 

Finally got around to check this with previous version of Unity IAP. I can also confirm that it doesn't occur on 1.20. It was my first time with IAP and this got me really worried as I had started off with version 1.21. So lost some precious time there trying to fix this issue. And since it only happened with the new version, it hadn't been previously mentioned anywhere. Initially I went ahead with it after @alexanderperrin pointed out that it did seem to initialise. And even though everything seemed to work normally, it kept me a bit skeptical as I wouldn't want any error especially in this part of the project. But now with version 1.20, that exception has gone and everything seems to be fine and I am just glad that it is. Thanks for the help @alexanderperrin @JeffDUnity3D

 

Have this issue on Android with IAP 1.21

 

Same, as @rmjfox...I've rolled back to 1.20 and now it's fine. So, please fix 1.21 version.

 

Have the same problem , rolling back to 1.20 "solve" the issue but give me some other error ("MissingMethodException: Method not found: 'UnityEngine.VR.VRSettings.get_enabled'.") when clicking the purchasing button. Any solutions for 1.21?

 

The VR error is a known issue if you do not choose to "Update API, did you make a backup?" https://forum.unity.com/threads/iap-troubleshooting-remove-and-reinstall-unity-iap.511747/ There is no reason for you to be using 1.21 if you are not releasing in China to special stores. The next release should be available in a few weeks.

 

@JeffDUnity3D when I downgraded to 1.20, I got a build error for android:

[!] Google Api Error: apkPermissionsRequirePrivacyPolicy: The apk has permissions that require a privacy policy set for the app, e.g: android.permission.READ_PHONE_STATE.[0m