For future visitors to this bug, Harald and I discussed this on IRC.
His comments included that taskjuggler is kde3, not kde4, so help won't work any more anyway.
A work-around, to be able to read the help is:
cd /usr/share/doc/kde4/HTML/en/ sudo ln -s /usr/share/doc/kde/HTML/en/taskjuggler . khelpcentre -> Then browse to Application Manuals -> Office -> Taskjuggler
For future visitors to this bug, Harald and I discussed this on IRC.
His comments included that taskjuggler is kde3, not kde4, so help won't work any more anyway.
A work-around, to be able to read the help is:
cd /usr/share/ doc/kde4/ HTML/en/ doc/kde/ HTML/en/ taskjuggler .
sudo ln -s /usr/share/
khelpcentre
-> Then browse to Application Manuals -> Office -> Taskjuggler