VS2012 errors out on View Defpermission when doing a schema compare

Hello,

I am trying to do a schema compare and data compare via VS2012 and I am getting below error:

The reverse engineering operation cannot continue because you do not have View Definition permission on the 'Target' database.

Whats interesting is I created a viewdefinition role and added the group(to which the user belongs) to the role. However I dont get the error if I make the group the dbowner. Is this a bug?

Thanks