我正在尝试使用商店套件接收产品列表，但我不断收到异常：
未捕获的异常：NSInvalidArgumentException: *** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: 尝试从对象中插入 nil 对象[4]
这是来自控制台的堆栈跟踪：
0 CoreFoundation 0x2fa12feb <redacted> + 154
1 libobjc.A.dylib 0x3a1bfccf objc_exception_throw + 38
2 CoreFoundation 0x2f9514a3 <redacted> + 530
3 CoreFoundation 0x2f95126b <redacted> + 50
4 ninjaworld 0x016d09d4 +[StoreKitSerializationHelpers jsonStringFromProductArray:] + 1312
5 ninjaworld 0x016ceaf4 -[StoreKitManager productsRequest:didReceiveResponse:] + 532
6 StoreKit 0x321c4863 <redacted> + 466
7 libdispatch.dylib 0x3a6a7833 <redacted> + 10
8 libdispatch.dylib 0x3a6a781f <redacted> + 22
9 libdispatch.dylib 0x3a6a7777 <redacted> + 254
10 CoreFoundation 0x2f9dd8f1 <redacted> + 8
11 CoreFoundation 0x2f9dc1c5 <redacted> + 1300
12 CoreFoundation 0x2f946f4f CFRunLoopRunSpecific + 522
13 CoreFoundation 0x2f946d33 CFRunLoopRunInMode + 106
14 GraphicsServices 0x3484b663 GSEventRunModal + 138
15 UIKit 0x3229216d UIApplicationMain + 1136
16 ninjaworld 0x000dcb5c main + 288
17 ninjaworld 0x000dca38 start + 40
此异常发生在调用任何回调方法之前。
如果我使用本机 iOS 代码，产品列表将成功检索。插件可能有问题。请指导我如何调试此代码，因为 Prime31 不会公开他们的代码。
我为插件启用了日志。产品列表检索成功。在那之后的某处引发异常。
日志：
-[StoreKitManager requestProductData:]
2014-09-01 07:42:00.702 ninjaworld[2519:60b] SKProductsRequest sent with productIdentifiers: {(
"com.company.coinpack1",
"com.company.coinpack4",
"com.company.coinpack3",
"com.company.coinpack2",
"com.company.coinpack5"
)}
2014-09-01 07:42:07.654 ninjaworld[2519:60b] -[StoreKitManager productsRequest:didReceiveResponse:]
2014-09-01 07:42:07.658 ninjaworld[2519:60b] response.products.count: 5
2014-09-01 07:42:07.661 ninjaworld[2519:60b] response.products: (
"<SKProduct: 0x16df4ca0>",
"<SKProduct: 0x16df4e10>",
"<SKProduct: 0x16df5400>",
"<SKProduct: 0x16df54a0>",
"<SKProduct: 0x16df5670>"
)
//Exception raised after that
Unity 代码（仅显示相关代码）
void Start () {
productsIDs = new string[]
{
"com.company.coinpack1",
"com.company.coinpack2",
"com.company.coinpack3",
"com.company.coinpack4",
"com.company.coinpack5"
};
OnEnable ();
StoreKitBinding.requestProductData(productsIDs);
}
void OnEnable()
{
// Listens to all the StoreKit events. All event listeners MUST be removed before this object is disposed!
StoreKitManager.transactionUpdatedEvent += transactionUpdatedEvent;
//StoreKitManager.productPurchaseAwaitingConfirmationEvent += productPurchaseAwaitingConfirmationEvent;
StoreKitManager.purchaseSuccessfulEvent += purchaseSuccessfulEvent;
StoreKitManager.purchaseCancelledEvent += purchaseCancelledEvent;
StoreKitManager.purchaseFailedEvent += purchaseFailedEvent;
StoreKitManager.productListReceivedEvent += productListReceivedEvent;
StoreKitManager.productListRequestFailedEvent += productListRequestFailedEvent;
StoreKitBinding.enableHighDetailLogs (true);
// StoreKitManager.restoreTransactionsFailedEvent += restoreTransactionsFailedEvent;
// StoreKitManager.restoreTransactionsFinishedEvent += restoreTransactionsFinishedEvent;
}
void productListReceivedEvent( List<StoreKitProduct> productList )
{
if (productList == null) {
print("**** It's null!!!!");
return;
}
Debug.Log( "productListReceivedEvent. total products received: " + productList.Count );
// print the products to the console
foreach( StoreKitProduct product in productList )
Debug.Log( product.ToString() + "\n" );
}
void productListRequestFailedEvent( string error )
{
Debug.Log( "productListRequestFailedEvent: " + error );
}
