I installed K2, added some content and got a series of errors like this:

Warning: Parameter 2 to plgContentNavigation() expected to be a reference, value given in G:\xampplite\htdocs\muckraker\libraries\joomla\event\dispatcher.php on line 136

It appears to be something related to PHP references, which changed with the upgrade to 5.3. Does anyone have any ideas?

i have the same problem !
running wampserver locally with php 5.3

this is my error message:
Warning: Parameter 2 to plgContentNavigation() expected to be a reference, value given in C:\wamp\www\joomla15\libraries\joomla\event\dispatcher.php on line 136

Hi. Latest version of K2 doesn't support PHP 5.3 as when it was released Joomla wasn't compatible with PHP 5.3 either. Joomla now supports PHP 5.3 and so does K2! It has been already fixed and the next release of K2 will be compatible with PHP 5.3.

interesting, when is the next release due ?

Lefteris Kavadas said:Hi. Latest version of K2 doesn't support PHP 5.3 as when it was released Joomla wasn't compatible with PHP 5.3 either. Joomla now supports PHP 5.3 and so does K2! It has been already fixed and the next release of K2 will be compatible with PHP 5.3.