Design dff has been optimized and fit into device XC95108-7-PC84.
ERROR:Cpld:1244 - Unexpected Exceptions
FATAL_ERROR:Cpldortability/export/Port_Main.h:127:1.126.30.1 - This
   application has discovered an exceptional condition from which it cannot
   recover.  Process will terminate.  To resolve this error, please consult the
   Answers Database and other online resources at http://support.xilinx.com. If
   you need further assistance, please open a Webcase by clicking on the
   "WebCase" link at http://support.xilinx.com
ERROR: Fit failed
Reason:
Process "Fit" did not complete.