Error 404: Not Found after upgrade to V8.2.1 when adding contact to case

[crmscot]

I've updated my live system to V8.2.1 and get the above error when trying to add an existing Contact to a Case record. The same happens when I try to add an Attendee to a Meeting.

The log file shows:

[2024-04-03 17:10:46] WARNING: (404) Controller '[object Promise]' does not exist.; GET /%5Bobject%20Promise%5D; line: 189, file: /var/www/html/espocrm/application/Espo/Core/Api/ControllerActionProcessor.php

I can reproduce this on your live online demo system too.

Espocrm 8.2.1
Mariadb Version 10.6.16
PHP Version 8.1.2

[item]

https://forum.espocrm.com/forum/general/104340-meeting-attendee-input-contact-give-promise-404

There are fix on github.

[crmscot]

Thanks for your prompt reply. I'll check that out.