When I use the CORE Generator tool to generate a new core or regenerate an existing core, errors similar to the following occur:
"ERROR:coreutil - Exception caught when running XST synthesis!
ERROR:coreutil - Failure to generate output products
ERROR:coreutil:576 - An error occurred while running Java. Please examine the console or coregen log file for a specific IP related error.
For more information please search the Xilinx Answers Database for this error: http://www.xilinx.com/support
ERROR:coreutil - XST has returned an error: ERROR:Xst:2996 - XST patch Expired."
How can I resolve it?
An XST file that is distributed with ISE 11.2/11.3 and 11.4 software for use with the CORE Generator tool expired on December 15, 2009.
When CORE Generator calls XST in the background to generate the core, XST exits because a time-stamp in the file has inadvertently expired.
Following is the current known list of cores that are affected by this issue:
To fix this issue, complete the following steps:
To test this patch, run the CORE Generator tool again; the core should generate without any errors.
If you have further questions, contact Xilinx Technical Support at: