Error in creating flash files-**Error in creating intermediate files **

Hi Friends ,

I'm getting error while generating flash files using sof2flash command

i used "sof2flash --input=TR4.sof --output=TR4_hw.flash --offset=0x00020000 --pfl --optionbit=0x18000 --programmingmode=FPP"

then i'm seeing the following errors

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

Info: Running Quartus II 32-bit Convert_programming_file

Info: Version 11.1 Build 173 11/01/2011 SJ Full Version

Info: Copyright (C) 1991-2011 Altera Corporation. All rights reserved.

Info: Your use of Altera Corporation's design tools, logic functions

Info: and other software and tools, and its AMPP partner logic

Info: functions, and any output files from any of the foregoing

Info: (including device programming or simulation files), and any

Info: associated documentation or information are expressly subject

Info: to the terms and conditions of the Altera Program License

Info: Subscription Agreement, Altera MegaCore Function License

Info: Agreement, or other applicable license agreement, including,

Info: without limitation, that your use is for the sole purpose of

Info: programming logic devices manufactured by Altera and sold by

Info: Altera or its authorized distributors. Please refer to the

Info: applicable agreement for further details.

Info: Processing started: Mon May 27 17:32:49 2013

Info: Command: quartus_cpf -c tr4_hw.pof tr4_hw.hexout

Info: Quartus II 32-bit Convert_programming_file was successful. 0 errors, 0 war

nings

Info: Peak virtual memory: 410 megabytes

Info: Processing ended: Mon May 27 17:33:33 2013

Info: Elapsed time: 00:00:44

Info: Total CPU time (on all processors): 00:00:32

java.lang.nullpointerexception

at com.altera.utilities.launcher.read(launcher.java:307)

at com.altera.utilities.launcher.read(launcher.java:362)

at com.altera.sof2flash.pflflashgenerator.converthextosrec(pflflashgener

ator.java:241)

at com.altera.sof2flash.pflflashgenerator.pflgen(pflflashgenerator.java:

37)

at com.altera.sof2flash.sof2flash.<init>(sof2flash.java:122)

at com.altera.sof2flash.sof2flash.main(sof2flash.java:77)

may 27, 2013 5:33:33 pm - (severe) sof2flash: error creating intermediate files,

exiting

And not able to generate flash files ..

Please friends help me out ..I'm using quartusII 11.1 & Nios II 11.1 EDS , windows 7 32 bit OS..

Thanks & Regards,

Rohit