I’ve followed the directions for the quickstart:

Downloaded the zip for PHP > Auth code grant. I ran the composer install & launched at http://localhost:8080/public.

I was asked to grant authorization but upon being redirected with a ‘code’ included as a get param I get:

Uncaught Error: Class “DocuSignServicesUtils” not found

If I take the arguments out of the URL (which included ?page=ds_callback and the grant code) I get the web form, but submitting it produces:

Fatal error: Uncaught InvalidArgumentException: Missing the required parameter $account_id when calling createEnvelope