The following are possible causes:
- If non-ASCII characters are in any of the XPS supporting files (MPD, MDD, etc.).
- If the EDK project was migrated from 9.1 directly to 11.1. You can work around this by going into the __xps directory and deleting the "system.gui" file.
- If you have the EDK tools installed on a network drive, refer to
(Xilinx Answer 32253).
This problem has been fixed in EDK 11.2, available at:
http://www.xilinx.com/support/download/index.htm