[解決済み] 警告 Unknown: ストリームを開くのに失敗しました。そのようなファイルやディレクトリはありません in Unknown on line 0

質問

会員制のウェブサイトを作ろうとしています。セッションなどのスクリプトを作成しましたが、ログインボタンをクリックすると、以下のエラーが発生します。

Warning: Unknown: failed to open stream: No such file or directory in Unknown on line 0

Fatal error: Unknown: Failed opening required 'prepend.php' (include_path='.:/Applications/XAMPP/xamppfiles/lib/php') in Unknown on line 0

私はこれが何を意味するのか100％理解しているわけではないので、私のスクリプトを投稿します。そして、私が間違っていることを把握し、将来のために学ぶことができるように、誰かがどこが間違っているのか深く教えてくれるとありがたいのです。

ご意見、ご感想をお待ちしております。

index.php

<div id="maincontentWrapper">
<div id="maincontent">
    <div id="contentWrapper"></div><!--End loginWrapper -->
        <article>
            <p>Welcome to iManage, please login in below.</p>
        </article>
    <div id="loginform">
        <div id="loginWrapper">
        <form id="loginForm" method="POST" action="classes/class.Login.php">
        <h1><span class="log-in">Log in</span> or <span class="sign-up"><a href="register">sign up</a></span></h1>
        <div id="errorDiv"><?php 
                    if (isset($_SESSION['error']) & isset($_SESSION['formAttempt'])) {
                            unset($_SESSION['formAttempt']);
                            print "Errors encountered<br/>\n";
                            foreach ($_SESSION['error'] as $error) {
                            print $error . "<br />\n";
                        } //end foreach
                        } //end if 
                ?></div>
    <p class="float">
        <label for="login"><i class="icon-user"></i>Username</label>
        <input type="text" id="email" name="email" placeholder="E-mail">
          <span class="errorFeedback errorSpan" id="emailError">E-mail is required</span>
    </p>
    <p class="float">
        <label for="password"><i class="icon-lock"></i>Password</label>
        <input type="password" id="password" name="password" placeholder="Password" class="showpassword"> 
                <span class="errorFeedback errorSpan" id="passwordError">Password is required</span>

    </p>
    <p class="clearfix"> 
        <input type="submit" name="submit" value="Log in"></form>
    </p>   
        </div>

    </div>


</div>
</div>

</div>

クラス/クラス.Login.php

<?php 
include("../connect/class.Connect.php");

class Login extends Database {

    public $id;
    public $email;
    public $username;

        public function __construct() {
            if (session_id() == "") {
                session_start();    
            }
            if (isset($_SESSION['isLoggedIn']) && $_SESSION['isLoggedIn'] == true) {
                $this->_initUser();     
            }

        } // end construct

        public function authenticate($user, $pass) {

            $safeUser = $this->mysqli->real_escape_string($pass);
            $query = "SELECT * from users WHERE email = '{$safeUser}'";

                if (!$result = $this->mysqli->query($query)) {
                        error_log("Cannot retrieve account for {$user}");
                        return false;
                }   

                // will be only one row, so no while() loop needed
                $row = $result->fetch_assoc();
                $dbPassword = $row['password'];

                if (crypt($incomingPassword,$dbPassword) != $dbPassword) {
                        error_log("Passwords for {$user} don't match");
                        return false;
                }
                    $this->id = $row['id'];
                    $this->username = $row['username'];
                    $this->email = $row['email'];
                    $this->isLoggedIn = true;

                    $this->_setSession();
                    return true;    
        } // end function autheticate


        private function _setSession() {

            if (session_id() == '') {
                session_start();    
            }

            $_SESSION['id'] = $this->id;
            $_SESSION['email'] = $this->email;
            $_SESSION['username'] = $this->username;
            $_SESSION['isLoggedIn'] = $this->isLoggedIn;

        } // end function setSession

        private function _initUser() {

            if(session_id() == '') {
                sessions_start();           
            }

            $_SESSION['id'] = $this->id;
            $_SESSION['email'] = $this->email;
            $_SESSION['username'] = $this->username;
            $_SESSION['isLoggedIn'] = $this->isLoggedIn;



        }// end function initUser

        function validatelogin () {
                    $_SESSION['formAttempt'] = true;

        if (isset($_SESSION['error'])) {
        unset($_SESSION['error']);
        }

         $_SESSION['error'] = array();

        $required = array("email","password");

            //Check required fields
            foreach ($required as $requiredField) {
            if (!isset($_POST[$requiredField]) || $_POST[$requiredField] == "") {
            $_SESSION['error'][] = $requiredField . " is required.";
            }
            }


            if (!filter_var($_POST['email'],FILTER_VALIDATE_EMAIL)) {
            $_SESSION['error'][] = "Invalid e-mail address";
            }

            if (count($_SESSION['error']) > 0) {
                die(header("Location: login.php")); 
            } else {
                $user = new User;
                if ($user->authenciate($_POST['email'], $_POST['password'])) {
                    unset($_SESSION['formAttempt']);    
                 die(header("Location: authenticated.php"));
            }else {
                 $_SESSION['error'][] = "There was a  problem with your username or password.";
                 die(header("Location: login.php"));
                }
        }
        }



}

$run = new Login();
    $run->authenticate($user, $pass);
    $run->validatelogin();
?>

prepend.php

<?php

if (!isset($_SESSION) ) {
session_start();    
}
?>

.htaccess

RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php
php_value auto_prepend_file "prepend.php"

解決方法は？

.htaccessでprepend.phpに絶対パスを設定する