Error using phpMailer and isHTML - php

Question

Im using phpMailer to send an image like attachment and a message in HTML. But the page show me that is not working.
include 'PHPMailer-master/class.phpmailer.php';
$mail = new PHPMailer();
$mail->From = 'someone#some.com';
$mail->FromName = 'someone';
$mail->AddAddress( 'someone#some2.com' );
$mail->Subject = 'Message Subject';
$mail->Body = "<h1>Test 1 of PHPMailer html</h1><p>This is a test</p>";
$mail->AltBody="This is text only alternative body.";
$mail->IsHTML(true);
$file_to_attach = '../images/logo.png';
$mail->AddAttachment( $file_to_attach , 'logo.png"' );
if(!$mail->Send())
echo "Error sending: " . $mail->ErrorInfo;;
else
echo "Letter is sent";
Using this code works perfectly to me send a message with HTML and an attachment.
<?php
require_once 'PHPMailer-master/class.phpmailer.php';
$mail = new PHPMailer(true);
try {
$mail->AddAddress('someone#some.com', 'a name');
$mail->SetFrom('someone2#some2.com', 'another name');
$mail->AddReplyTo('someone3#some3.com', 'another name');
$mail->Subject = 'PHPMailer Test';
$mail->AltBody = 'To view the message, please use an HTML compatible email viewer!';
$mail->IsHTML(true);
$mail->Body = "<h1>Test 1 of PHPMailer html</h1><p>This is a test</p>";
$mail->AddAttachment('../images/logo.png');
$mail->Send(); echo "Message Sent OK\n";
}
catch (phpmailerException $e) {
echo $e->errorMessage();
}
catch (Exception $e) {
echo $e->getMessage();
}
?>

Answer 1

You are using $email variable to new object PHPMailer but in line 8,9 and 14,15 you're using $mail.
$mail->AltBody="This is text only alternative body.";
$mail->IsHTML(true);
if(!$mail->Send())
echo "Error sending: " . $mail->ErrorInfo;
just use $email.

Answer 2

I see you are using
$file_to_attach = '../images/logo.png';
to get the name for the image file. However the file name is already set in:
$email->AddAttachment( $file_to_attach , 'logo.png"' );
Try putting the whole path in $email->AddAttachment(); like this $email->AddAttachment('../images/Logo.pgn');