Error while migrating DHCP to windows 2008 R2

The following error reported while importing DHCP database to windows 2008 R2 from windows 2003 server.

“Error while reporting option “15.”

This Option conflicts with the existing option “An internal error occurred” .

Resolution :

1) Stop the DHCP server service on windows 2008 server

2) Delete/rename the existing DHCP.mdb file %systemroot%\system32\dhcp folder

3) Try to import dhcp now.