Error compiling Multifunction RIO - Disk access failed.

Hello,

I am using a NI PXI-7852R R Series Multifunction RIO with Virtex-5 LX50 FPGA.

When I compile I get an error message saying:

FATAL_ERROR:HDLParsers:vhpsave.c:71:$Id: vhpsave.c,v 1.12 2005/08/22 17:03:34 mikev Exp $ - Disk access failed.   Process will terminate. For more information on this error, please consult the Answers Database or open a WebCase with this project attached at http://www.xilinx.com/support.

Can not Close File [10/0]!

ERROR:Xflow - Program xst returned error code 1. Aborting flow execution...

The full messages are attached. Could anyone help me understand what the problem is please?

Thanks,

Charlotte