Portal Integration Problem

Hi,

i developed an iView in ABAP Web Dybpro. Now i want to integrate this view with Portal. As suggested in the link [http://help.sap.com/saphelp_nw04s/helpdata/en/77/3545415ea6f523e10000000a155106/frameset.htm

] i did the integration. But when i am executing the iView in Portal it is showing some errors to define more fields.

Please suggest.. whats going wrong.

Thanks & Regards,

Dhanunjay Reddy