使用bootstrap 4模态时，PhpStorm 2016.1.2会出错

Question

回到PhpStorm 8.0.1（最近更新之前）我的引导模式曾经与这段代码完美配合，但现在PhpStorm说找不到文件？这里很奇怪的是代码：

 <form name="register" method="post" action="index.php">
                <div class="input-group margin-bottom-sm margin-bottom-input">
                    <span class="input-group-addon"><i class="fa fa-envelope-o fa-fw"></i></span>
                    <input type="email" class="form-control" name="registeremail" placeholder="Enter your email">
                </div>
                <div class="input-group margin-bottom-sm margin-bottom-input">
                    <span class="input-group-addon"><i class="fa fa-user fa-fw"></i></span>
                    <input type="text" class="form-control" name="registerusername" placeholder="Enter username">
        </div>
                <div class="input-group margin-bottom-sm margin-bottom-input">
                    <span class="input-group-addon"><i class="fa fa-unlock fa-fw"></i></span>
                    <input type="password" class="form-control" name="registerpassword" placeholder="Enter password">
                </div>
                <div class="input-group margin-bottom-sm margin-bottom-input">
                    <span class="input-group-addon"><i class="fa fa-unlock fa-fw"></i></span>
                    <input type="password" class="form-control" name="verifypassword" placeholder="Verify password">
                </div>
        <div class="modal-footer">
            <input type="submit" name="submit" class="btn btn-primary" value="Register">
            </form> 
        </div>

我的php：

if(isset($_POST['submit'])){?>
<script type="text/javascript">
$(function() {                       // On DOM ready
    $('#registerModal').modal('show');   // Show the modal
});
 </script> 
<?php } ?>

然而，PhpStorm说“找不到404文件”。

我做错了吗？ PhpStorm 8.0.1中的这段代码完全正常。 莫代尔的截图：