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Registered: ‎11-20-2007

Process "Synthesize" failed

i am getting  this error when iam synthesize the code please help me.
 
FATAL_ERROR:Xst:Portability/export/Port_Main.h:127:1.16 - 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
 
i attached the code and
package is
 
 
package raju is 
 constant n:integer:=3;  --no of nodes
 constant inf:integer:=99;  ---no connection
 type x is (per,ten);   ---perm/fixed  ,,enum type
 
type pre is array(0 to n-1) of integer range -2 to 5;
type len is array(0 to n-1) of integer range 0 to 99;
type lab is array(0 to n-1) of integer range 0 to 1;

  type mat is array (0 to n-1, 0 to n-1) of integer range -2 to 99;
 type mat1 is array (0 to n-1) of integer range -2 to 99; 
 -- type mat is array (0 to n-1, 0 to n-1) of integer range -2 to 99;
-- type mat1 is array (0 to n-1) of integer range -2 to 99;
end raju;
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