Thanks Frost for your help. However, I can't find any previous versions on the site. I've asked support if they have a link.

Hi guys!

I searched for help in the forum, but didn't find a solution yet... I use Joomla v2.5.7 (with Community Builder v1.8.1). I upgraded K2 from v2.5.7 to v2.6.1 and all my registered visitors got that fatal error ("Fatal error: Class 'K2Table' not found in xxx/administrator/components/com_k2/tables/k2user.php on line 13").

If I clear my browser's cache and cookies the site works as intented. But the error can be reproduced with the following three steps:

1.) Check the box "Remember Me" and log in.
2.) Close your browser while being logged in.
3.) Open your browser and visit the site again. The error message appears again.

I can get rid of that error again and again by clearing my browser's cache and cookies as stated above. But that error will come back after closing my browser while being logged in. For me it seems like an error with the cookies... A new install of the version 2.6.1 didn't help. Any idea how to fix that? Thanks in advance!

You can download previous versions from this site.

I had the same problem and I did this hack to fix this. Please make sure you have a backup and of course as with all hacks you should do this in each and every upgrade you make. The fix is not the best, but sure its tha fastest way to solve this issue.

Open components/com_k2/models/itemlist.php

Around line 339 under this line

put this code

So with this hack allow Admins and authors to view Un-bpublished items in category listings. The ID's 3 and 8 are for Authors and Superadmins in a default Jinstallation. You can put many more if you like other groups to see this as well.

Also in the overridden view file /templates/templatename/html/com_k2/default/category_item.php

around line 54 add this line, so you can see what articles are un-published


And at last, in order to see the un-published item you do something similar.

open /components/com_k2/views/item/view.html.php and around line 106 replace this

with this

It worked perfect for me.

Thanks. Unfortunately, I do not have the zip for the older version that I updated from. I did try 2.4.1 but that did not work. I'll have to restore the old K2 files and database... I think.

Any suggestions anyone? I could restore the old site then update it all over again but there has to be a way to retrieve old content. I'd like to learn that method as I'll need it in the future.

Hi, just upgraded joomla and k2 using the remote upgrade and I now get an error in the administrator when I try to access k2 - 404 - An error has occurred. The current path in Joomla admin menu for k2 is administrator/index.php?option=com_k2

Note that the component is installed and published and everything on the front end appears correctly.

Before you restore your site backup, have you tried just rolling back your k2 to the version that was previously installed when your site was working? I had the same issue with my site when I updated to a new version of k2, I had lost all my content. I just reinstalled the older version of k2 (without installing the newer version). Once I did that it corrected all my issues.

However, if that is not the case with yours and you do need to restore your site I suggest you post on the joomla forums as your questions would be more inline with that user base imo.

Just my two cents, I hope you get it working.

I found the backup of the web site and downloaded it. What files do I need to pull from the backup to retrieve my content?

I have a backup of the database from before I updated K2 and Joomla 1.5.7 to Joomla 1.5.26. if I replace the database will that affect the update to Joomla 1.5.26? I assume it won't...

I've upgraded to K2 2.6.1 and during my testing, I found that images that have been uploaded in K2 are not re-sized properly. Looking at the cache folder, I found that all the images XS,S,M,L,XL all have the same file size and same width of 480px regardless what I have specified under Image Option in K2 Parameters.

Anyone else have this same issue? I'm on Joomla 2.5.7.

:ohmy: I downloaded the latest K2 Zip file and installed it through my extension manager. Now, I have lost all my categories and items. K2 appears to work just fine but I have lost ALL my content.

I have Joomla 1.5.26, and am planning upgrade to 2.5 in the spring, but for now I tried loading K2 2.6 into my Joomla 1.5.26 version. Could that be the problem?

I am trying to get my site back up after being hacked and need to update my software.

Does anybody knows why, from one day to another, K2 stop uploading images on items correctly and started generating 0 bytes files? Obviously those files doesn't show up.



I've upgraded to K2 v2.6.0 and it worked for a day but then stopped working.
Help me please!

I have a recurring issue that I have previously solved with a slight change in the K2 code.

After an upgrade, I can't find the override to fix the issue as it was in a post on the old K2 board.

The issue I have is that when a user on the front end, edits an item and clicks save, the item does not save and the site's homepage loads in the K2 popup.

This seems to be a problem with the relative url used by the script based on my server. I just can't find how to fix it.

J! v 1.5.26
K2 2.5.6

I cannot upload zip file in image gallery tab after upgrade to K2 v2.6.1

anyone any ideas why?
permissions are all fine

Same error here. I use Joomla v2.5.7, Community Builder v1.8.1. Yesterday I upgrade K2 from v2.5.7 to v2.6.1 and today all my registered visitors got that fatal error ("Fatal error: Class 'K2Table' not found in /administrator/components/com_k2/tables/k2user.php on line 13").

I try to provide some more information on that issue:

If you clear your browser's cache and cookies the site works as intented. But you can reproduce the error in three steps:

1.) Log in and check the box "Remember Me".
2.) Close your browser.
3.) Open your browser and visit the site again. The error message appears again.

You can get rid of that error again and again by clearing your browser's cache and cookies as stated above. But that error will come back after closing your browser while being logged in. For me it seems like an error with the cookies... A new install of the version 2.6.1 didn't help. Any idea how to fix that? Thanks in advance!

I tried what was mentioned in this post and it worked.

Hopefully a future version of the K2 these problems are solved

Try this...
In you joomla admin panel goto Extensions > Extension Manager and Click on the "Manage" Tab

Disable this: System - K2 Mart (Plugin)

Everything seems to work for me (including k2 mart) after that..

Hi after searching a lot I,m posting this question. When trying to add a tag in k2 item in joomla 2.5 backend, nothing happens. I have pressed enter and also tried with comma. I have tried with updating k2 latest version. But still same problem. I,m using ja_wall template, joomla 2.5. Also I,m getting this error after k2 upgrade

Model class cpanelModelCpanel not found in file

Can anyone help please.

The movies from ostraining under documentation show how to correctly configure a k2 template or override
the override should be a copy of the folder
YoursiteRoot/components/com_k2/templates/default
placed in
YourSiteRoot/Templates/YourTemplateName/html/com_k2/templates and renamed from default to your custom template name
It will then show in the pick list when you look at a k2 category and it contains the php files to edit so you can both change the display of the items and also not loose your changes upon upgrade

The path should be /templates/YOURJOOMLATEMPLATE/html/com_k2/

It's better to upgrade to K2 2.6.x (latest version) as it already comes with OGP meta tags.

You should not make changes to the file in the k2 core. All changes will be lost when you upgrade.
Try setting javascript in the k2 options layout tab at the top on your localhost version to load local copy and see if that may be the problem.