httrack warns that it couldn't create a temporary reference file when I use it
to fetch a Python script.

I run the httrack -g command to fetch the script in an empty directory and see
this output:

"""
$ httrack -g <http://sebsauvage.net/python/html2csv.py>
HTTrack3.47-21+libhtsjava.so.2 launched on Mon, 10 Feb 2014 20:47:02 at
<http://sebsauvage.net/python/html2csv.py>
(httrack -g <http://sebsauvage.net/python/html2csv.py> )

Information, Warnings and Errors reported for this mirror:
note:	the hts-log.txt file, and hts-cache folder, may contain sensitive
information,
	such as username/password authentication for websites mirrored in this
project
	do not share these files/folders if you want these information to remain
private

Mirror launched on Mon, 10 Feb 2014 20:47:02 by HTTrack Website
Copier/3.47-21+libhtsjava.so.2 [XR&CO'2013]
mirroring <http://sebsauvage.net/python/html2csv.py> with the wizard help..
20:47:32	Warning: 	Could not create temporary reference file for
sebsauvage.net/python/html2csv.py
1/2: sebsauvage.net/python/html2csv.py (6021 bytes) - OK
HTTrack Website Copier/3.47-21 mirror complete in 31 seconds : 1 links
scanned, 1 files written (6021 bytes overall) [6328 bytes received at 204
bytes/sec]
(No errors, 1 warnings, 0 messages)
Done.
Thanks for using HTTrack!
$ ls
html2csv.py
"""

The script downloads just fine.

Apart from the warning, everything apparently works.

This last appeared on the forum in 2009 and there was no clear resolution.
<http://forum.httrack.com/readmsg/20156/index.html>

To answer the questions from that thread:

I have plenty of space left on the disk.

I have full permissions on the directory.

It's not clear what the complete file name of the temporary reference file
should be.

My OS is Xubuntu 13.04 64-bit.