Twiml return Error 12100, Message Document parse failure

[mzainmushtaq33]

Issue Summary

I'm facing an issue when return Twiml in webhook. It says An application error has been occurs. when i see twilio error logs it return error Error 12100 with message Document Parse Failure.
I'm using Twilio php sdk twilio/sdk 8.0

Steps to Reproduce

Twilio Webhook
Use PHP library VoiceResponse

Code Snippet

PHP

 $response = new VoiceResponse();
            $callerId=$twilioCallSetting->friendly_name;
            $dial = $response->dial('');
            $dial->client($callerId);

            Log::channel('twilioCallHook')->info("Client :".$callerId);
            return $response;

Exception/Log

Return this in Webhook response body
<?xml version="1.0" encoding="UTF-8"?>
<Response>
    <Dial>
        <Client>La Lavie</Client>
    </Dial>
</Response> 

Technical details:

• twilio-php version: 8.0
• php version:8.1