I have the same error here.

Though i updated my test site from 2.6.6 succesffully, the production updated failed.
I'm getting the 500 error.
I'm running Joomla! 2.5.14

It's clearly a k2 bug, as I have been using k2 for some years now and never had this error before.

I had to downgrade to 2.6.6 (I just installed 2.6.6 over 2.6.7 - hope this is ok) to make my site functional again. Anyone have tried to fix this?

Thank you.

nektarios wrote: I have the same error here.

Though i updated my test site from 2.6.6 succesffully, the production updated failed.
I'm getting the 500 error.
I'm running Joomla! 2.5.14

It's clearly a k2 bug, as I have been using k2 for some years now and never had this error before.

I had to downgrade to 2.6.6 (I just installed 2.6.6 over 2.6.7 - hope this is ok) to make my site functional again. Anyone have tried to fix this?

Thank you.

I quote myself as in my case the fault is with jv-postmaster plugin. If I disable it, everything works fine.
So it is not a K2 problem.

Thanks nektarie,

I am sure this info will help a lot of people.

I have the same problem getting a error 500 when trying to add new K2 item.

Debugging:
500 - An error has occurred.

XML file did not load

Return to Control Panel

Call stack
# Function Location
1 JAdministrator->dispatch() /hermes/bosoraweb139/b203/d5.muddypaw/public_html/vfw-warriors.com/administrator/index.php:46
2 JError::raiseError() /hermes/bosoraweb139/b203/d5.muddypaw/public_html/vfw-warriors.com/administrator/includes/application.php:164
3 JError::raise() /hermes/bosoraweb139/b203/d5.muddypaw/public_html/vfw-warriors.com/libraries/joomla/error/error.php:251

I read all of the posts here and thought I would go through my plugins to see if any where causing the problem. I disabled the K2 plugins one by one and found one to be the cause for me. I found K2 Plugin - One css per K2 template to be the problem. By disabling this plugin I can now add k2 items.

Had similar errors - coulldn't create category or item - switched off RokSprocket and Rok Common plug-in, and it solved the problem.

Yeah...I had the same problem. "XML file did not load" error

I solved it by disabling an older K2 plugin:

K2 - Republish This Article v2.5.0

It appears that plugin has not been updated to stay current with K2 and caused some kind of conflict.

Whew...only wasted an hour on this problem.

Im also getting 500 error while saving k2 item after updating 2.6.7..


anyone help me to downgrade the version...

If you are using Joomla! 3.2.x please install the 2.6.8 Dev build version.
getk2.org/assets/get/

For older versions please visit: code.google.com/p/getk2/downloads/list

for exact problem just go to Extension -> plugin manager type in search box "k2" ane disable all the plugin except bellow
Josetta - K2 Categories
Josetta - K2 Items
Search - K2
System - K2
User - K2
now its working perfectly for me.
and if you still want that plugin to enable then you must have to change some code in other file if need more help related code change then tell me
thanks.....