FWIW I had the same problem and gave up trying to sort it out. I tried on my local installation and via hosting. I ended up calling the image via CSS.
Yep – the code I posted above added to wp-config.php seems to be the working fix, at least at this point in time it’s working for me.
I had added the DHTMLX Scheduler plugin and any attempt to view the config page for that, or to add/edit/delete events on the scheduler page and I got the deprecated warning as posted initially.
But all is working well now!
*crosses fingers*
Hiya,
I forgot to add that I had already tried that and it didn’t work – but someone from the XAMPP forums suggest the following to add in wp-config.php and I’m now getting no errors.
// Hide E_DEPRECATED messages.
if (defined('E_DEPRECATED')) {
error_reporting(error_reporting() & ~E_DEPRECATED);
}