i have a website in joomla using k2 and i am utelizing json output using ?format=json whitch has been working fine up antil yesterday were it randomly giving me a warning error on the json output before the json starts:

<br /><b>Warning</b>: Creating default object from empty value in <b>/var/www/example.com/components/com_k2/views/itemlist/view.json.php</b> on line <b>149</b><br />
i cant find any thing anyone have any ideas.

You can disable error reporting so your web app is not affected.

Furthermore which version of K2 and Joomla! are you using?

i am using verion 2.7.0

thanks turned error reporting to system default and it is outputing json to app.

You' re welcome.
We will look on the warning on our end.

@Stephanus Dreyer

The issue has been resolved with this: github.com/joomlaworks/k2/commit/a918e2bb42daff0517cc6aa1448c37ef8b231581

Thanks for reporting this.