Solved Fatal error: Class 'KunenaRoute' not found in ../administrator/components/com_kunena/install/sql/install/php/sampledata.php on line 147

This is an old topic and, I must admit, not something that I have encountered personally.

It's possible that there may be some "peculiar" folder permissions preventing certain files being copied to where they need to be copied and these, in turn, account for why the installation process cannot complete successfully in your case.

The conditions that prevailed when this topic began several months ago have now changed. K 3.0 RC was never supported and many of the problems in that version were fixed in the stable release(s) that followed. Even so, K 3.0.1 is also unsupported. The only supported version of Kunena (at this time) is K 3.0.3. It is not entirely true to say that you cannot downgrade from K 3.0 to K 2.0 because the internal data structures of K 3.0 are the same as K 2.0 but only if K 3.0 was successfully installed in the first place and only if you do not uninstall K 3.0 (see Downgrading to Kunena 2.0 is possible ); this exemption only applies to websites built on J! 2.5.

The K 3.0.3 release notes contain information about "writable folders". This information may be relevant in your case.

The recommended installation and upgrade procedures are in the Wiki.

I hope some of this helps.

To be clear, this is an attempt to install Kunena, on a site which has never had it before.

After much troubleshooting and many manual uninstallations where tables and files were left behind by Kunena's install script, I was able to fix it with one line of code, and complete the installation of 3.0.3 on 2.5.16. Buuuuuuuuut... despite saying the installation finished and getting no errors in Apache's error_log, every time I hit the Kunena component in the Joomla admin, it repeats the install process. (This includes clicking Close, and then using the Components menu.)

All I did was add this line to schema.php at line 11:

require_once(__DIR__."/../api.php");

Apparently there is a file loading order issue which came into effect on my site for some reason?

Installation details now say:

Prepare Installation ... OK
Installing Kunena - Alphauserpoints plug-in ... OK
Installing Kunena - Community plug-in ... OK
Installing Kunena - Comprofiler plug-in ... OK
Installing Kunena - Gravatar plug-in ... OK
Installing Kunena - Uddeim plug-in ... OK
Installing Kunena - Kunena plug-in ... OK
Installing Kunena - Joomla plug-in ... OK
Installation completed successfully. ... OK

But hitting the admin component causes it to repeat the install process.

BUT!!! Then I added a menu item for the Kunena Homepage link to my front-end and cleared my site cache. And just on a freak whim, before even reloading my homepage, I went back into Administrator -> Components -> Kunena... and now it works?!?!

I can post messages in the front-end, so far zero errors on either end...

Now, before any of this was solved, I had repeatedly checked permissions and ownership on things. All files and folders for the entire site tree, were owned by the same user Apache runs as. I feel very confident that if it had been a mere issue of permissions or file ownership, I'd have had zero trouble, just like I have in past Kunena installs.

Here's the configuration report (with URL and mail config details removed, otherwise intact), now that things are working:

Database collation check: The collation of your table fields are correct

Joomla! SEF: Enabled | Joomla! SEF rewrite: Enabled | FTP layer: Disabled |
htaccess: Exists | PHP environment: Max execution time: 30 seconds | Max execution memory: 128M | Max file upload: 6M

Kunena menu details:

Warning: Spoiler!

ID	Name	Menutype	Link	Path
219	Forum	mainmenu	Itemid=273	kunena-2013-11-15
273	Forum	kunenamenu	view=home&defaultmenu=275	forum
274	Index	kunenamenu	view=category&layout=list	forum/index
275	Recent Topics	kunenamenu	view=topics&mode=replies	forum/recent
276	New Topic	kunenamenu	view=topic&layout=create	forum/newtopic
277	No Replies	kunenamenu	view=topics&mode=noreplies	forum/noreplies
278	My Topics	kunenamenu	view=topics&layout=user&mode=default	forum/mylatest
279	Profile	kunenamenu	view=user	forum/profile
280	Help	kunenamenu	view=misc	forum/help
281	Search	kunenamenu	view=search	forum/search
282	Kunena	mainmenu	view=home&defaultmenu=122	kunena

Joomla default template details : atomic | author: Ron Severdia | version: 2.5.0 | creationdate: Unknown

Kunena default template details : Blue Eagle | author: Kunena Team | version: 3.0.3 | creationdate: 2013-10-20

Kunena version detailed: Kunena 3.0.3 | 2013-10-20 [ Bifrost ]
| Kunena detailed configuration:

Warning: Spoiler!

Kunena config settings:
board_offline	0
enablerss	1
threads_per_page	20
messages_per_page	6
messages_per_page_search	15
showhistory	1
historylimit	6
shownew	1
disemoticons	0
template	blue_eagle
showannouncement	1
avataroncat	0
catimagepath	category_images
showchildcaticon	1
rtewidth	450
rteheight	300
enableforumjump	1
reportmsg	1
username	1
askemail	0
showemail	0
showuserstats	1
showkarma	1
useredit	1
useredittime	0
useredittimegrace	600
editmarkup	1
allowsubscriptions	1
subscriptionschecked	1
allowfavorites	1
maxsubject	50
maxsig	300
regonly	0
pubwrite	0
floodprotection	0
mailmod	0
mailadmin	0
captcha	0
mailfull	1
allowavatarupload	1
allowavatargallery	1
avatarquality	75
avatarsize	2048
imageheight	800
imagewidth	800
imagesize	150
filetypes	txt,rtf,pdf,zip,tar.gz,tgz,tar.bz2
filesize	120
showranking	1
rankimages	1
userlist_rows	30
userlist_online	1
userlist_avatar	1
userlist_name	1
userlist_posts	1
userlist_karma	1
userlist_email	0
userlist_joindate	1
userlist_lastvisitdate	1
userlist_userhits	1
latestcategory
showstats	1
showwhoisonline	1
showgenstats	1
showpopuserstats	1
popusercount	5
showpopsubjectstats	1
popsubjectcount	5
usernamechange	0
showspoilertag	1
showvideotag	1
showebaytag	1
trimlongurls	1
trimlongurlsfront	40
trimlongurlsback	20
autoembedyoutube	1
autoembedebay	1
ebaylanguagecode	en-us
sessiontimeout	1800
highlightcode	0
rss_type	topic
rss_timelimit	month
rss_limit	100
rss_included_categories
rss_excluded_categories
rss_specification	rss2.0
rss_allow_html	1
rss_author_format	name
rss_author_in_title	1
rss_word_count	0
rss_old_titles	1
rss_cache	900
defaultpage	recent
default_sort	asc
sef	1
showimgforguest	1
showfileforguest	1
pollnboptions	4
pollallowvoteone	1
pollenabled	1
poppollscount	5
showpoppollstats	1
polltimebtvotes	00:15:00
pollnbvotesbyuser	100
pollresultsuserslist	1
maxpersotext	50
ordering_system	mesid
post_dateformat	ago
post_dateformat_hover	datetime
hide_ip	1
imagetypes	jpg,jpeg,gif,png
checkmimetypes	1
imagemimetypes	image/jpeg,image/jpg,image/gif,image/png
imagequality	50
thumbheight	32
thumbwidth	32
hideuserprofileinfo	put_empty
boxghostmessage	0
userdeletetmessage	0
latestcategory_in	1
topicicons	1
debug	0
catsautosubscribed	0
showbannedreason	0
version_check	1
showthankyou	1
showpopthankyoustats	1
popthankscount	5
mod_see_deleted	0
bbcode_img_secure	text
listcat_show_moderators	1
lightbox	1
show_list_time	720
show_session_type	0
show_session_starttime	0
userlist_allowed	0
userlist_count_users	1
enable_threaded_layouts	0
category_subscriptions	post
topic_subscriptions	every
pubprofile	1
thankyou_max	10
email_recipient_count	0
email_recipient_privacy	bcc
captcha_post_limit	0
keywords	0
userkeywords	0
image_upload	registered
file_upload	registered
topic_layout	flat
time_to_create_page	1
show_imgfiles_manage_profile	1
hold_newusers_posts	0
hold_guest_posts	0
attachment_limit	8
pickup_category	0
article_display	intro
send_emails	1
fallback_english	1
cache	1
cache_time	60
iptracking	1
rss_feedburner_url
autolink	1
access_component	1

| Kunena integration settings:

Warning: Spoiler!

Kunena - AlphaUserPoints Disabled
Kunena - Community Builder Disabled
Kunena - Gravatar Disabled
Kunena - JomSocial Disabled
Kunena - Joomla Enabled: access=1 login=1
Kunena - Kunena Enabled: avatar=1 profile=1
Kunena - UddeIM Disabled

| Joomla! detailed language files installed:

Warning: Spoiler!

Joomla! languages installed:
en-GB	English (United Kingdom)

Third-party components: None

Third-party SEF components: None

Plugins: None

Modules: None

NathanHawks wrote: BUT!!! ... just on a freak whim, before even reloading my homepage, I went back into Administrator -> Components -> Kunena... and now it works?!?!

I can post messages in the front-end, so far zero errors on either end.

And (touch wood) you won't have any errors, either.

An important point was made by Matias earlier in this topic:

Matias wrote: Try installing stable version (downloads page). Sometimes PHP is a bit slow on catching up on changed files and also I've got similar errors to yours, which go away in 10-15 minutes with no changes made.

This just goes to show that the problems you've encountered can happen to anyone.

The key phrase in the last message posted by Nathan is

and now it works

and I am going to assume this is not an open-ended question but a statement of fact. On this basis I am marking this topic as resolved and putting it into the archive for others to read, to learn from, and hopefully to help them, too.

Not much to say in here, I believe that the issues were caused by cached files, just like sozzled suspected. Unfortunately I've not found cure for that issue as cleaning all kinds of cache doesn't seem to work.

Kunena doesn't remove database or user files during uninstall. It also prevents older incompatible versions to be installed (prevents data corruption).

Perhaps the installer should detect the presence of the blocking bit of cache, and clear it at some appropriate stage during the installation?

NathanHawks wrote:
All I did was add this line to schema.php at line 11:

require_once(__DIR__."/../api.php");

This one does the trick.