Warning: Array to string conversion in class-acf-post-type.php

[TimidRobot]

Description

Error reporting during any WPCLI operation:

Warning: Array to string conversion in /var/www/index/wp-content/plugins/advanced-custom-fields/includes/post-types/class-acf-post-type.php on line 455

Reproduction

1. Start docker services
2. Run ./wpcli.sh plugin list

Expectation

There shouldn't be any warnings.

Additional context

• At the time of writing, advanced-custom-fields version 6.1.8 was installed

Resolution

• I would be interested in resolving this bug.

[possumbilities]

My initial theory is that ACF just needs an upgrade. I'm not seeing this on newer versions in a quick test.

I'll test further to confirm, and if so will do some more tests to make sure that the newest versions of ACF won't be incompatible with anything within vocabulary-theme.

[possumbilities]

I did some testing, and also did testing with WP in isolation within vocabulary-theme as well just to verify. Can confirm this is due to the ACF version.

The error occurs when using v6.1.8, but does not occur with the newest version v6.4.3.

Will move to testing vocabulary-theme fully with ACF v6.4.3 to verify that it is working as expected. If that goes well I'll issue a PR to index-dev-env to update the minimum version in composer.