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POKeep getting 21002 'java.lang.NullPointerException' on Apple's VerifyReceipt
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11085847
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2012-06-18T15:18:07.110
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2012-10-02T16:27:25.037
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Body
I keep getting 21002 'java.lang.NullPointerException' errors from Apple when I try to test my In-App Purchases in the sandbox. This is what I have done: <ul> <li>Set up the In-App Purchase products in iTunes Connect. I can successfully retrieve them via StoreKit.</li> <li>Set up test user in iTunes Connect.</li> <li>Application starts up, downloads the available In-App Purchase products, I trigger the In-App Purchase and Apple responds with the transactionReceipt, which I base64-encode on the iPhone and send to my C#/ASP.NET server.</li> <li>The server puts the received string into JSON (I tried it both with <code>NewtonSoft.Json</code> and manually) and sends the JSON to Apple:</li> </ul> <code>var json = "{ 'receipt-data': '" + receipt + "'}";</code> OR: <code>var json = new JObject(new JProperty("receipt-data", receipt)).ToString();</code> and then: <pre><code>var webRequest = System.Net.HttpWebRequest.Create("https://sandbox.itunes.apple.com/verifyReceipt"); webRequest.ContentType = "text/plain"; webRequest.Method = "POST"; byte[] byteArray = Encoding.UTF8.GetBytes(receipt); webRequest.ContentLength = byteArray.Length; using (var stream = webRequest.GetRequestStream()) { stream.Write(byteArray, 0, byteArray.Length); stream.Flush(); } var resp = webRequest.GetResponse(); if (resp != null) { using (var sr = new System.IO.StreamReader(resp.GetResponseStream())) { var result = sr.ReadToEnd().Trim(); var iapResponse = Newtonsoft.Json.JsonConvert.DeserializeObject<AppleIapResponse>(result); // always getting '21002' 'java.lang.NullPointerException' } } </code></pre> I tried everything: changing the ContentType, the JSON formatting, the encoding.... Any hints?
Tags
<.net><ios><xamarin.ios><in-app-purchase><itunesconnect>
Title
Keep getting 21002 'java.lang.NullPointerException' on Apple's VerifyReceipt
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