help about flash programmer

Does anyone know what a EPCS identifier is ? When I was erasing my EPCS device I got the following message:

# !/bin/sh

#

# This file was automatically generated by the Nios II IDE Flash Programmer.

#

# It will be overwritten when the flash programmer options change.

#

cd E:/cycloneII_sopc_OK/memory_test/Debug

# Creating .flash file for the FPGA configuration

"$SOPC_KIT_NIOS2/bin/sof2flash" --epcs --input="E:/cycloneII_sopc_OK/cyclone.sof

" --output="cyclone.flash"

Info: *******************************************************************

Info: Running Quartus II Convert_programming_file

Info: Command: quartus_cpf --no_banner --convert --device=EPCS64 --option=cyclon

e.opt E:/cycloneII_sopc_OK/cyclone.sof cyclone.pof

Info: Quartus II Convert_programming_file was successful. 0 errors, 0 warnings

Info: Allocated 53 megabytes of memory during processing

Info: Processing ended: Thu Sep 06 13:26:04 2007

Info: Elapsed time: 00:00:06

Info: *******************************************************************

Info: Running Quartus II Convert_programming_file

Info: Command: quartus_cpf --no_banner --convert cyclone.pof cyclone.rpd

Info: Quartus II Convert_programming_file was successful. 0 errors, 0 warnings

Info: Allocated 51 megabytes of memory during processing

Info: Processing ended: Thu Sep 06 13:26:10 2007

Info: Elapsed time: 00:00:06

# Programming flash with the FPGA configuration

"$SOPC_KIT_NIOS2/bin/nios2-flash-programmer" --epcs --base=0x01004800 --sidp=0x0

1005158 --id=508897094 --timestamp=1189054008 --instance=0 "cyclone.flash"

Using cable "ByteBlasterMV [LPT1]", device 1, instance 0x00

Resetting and pausing target processor: OK

Reading System ID at address 0x01005158: verified

No EPCS layout data - looking for section [EPCS-FF]

Unable to use EPCS device

Leaving target processor paused

# Creating .flash file for the project

"$SOPC_KIT_NIOS2/bin/elf2flash" --epcs --after="cyclone.flash" --input="memory_t

est.elf" --output="epcs_controller.flash"

# Programming flash with the project

"$SOPC_KIT_NIOS2/bin/nios2-flash-programmer" --epcs --base=0x01004800 --sidp=0x0

1005158 --id=508897094 --timestamp=1189054008 --instance=0 "epcs_controller.flas

h"

Using cable "ByteBlasterMV [LPT1]", device 1, instance 0x00

Resetting and pausing target processor: OK

Reading System ID at address 0x01005158: verified

No EPCS layout data - looking for section [EPCS-FF]

Unable to use EPCS device

Leaving target processor paused

Can anyone help me with this problem ?