Cannot insert Checkboxes field into a Form using the Expert mode

Symptoms

There’s an issue that prevents inserting a Checkboxes field into a form when the Expert mode is active.

The following error is logged in the browser console:

• TypeError: $ is undefined

Workaround

Until we fix this issue, you can use the following:

1. Open the prototype.js file found in the ../cred-frontend-editor/public/form_editor_toolbar/js/ folder.

2. Find the following line:

$.extend( true, {}, rawAttributes ),

3. Replace it with the following one:

jQuery.extend( true, {}, rawAttributes ),