Hi Radhika,
When your going to create view based data source based on tables. you need insert the other tables which are referenced from. other wise you will get error as you said above.
Example:
i need to create a view based 3 tables A,B and C.
A have fields which are refrence of table X.
in your view you have fields from 3 tables along the field which was ref of table X. so here you need add X table also in your view. other wise its throw an error.
pls check this below.
http://scn.sap.com/thread/3403303
http://scn.sap.com/message/14056114
Thanks