I am about to explode! I have followed [this step](https://stackoverflow.com/a/28906969/718990), step by step (as the picture below shows) and it still doesn't work for me!

[![enter image description here](https://i.stack.imgur.com/IL4cE.jpg)](https://i.stack.imgur.com/IL4cE.jpg)

```
require_once 'configurations/phpmailer/PHPMailerAutoload.php';
$mail = new PHPMailer;

//$mail->SMTPDebug = 3;                               // Enable verbose debug output

$mail->isSMTP();                                      // Set mailer to use SMTP
$mail->Host = 'smtp1.example.com;smtp2.example.com';  // Specify main and backup SMTP servers
$mail->SMTPAuth = true;                               // Enable SMTP authentication
$mail->Username = 'user@example.com';                 // SMTP username
$mail->Password = 'secret';                           // SMTP password
$mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
$mail->Port = 587;                                    // TCP port to connect to

$mail->setFrom('from@example.com', 'Mailer');
$mail->addAddress('joe@example.net', 'Joe User');     // Add a recipient
$mail->addAddress('ellen@example.com');               // Name is optional
$mail->addReplyTo('info@example.com', 'Information');
$mail->addCC('cc@example.com');
$mail->addBCC('bcc@example.com');

$mail->addAttachment('/var/tmp/file.tar.gz');         // Add attachments
$mail->addAttachment('/tmp/image.jpg', 'new.jpg');    // Optional name
$mail->isHTML(true);                                  // Set email format to HTML

$mail->Subject = 'Here is the subject';
$mail->Body    = 'This is the HTML message body <b>in bold!</b>';
$mail->AltBody = 'This is the body in plain text for non-HTML mail clients';

if(!$mail->send()) {
    echo 'Message could not be sent.';
    echo 'Mailer Error: ' . $mail->ErrorInfo;
} else {
    echo 'Message has been sent';
}

```

**Please note** that I have copied and pasted the code from GitHub and **not** changed the username nor the password! If the code above works, I wouldn't get the fatal error of `Uncaught Error: Class 'PHPMailer' not found in ...`.

I have done this exactly as it is in the picture and in the code above (with some minor changes, of course) on my other projects and I have no problems at all with this on those projects!

What have I missed? What is wrong?