When you install games for KDE in Ubuntu (Gnome) and then you search for a guidelines in the game help, you will get “Could not find service ‘khelpcenter’”. Because, you don’t have KDE Help Center in your gnome. This program have to be installed separately.
The installation is very easy.
taufanlubis@toshiba:~$ sudo apt-get install khelpcenter
Reading package lists… Done
Building dependency tree
Reading state information… Done
The following NEW packages will be installed:
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 2318kB of archives.
After unpacking 4080kB of additional disk space will be used.
Get:1 http://archive.ubuntu.com gutsy-updates/main khelpcenter 4:3.5.8-0ubuntu2.2 [2318kB]
Fetched 2318kB in 3m32s (10.9kB/s)
Selecting previously deselected package khelpcenter.
(Reading database … 162016 files and directories currently installed.)
Unpacking khelpcenter (from …/khelpcenter_4%3a3.5.8-0ubuntu2.2_i386.deb) …
Setting up khelpcenter (4:3.5.8-0ubuntu2.2) …
During installation process you will see a message below, just click ‘Create’.
Then click ‘Build Index’.
After the installation completed, now you can access the Game Help file. For example, I clicked help file in Kblackbox game. You will see the game Handbook like below.