Parameter must be an array or an object that implements Countable / fieldgroup.php on line 605

hi there,

i get above error when trying to render fields that are grouped in a field-group-field.

[setup]
J 3.9.10
FC 3.3.1.5

[EDIT 1]
php 7.2.20

[EDIT 2]
Happens bevause i configured the field-group-field like this:
- viewing > layout > Use customized HTML > switched to "Custom HTML" > and then an empty textarea
- viewing > value-list > configured here what to render.

[My fix]
change in the field-group-field:
- viewing > layout > Use customized HTML > switched to "Layout"

That basically fixed it. Maybe the php-error could be changed to a Notice á la ~"You need to confured field xy like this: ... " (?)

thank you!
kath

Hello

yes when parameter custom HTML is empty
a message is supposed to be shown to help the user

but existing code does not "return" proper value (an array of single string)
and this causes "not countable" error in PHP 7.2+

i have committed a fix here:
github.com/FLEXIcontent/flexicontent-cck...4e2bee27ecdbe1a9a45f

If you want to use the patched version you can install via URL v3.3.1.16-hotfix branch
github.com/FLEXIcontent/flexicontent-cck/archive/3.3.1.x.zip

great. thanks for your reply!