WARP Project Forums - Wireless Open-Access Research Platform

I am trying to generate a bitstream file with OFDM_ReferenceDesign_FPGAv2_v14.0_public with Xilinx XPS v.11.1. And I got the following errors:

IMP_NETLIST=FALSE (default) instances are not synthesized.
INSTANCE:ppc405_0 - C:\OFDM_ReferenceDesign_FPGAv2_v14.0_public\system.mhs line
148 - Running XST synthesis
INSTANCE:plb - C:\OFDM_ReferenceDesign_FPGAv2_v14.0_public\system.mhs line 165 -
Running XST synthesis
Access violation at address 004BF9F3 in module 'ZCentral.exe'. Read of address 00000000.


I copied the radio_controller, eeprom and warp_v4_userIO from the WARP edk_user_repository/WARP/pcores   to the project 'pcores' folder as in the following link
http://warp.rice.edu/forums/viewtopic.php?id=588
I didn't see any 'drivers' or 'sw_services' folder.

However, I still got the same errors. Please help me with this. Thanks a lot!