PHPMailer用smtp.gmail.com发送邮件错误

在完成phpmailer的所有步骤并查看stackoverflow之后。我从和我有同样问题的人那里找到了所有我能找到的答案，但它对我不起作用。

My code is simple:
<?php
require 'PHPMailer/PHPMailerAutoload.php';
$mail = new PHPMailer;
$mail->SMTPDebug = 1;                               // Enable verbose debug output
$mail->isSMTP();                                      // Set mailer to use SMTP
$mail->Host = 'smtp.gmail.com';  // Specify main and backup SMTP servers
$mail->SMTPAuth = true;                               // Enable SMTP authentication
$mail->Username = 'I entered a valid gmail';                 // SMTP username
$mail->Password = 'I entered my password(I'm not giving it to you people, I know what you can do ;) )';                           // SMTP password
$mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
$mail->Port = 587;                                    // TCP port to connect to
$mail->SMTPKeepAlive = true; 
$mail->Mailer = "smtp"; 
$mail->From = 'The email its sent from';
$mail->FromName = 'Lobby desk';
$mail->addAddress(' Recipients mail ');               // Name is optional
$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';
}
?>

我希望有人能指出我的代码有什么问题，为什么会出现这个错误:

SMTP connect() failed

:

SMTP ERROR: Password command failed: 534-5.7.14 Please log in via您的浏览器和534-5.7.14，然后再试一次

我已经输入了gmail帐户的正确密码，并编辑了我的设置，以允许不太安全的应用程序。

一如既往，提前感谢那些认真对待我的用户