postinst script error

[vinhtu@gmx.net]

Hi,

I'm trying to install tetex-bin version 1.0.7+20001218 and am getting
this error:

Setting up tetex-bin (1.0.7+20001218-5) ...
mktexlsr: Updating /var/lib/texmf/ls-R... 
mktexlsr: Done.
/usr/bin/texconfig: No $TEXMFMAIN in texmf.cnf file.
/usr/bin/texconfig: set TEXMFCNF variable to the directory where teTeX's texmf.cnf file is in.
dpkg: error processing tetex-bin (--configure):
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 tetex-bin
E: Sub-process /usr/bin/dpkg returned an error code (1)

How should I make it install?

Thanks,
Vinh Tu