HTTP Request Error in Flex

I am getting a HTTP request error in Flex. Not always but sometimes. However I do see that the HTTP request was successfully sent to the backend.

I am printing the "HttpService.lastResult.Error" which has this String.

How can I get the root cause of this problem ? Apart from "HttpService.lastResult.Error" are there any other Flex Objects whose state can help me get more information as to why the Request Failed ?

Are there an开发者_如何转开发y Flex related debugging tools ?? Is there a way to print the Trace of every HTTP request that Flex makes ?

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Have you tried the FaultEvent and catch it, it has some kind of message.

In Flash builder 4 there is a Network Monitor that could really help!