A sopc builder problem

Help!

Hello,everyone! I have a problem with sopc builder recently. I opened a standard project of nios,when i click the generate command. the information of the processing as follows:

Altera SOPC Builder Version 4.10 Build 181

Copyright © 1999-2004 Altera Corporation. All rights reserved.

# 2005.04.20 16:47:31 (*) mk_custom_sdk starting

# 2005.04.20 16:47:31 (*) Reading project D:/altera/kits/nios2/examples/verilog/niosII_cyclone_1c20/standard/std_1c20.ptf.

# 2005.04.20 16:47:32 (*) Finding all CPUs

# 2005.04.20 16:47:32 (*) Finding all available components

no install.ptf file found at d:/altera/quartus41/sopc_builder/bin/europa/europa_utils.pm line 1700.

Error in processing. System NOT successfully generated.

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what's wrong with me?