The given key was not present in the dictionary - Microsoft Sync Framework

hello, I am currently trying to set up a database using microsoft sync
framework, I can get the data synchronization dialog box up and running as
well, I am able to set up the databases with out error, but when i click ok
to complete it, a dialog box comes up saying "the given key was not
presented in the dictionary".
I am not able to proceed further.
Please assist me.

Thanks in Advance
Gyanendar