Thanks Kostas.
Please share your findings.

Hi.

Maybe it is something related to Java Script?

On opening K2 Item backend empty form, Firebug console shows error:

"TypeError: (intermediate value)(...) is not a function

Joomla.submitbutton = function(pressbutton){"

Best regards,

Brand New

It is possible.
The question is which extension is causing this error.
In all of my J! 3.4 setups I have not encountered this error.

Be kind enough to paste the entire function.

Hi.

Firebug point me to first line of this JS section:

"Joomla.submitbutton = function(pressbutton){
if (pressbutton == 'cancel') {
submitform( pressbutton );
return;
}
if ($K2.trim($K2('#title').val()) == '') {
alert( 'Item must have a title' );
}
else if ($K2.trim($K2('#catid').val()) == '0') {
alert( 'Please select a category' );
}
else {
syncExtraFieldsEditor();
var validation = validateExtraFields();
if(validation === true) {
$K2('#selectedTags option').attr('selected', 'selected');
submitform( pressbutton );
}
}
}"

Best regards,

Brand New

Same problem for me.

Additional extensions:
Simple gallery pro and Fox contact (disabling did not help)

Any help to solve this would be great.

Best Regards
Babylon5

Same problem here....the problem is on loading the K2 Item edit view
i.snag.gy/b5Oro.jpg

I have a multi-language site with almost none extra plugins

@Sabine is your site multilingual as well?

Since we cannot verify the issue and there are users reporting that they are not facing this issue it's probably a plugin causing this.

Everyone facing this issue you need to check all your installed extensions one by one. It's not just a K2 plugin that can cause this. It might be a content or a system plugin or even a module in the administration area.

So try disabling your extensions one by one until you find which one is causing the issue.

Hi.

And the winner is... <drums> Multilanguage status backend core module.
When switched off - error not appears.

Hope this help you locate problem. :)
It is also fast workaround.

Best regards,
Brand New

@Brand New

Can you provide more details on this? Just enabled the module and still i don't get the message. Can you describe the exact steps required to reproduce the issue?