Web Service is giving error mesage while generating WSDL

I Created Real Time Job and configured as Web Service. But while using VIEW WSDL button I am getting following error message

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I tried all the options which are available in forum. Can any body has correct solution. I am not sure about the configuration settings. But when I worked on the previous version of DS i am able to test this correct but i am facing this issue after i started using DS 4.2

I installed DS server on my personal laptop, and installed following things

BI 4.2 SP1 + DS 4.2 SP1 + Information Steward 4.2 SP1

I am using MS SQL Server 2008 R2 as database server.

When i used 4.1 DS with ISP, I was able to test this without any issues.

Do I need to do any configuration changes if i am using BI platform ?

Thanks