PHP Error: Undefined index

I also seem to be having an issue with this – I just started using ACF Pro (Version 5.5.14) with the image crop plugin (Version 1.4.10). I started saving some posts and pages and getting the error:

Notice: Undefined index: url in /Volumes/xxxxxxxxx/xxxxxxxxx/xxxxxxxxx/xxxxxxxxx/website/wp-content/plugins/advanced-custom-fields-pro/api/api-helpers.php on line 3982

Notice: Undefined index: url in /Volumes/xxxxxxxxx/xxxxxxxxx/xxxxxxxxx/xxxxxxxxx/website/wp-content/plugins/advanced-custom-fields-pro/api/api-helpers.php on line 3982

Warning: Cannot modify header information - headers already sent by (output started at /Volumes/xxxxxxxxx/xxxxxxxxx/xxxxxxxxx/xxxxxxxxx/website/wp-content/plugins/advanced-custom-fields-pro/api/api-helpers.php:3982) in /Volumes/xxxxxxxxx/xxxxxxxxx/xxxxxxxxx/xxxxxxxxx/website/wp-admin/post.php on line 197

Warning: Cannot modify header information - headers already sent by (output started at /Volumes/xxxxxxxxx/xxxxxxxxx/xxxxxxxxx/xxxxxxxxx/website/wp-content/plugins/advanced-custom-fields-pro/api/api-helpers.php:3982) in /Volumes/xxxxxxxxx/xxxxxxxxx/xxxxxxxxx/xxxxxxxxx/website/wp-includes/pluggable.php on line 1210

(I’ve ‘X’ed out all private info!)

This is a great plugin I use a lot – very strange it just started doing this, but again, if the image crop field is not used there’s no problem…

Anyone managed to resolve this?

Regards, Alex

• This reply was modified 7 years, 4 months ago by alsterb.
• This reply was modified 7 years, 4 months ago by alsterb.

Hi guys

Elliot here – ACF dev.

Just wanted to chime in here and let you know I am aware of the issue and apologize for the bug.
I’ve commented on the ‘image crop’ github issue with a solution:
https://github.com/andersthorborg/ACF-Image-Crop/issues/45

Can you please test that out and let me know if it works for you????????

Hi Elliot – will have a go!

I changed all the image with user crop fields back to normal image ones, but I’ll play around with the version on my local dev to see what happens – will post back soon!

Regards, Alex

Okay – gave it a go, but still the header errors. Maybe I placed the empty initialise function in the wrong place? I put it in the act-image-crop-v5.php just after the first opening bracket?:

class acf_field_image_crop extends acf_field_image {

	
	function initialize() {
		
		/* do nothing */
			
	}

        ....

Was that the right location?

Okay – just seen how the plugin has been updated – no problems at all now, works like a charm!

Just want to say thank you, because this plugin makes life for my clients so much easier….