有人能帮我解决这个问题吗？
你可以在这张图片中看到我的错误：https://i.stack.imgur.com/WUUbp.png
template.blade.php
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<!-- global stylesheets -->
<link href="https://fonts.googleapis.com/css?family=Roboto:400,300,100,500,700,900" rel="stylesheet" type="text/css">
<link href="https://fonts.googleapis.com/css?family=Roboto:400,300,100,500,700,900" rel="stylesheet" type="text/css">
<link href="{{base_url('assets/css/icons/icomoon/styles.css')}}" rel="stylesheet" type="text/css">
<link href="{{base_url('assets/css/bootstrap.css')}}" rel="stylesheet" type="text/css">
<link href="{{base_url('assets/css/core.css')}}" rel="stylesheet" type="text/css">
<link href="{{base_url('assets/css/components.css')}}" rel="stylesheet" type="text/css">
<link href="{{base_url('assets/css/colors.css')}}" rel="stylesheet" type="text/css">
<!-- /global stylesheets -->
<!-- Core JS files -->
@yield('corejs')
<!-- /Core JS files -->
<title>@yield('title')</title>
</head>
<body>
@yield('content')
</body>
</html>
menu.blade.php
<div class="navbar navbar-inverse">
<div class="navbar-header">
<a class="navbar-brand" href="index.html"><img src="<?=base_url('assets/images/logo_light.png')?>" alt=""></a>
<ul class="nav navbar-nav visible-xs-block">
<li><a data-toggle="collapse" data-target="#navbar-mobile"><i class="icon-tree5"></i></a></li>
<li><a class="sidebar-mobile-main-toggle"><i class="icon-paragraph-justify3"></i></a></li>
</ul>
</div>
<div class="navbar-collapse collapse" id="navbar-mobile">
<ul class="nav navbar-nav">
<li><a class="sidebar-control sidebar-main-toggle hidden-xs"><i class="icon-paragraph-justify3"></i></a></li>
</ul>
<p class="navbar-text">
<span class="label bg-success">Online</span>
</p>
<p class="navbar-text">
<span class="label"><i class="icon-coins">3.242 pts.</i></span>
</p>
<div class="navbar-right">
<ul class="nav navbar-nav">
<li class="dropdown dropdown-user">
<a class="dropdown-toggle" data-toggle="dropdown">
<img src="<?=base_url('assets/images/placeholder.jpg')?>" alt="">
<span>{{$_nama}}</span>
<i class="caret"></i>
</a>
<ul class="dropdown-menu dropdown-menu-right">
<li><a href="{{base_url('Superuser/myprofile/edit_profile')}}"><i class="icon-cog5"></i> Account settings</a></li>
<li><a href="{{base_url('Superuser/Logout')}}"><i class="icon-switch2"></i> Logout</a></li>
</ul>
</li>
</ul>
</div>
</div>
</div>
<!-- /main navbar -->
<!-- main menu -->
@switch($_menu)
@case('ketum')
<!-- Page container -->
<div class="page-container">
<!-- Page content -->
<div class="page-content">
<!-- Main sidebar -->
<div class="sidebar sidebar-main">
<div class="sidebar-content">
<!-- User menu -->
<div class="sidebar-user">
<div class="category-content">
<div class="media">
<a href="#" class="media-left"><img src="{{base_url('assets/images/placeholder.jpg')}}" class="img-circle img-sm" alt=""></a>
<div class="media-body">
<span class="media-heading text-semibold">{{$_nama}} </span>
<div class="text-size-mini text-muted">
<i class="icon-crown text-size-small"></i> {{strtoupper($_pos)}}
</div>
</div>
<div class="media-right media-middle">
<ul class="icons-list">
<li>
<a href="#"><i class="icon-cog3"></i></a>
</li>
</ul>
</div>
</div>
</div>
</div>
<!-- /user menu -->
<!-- Main navigation -->
<div class="sidebar-category sidebar-category-visible">
<div class="category-content no-padding">
<ul class="navigation navigation-main navigation-accordion">
<!-- Main -->
<li class="navigation-header"><span>Main Menu</span> <i class="icon-menu" title="Main pages"></i></li>
<li><a href="{{base_url('Superuser/index')}}"><i class="icon-home4"></i> <span>Dashboard</span></a></li>
<li><a href="changelog.html"><i class="icon-calendar"></i> <span>My - Activities </a>
<ul>
<li><a href="#"><i class="icon-calendar"></i><span>Amalan Yaumiah</span></a></li>
<li><a href="#"><i class="icon-stack4"></i><span>Agenda Kegiatan</span></a></li>
<li><a href="#"><i class="icon-quill4"></i><span>Catatan Saya</span></a></li>
</ul>
</li>
<li><a href="#"><i class="icon-users4"></i> <span>My - Mentoring</span></a>
<ul>
<li><a href="{{base_url('Superuser/mymentoring/silabus_mentoring')}}"><i class="icon-book"></i><span>Silabus Mentoring</span></a></li>
<li><a href="{{base_url('Superuser/mymentoring/lihat_kelas')}}"><i class="icon-tree7"></i><span>Kelas Mentoring</span></a></li>
</ul>
</li>
<li><a href="#"><i class="icon-people"></i> <span>My - Ukmki</span></a>
<ul>
<li><a href="#"><i class="icon-users"></i><span>Anggota Saya</span></a></li>
<li><a href="#"><i class="icon-statistics"></i><span>Statistik Anggota</span></a></li>
</ul>
</li>
<li><a href="#"><i class="icon-accessibility"></i> <span>My - Profile</span></a></li>
<!-- /main -->
</ul>
</div>
</div>
<!-- /main navigation -->
</div>
</div>
<!-- /main sidebar -->
@break
@case('mentoring')
<!-- Page container -->
<div class="page-container">
<!-- Page content -->
<div class="page-content">
<!-- Main sidebar -->
<div class="sidebar sidebar-main">
<div class="sidebar-content">
<!-- User menu -->
<div class="sidebar-user">
<div class="category-content">
<div class="media">
<a href="#" class="media-left"><img src="{{base_url('assets/images/placeholder.jpg')}}" class="img-circle img-sm" alt=""></a>
<div class="media-body">
<span class="media-heading text-semibold">{{$_nama}} </span>
<div class="text-size-mini text-muted">
<i class="icon-rating3 text-size-small"></i> {{strtoupper($_pos)}}
</div>
</div>
<div class="media-right media-middle">
<ul class="icons-list">
<li>
<a href="#"><i class="icon-cog3"></i></a>
</li>
</ul>
</div>
</div>
</div>
</div>
<!-- /user menu -->
<!-- Main navigation -->
<div class="sidebar-category sidebar-category-visible">
<div class="category-content no-padding">
<ul class="navigation navigation-main navigation-accordion">
<!-- Main -->
<li class="navigation-header"><span>Main Menu</span> <i class="icon-menu" title="Main pages"></i></li>
<li><a href="{{base_url('Superuser/index')}}"><i class="icon-home4"></i> <span>Dashboard</span></a></li>
<li><a href="changelog.html"><i class="icon-calendar"></i> <span>My - Activities </a>
<ul>
<li><a href="#"><i class="icon-calendar"></i><span>Amalan Yaumiah</span></a></li>
<li><a href="#"><i class="icon-stack4"></i><span>Agenda Kegiatan</span></a></li>
<li><a href="#"><i class="icon-quill4"></i><span>Kas Saya</span></a></li>
<li><a href="#"><i class="icon-history"></i><span>History Saya</span></a></li>
</ul>
</li>
<li><a href="#"><i class="icon-users4"></i> <span>My - Mentoring</span></a>
<ul>
<li><a href="{{base_url('Superuser/mymentoring/silabus_mentoring')}}"><i class="icon-book"></i><span>Silabus Mentoring</span></a></li>
<li><a href="{{base_url('Superuser/mymentoring')}}"><i class="icon-tree7"></i><span>Kelas Mentoring</span></a></li>
</ul>
</li>
<li><a href="{{base_url('Superuser/myprofile')}}"><i class="icon-accessibility"></i> <span>My - Profile</span></a></li>
<!-- /main -->
</ul>
</div>
</div>
<!-- /main navigation -->
</div>
</div>
<!-- /main sidebar -->
@break
@endswitch
home.blade.php
@include('pengurus.main.menu'(@扩展('pengurus.main.template'(
@章节("标题"(主页@端部
@节("内容"(这是我的内容@端部
这可能是因为您的laravel版本，但您可以始终尝试使用if-elseif语句作为替代，https://laravel.com/docs/5.6/blade#if-语句或(https://laravel.com/docs/5.2/blade#control-结构(
尝试在项目的根目录中运行php artisan --version，并检查相应的文档