Fatal error: Uncaught exception 'Guzzle InvalidArgumentException'

Tried to run the trans.php program from wamp server from the path

C:\wamp\www\sep24\e\trans.php

I have included the AWS folder in

C:\wamp\www\sep24\e\Amazon\

And AWS credential file in wamp/www folder as well user directory for the access

C:\wamp\www\.aws\credentials & C:\Users\username\.aws\credentials

This is my Transcoder program

<?php
 require 'Aws/aws-autoloader.php';
 use Aws\ElasticTranscoder\ElasticTranscoderClient;

 $elasticTranscoder = ElasticTranscoderClient::factory(array(
    'version' => 'latest',
    'region' => 'ap-southeast-1', 
    'credentials' => array(
    'key' => '',
    'secret' => '',
   )    
   ));

  $job = $elasticTranscoder->createJob(array(
 'PipelineId' => '',
 'OutputKeyPrefix' => 'video'.time().'.mp4',

 'Input' => array(
    'Key' => 'video.mp4',
    'FrameRate' => 'auto',
    'Resolution' => 'auto',
    'AspectRatio' => 'auto',
    'Interlaced' => 'auto',
    'Container' => 'auto',
  ),

  'Outputs' => array(
    array(
        'Key' => 'myOutput.mp4',
        'Rotate' => 'auto',
        'PresetId' => '',
    ),
  ),
  ));


  $jobData = $job->get('Job');


  $jobId = $jobData['Id'];

  $elasticTranscoder->readJob(array('Id' => $jobId));
  $jobData = $resposne->get('Job');

  if ($jobData['Status'] !== 'progressing'  
  && $jobData['Status'] !== 'submitted') 
  {
  echo $jobData['Status'];
  }
  ?>

When i'm trying to run the program. I get two different error whenever I change the path used in the USE in the 3rd line.

If I run with use Aws\ElasticTranscoder\ElasticTranscoderClient;

I get this error

Fatal error: Uncaught exception 'Guzzle\Common\Exception\InvalidArgumentException' with message 'Unable to open C:\wamp\www\sep24\e\Aws\Aws\ElasticTranscoder/Resources/elastictranscoder-latest.php for reading' in C:\wamp\www\sep24\e\Aws\Guzzle\Service\AbstractConfigLoader.php on line 120

And when I run it with this path use Amazon\Aws\ElasticTranscoder\ElasticTranscoderClient;

I get error like this

Fatal error: Class 'Amazon\Aws\ElasticTranscoder\ElasticTranscoderClient' not found in C:\wamp\www\sep24\e\trans.php on line 5

I have included all the packages of AWS which I downloaded from the git.

What change should I make ?