How to export a ISCF (Intel Schematic Checking Format) file from 17.2 Cadence/Allegro PCB Designer ?

It worked for me after specifying the -temp folder location, as shown below:

C:\Temp\dsn\connorsville_fab_x_001_archive>geniscfnetlist

Project file missing.
Usage:
geniscfnetlist -proj <project file name> -o <iscf file location> [-temp <log file location> -compprops <comma separated list of propnames>] [-pinprops <comma separated list of propnames>] [-groundnets <comma separated list of groundnetn

C:\Temp\dsn\connorsville_fab_x_001_archive>geniscfnetlist -proj connorsville_fab_x_001.cpm -o connorsville_fab_x_001.txt
Cannot open the list file 'geniscfnetlist.log' !!!

C:\Temp\dsn\connorsville_fab_x_001_archive>md tmp

C:\Temp\dsn\connorsville_fab_x_001_archive>geniscfnetlist -proj connorsville_fab_x_001.cpm -o connorsville_fab_x_001.txt -temp tmp

Generate ISCF Netlist 17.4-2019 S014 (3914599) 1/24/2021
Copyright 2011 Cadence Design Systems, Inc

Reading File : C:/Temp/dsn/connorsville_fab_x_001_archive/worklib/connorsville_fab_x_001/packaged/pstchip.dat(00:00:00.06)
Reading File : C:/Temp/dsn/connorsville_fab_x_001_archive/worklib/connorsville_fab_x_001/packaged/pstxprt.dat(00:00:00.02)
Reading File : C:/Temp/dsn/connorsville_fab_x_001_archive/worklib/connorsville_fab_x_001/packaged/pstxnet.dat(00:00:00.01)
Reading File : C:/Temp/dsn/connorsville_fab_x_001_archive/worklib/connorsville_fab_x_001/packaged/pstcmdb.dat(00:00:00.34)

Writing Component section...
Finished writing Component section.
Writing Pins section...
Finished writing Pins section.
Writing E-Nets section...
Finished writing E-Nets section.
Writing Buses section...
Finished writing Buses section.
Writing Nets section...
Finished writing Nets section.
Writing Ground section...
Finished writing Ground section.
Writing Power section...
Finished writing Power section.
Generate ISCF Netlist run on Jun 1 13:51:30 2021
DESIGN NAME : 'CONNORSVILLE_FAB_X_001'
PACKAGING ON 01-Jun-2021 AT 09:52:52

No error detected
No oversight detected
No warning detected

cpu time 0:00:48
elapsed time 0:00:00

C:\Temp\dsn\connorsville_fab_x_001_archive>gvim connorsville_fab_x_001.txt

C:\Temp\dsn\connorsville_fab_x_001_archive>

C:\Temp\dsn\connorsville_fab_x_001_archive>type tmp\geniscfnetlist.log
Starting to read C:/Temp/dsn/connorsville_fab_x_001_archive/worklib/connorsville_fab_x_001/packaged/pstchip.dat
Finished reading C:/Temp/dsn/connorsville_fab_x_001_archive/worklib/connorsville_fab_x_001/packaged/pstchip.dat (00:00:00.06)
Starting to read C:/Temp/dsn/connorsville_fab_x_001_archive/worklib/connorsville_fab_x_001/packaged/pstxprt.dat
Finished reading C:/Temp/dsn/connorsville_fab_x_001_archive/worklib/connorsville_fab_x_001/packaged/pstxprt.dat (00:00:00.02)
Starting to read C:/Temp/dsn/connorsville_fab_x_001_archive/worklib/connorsville_fab_x_001/packaged/pstxnet.dat
Finished reading C:/Temp/dsn/connorsville_fab_x_001_archive/worklib/connorsville_fab_x_001/packaged/pstxnet.dat (00:00:00.01)
Starting to read C:/Temp/dsn/connorsville_fab_x_001_archive/worklib/connorsville_fab_x_001/packaged/pstcmdb.dat
Finished reading C:/Temp/dsn/connorsville_fab_x_001_archive/worklib/connorsville_fab_x_001/packaged/pstcmdb.dat (00:00:00.34)

Generate ISCF Netlist run on Jun 1 13:51:30 2021
DESIGN NAME : 'CONNORSVILLE_FAB_X_001'
PACKAGING ON 01-Jun-2021 AT 09:52:52

CROSS_REFERENCE OFF
DIRECTORIES <none>
FEEDBACK OFF
LIBRARIES 'connorsville_fab_x_001_lib' 'standard' 'dev_fconn' 'dev_misc'
'mstr_conn' 'mstr_digital' 'mstr_discrete' 'mstr_fconn'
'mstr_memory' 'mstr_sconn' 'mstr_standard' 'mstr_symbols'
'mstr_ttl' 'mstr_vreg' 'pae_devlib'
MASTER_LIBRARIES <none>
MAX_ERRORS 500
OVERSIGHTS ON
SINGLE_NODE_NETS ON
SUPPRESS <none>
WARNINGS ON

No error detected
No oversight detected
No warning detected

cpu time 0:00:48
elapsed time 0:00:00

C:\Temp\dsn\connorsville_fab_x_001_archive>

This worked on my 17.2!  Thank you David!

This worked on my 17.2!  Thank you David!