SoapUI throws Unsupported AMF version for the AMF request

Hi All,

I have a flex application, which returns a Login window If i do a GET request.
I am running a AMF request for the same. But teh SoapUi throws an error for unsupported version
{{{
Mon Jan 31 19:35:15 IST 2011:ERROR:An error occured [flex.messaging.MessageException: Unsupported AMF version 15,393.], see error log for details
}}}

Please tell me how to rectify this error.

Thanks