从2017年5月29日中午11点左右开始，我开始收到＆＃34;（400）错误请求＆＃34;我所有ItemSearch()次来电的错误。我正在使用C＃API并且已经成功地使用了一年多而没有任何问题。我的代码或配置没有改变，我已经能够在生产和开发中重现错误。根据IAM管理控制台，我的安全凭证似乎仍然有效，我还没有收到来自亚马逊的任何通知，表明我的帐户已被停用或任何此类性质。
这是我所有电话的回复：
System.ServiceModel.ProtocolException: The remote server returned an unexpected response: (400) Bad Request. ---> System.Net.WebException: The remote server returned an error: (400) Bad Request.
at System.Net.HttpWebRequest.GetResponse()
at System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
--- End of inner exception stack trace ---
Server stack trace:
at System.ServiceModel.Channels.HttpChannelUtilities.ValidateRequestReplyResponse(HttpWebRequest request, HttpWebResponse response, HttpChannelFactory`1 factory, WebException responseException, ChannelBinding channelBinding)
at System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at MyCode.com.amazonaws.ecs.AWSECommerceServicePortType.ItemSearch(ItemSearchRequest1 request)
还有其他人遇到过这种情况吗？
我确实检查了this very old thread，但我不相信它是如何相关的，因为它是如何突然冒出来的，并且已经长时间正常工作。