"Unhandled event loop exception", "java.lang.StackOverflowError" when I tried to open a view.

Dear Experts,

I am getting the following errors when I try to open a view/comp. controller in NWDS 7.31.

"Unhandled event loop exception",

"java.lang.StackOverflowError".

Note: I have imported the custom webdynpro DCs from NWDI 7.01 into NWDS 7.31.

Any idea on how to resolve these errors?

Regards,

Rambabu