I was unable to add or edit content and then the following post hinted at this module:

https://drupal.org/node/1906128

After disabling the Hierarchical Select Menu submodule, the issue disappears.

The following error messages would appear preventing the content to be added / edited:

An illegal choice has been detected. Please contact the site administrator.
Warning: Illegal offset type in isset or empty in _form_validate() (line 1333 of ../includes/form.inc).
Notice: Array to string conversion in devel_watchdog() (line 548 of ../sites/all/modules/devel/devel.module).

Comments

thomasmurphy’s picture

thomasmurphy CreditAttribution: thomasmurphy commented

I have a similar issue with the 7.x 3.0-beta2 version,

Warning: Illegal offset type in isset or empty in _form_validate() (line 1374 of [...]/docroot/includes/form.inc).

also related, I suspect https://www.drupal.org/node/1906128

thomasmurphy’s picture

thomasmurphy CreditAttribution: thomasmurphy commented

Ahh, possible duplicate of https://www.drupal.org/node/1275862

stefan.r’s picture

stefan.r CreditAttribution: stefan.r commented
Priority: Normal » Critical
Gold’s picture

Gold
they/them
Location 20 minutes in the future
CreditAttribution: Gold at Catalyst IT commented
Status: Active » Closed (cannot reproduce)

This has been here for 3 years and I am currently unable to replicate.

If people still find this happening please reopen and give details steps to replicate.