my error:
joomla 1.5.23
Ja News Pro module
Fatal error: Call to undefined method K2ModelItemlist::getCategoryFirstChilds() in /home/www/7254651246213fgf65132yh/web/site-1.5/modules/mod_janewspro/helpers/adapter/k2.php on line 40

i need link for old version k2

the same problem here...
i am using joomla 1.5.23
K2 2.5
when i enable JA NEWS PRO module it gives me this error on front end

Fatal error: Call to undefined method K2ModelItemlist::getCategoryFirstChilds() in /home/mardik/public_html/mardik1/modules/mod_janewspro/helpers/adapter/k2.php on line 40

when i disable the modue, website works fine....

There is no method getCategoryFirstChilds in K2 v.2.5


Try to replace it in module for new method getCategoryFirstChildren


Or wait for update from JA

I had to downgrade to 2.4.1 - and the broken module works again. I know this problem has occurred among a number of template and app designers, and have advised the module designer of the item giving me trouble. One wonders whether the K2, php or joomla designers might have hidden or omitted something in their documentation, given the number of reputable designers who have broken modules under K2 v 2.5.x