HTMLDOC Problem:

Htmldoc produced no pdf-output.
Commandline:

/usr/bin/htmldoc -t pdf12  --webpage -f /home/lihq/www.lihq.com/docs/typo3temp/hd_rhaH60 - 2>/home/lihq/www.lihq.com/docs/typo3temp/se_ldwvj6

This is the (stderr) output of the htmldoc command without the htmldoc_append parameters:
If you see no errors here please check your htmldoc_append parameters too.

sh: /usr/bin/htmldoc: not found