Exception: Fatal error failed to open field/class.radio.php shown on page with CRED form shortcode

Symptoms

Adding a CRED Form to your WebSite which includes some Types Custom Fields (like radio fields) produces a Fatal Error on the screen:

PHP Warning:  require_once(field/class.radio.php): failed to open 
stream: No such file or directory 
in .../cred-frontend-editor/application/controllers/form_rendering.php 
on line 83

PHP Fatal error:  require_once(): Failed opening 
required 'field/class.radio.php' 
(include_path='.:/Applications/MAMP/bin/php/php7.0.22/lib/php') in 
.../cred-frontend-editor/application/controllers/form_rendering.php 
on line 83

Workaround

This issue will be fixed in the next release of Toolset CRED.

In the meantime, you can download this file, extract it and replace the

form_rendering.php file in /plugins/cred-frontend-editor/application/controllers/ folder.

Please remember to keep a backup of your site and database before doing this.