Covered in this google group thread
The problem was because of the extra div that was being added by the select2. Select2 had added new div with class “select2-container form-select” to wrap the select created. So the next time i loaded the function, the error was being thrown as select2 was being attached to the div element. I changed my selector…
Prefix select2 css identifier with specific tag name “select”:
$('select.form-select').select2();