Training - Delta Flight Wsdl - Start up error ([Fatal Error] delta?wsdl:1:3...)

All,

I created a simple flow with Web service consumer. In web service consumer i used "http://mu.mulesoft-training.com/essentials/delta?wsdl" as WSLD URL, it parsed the wsdl and loaded the service, port and address with any issues. Once it is completed, i selected findFlight as an operation, saved and started the server. But i see start up error as shown below and not able to proceed further. any one tell me what is wrong with the wldl (wsdl url is from training kit).

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FULL TEXT IN ATTACHMENT [89843-more.txt]