Javascript WP引导程序无法工作

我似乎无法使用WP引导Navwalker在我的菜单上进行折叠

下面是我的代码：

<div class="blog-masthead">
  <div class="container">
    <nav class="blog-nav" role="navigation">
      <div class="container-fluid">
        <div class="navbar-header">
          <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
          </button>
        </div>
      </div>
      <?php
       wp_nav_menu( array(
           'menu'              => 'primary',
           'theme_location'    => 'primary',
           'depth'             => 2,
           'container'         => 'div',
           'container_class'   => 'collapse navbar-collapse',
           'container_id'      => 'bs-example-navbar-collapse-1',
           'menu_class'        => 'nav navbar-nav',
           'fallback_cb'       => 'wp_bootstrap_navwalker::fallback',
           'walker'            => new WP_Bootstrap_Navwalker())
       );
      ?>
    </nav>
  </div>
</div>

还有我的bootstrap.min.js：

<script src="<?php bloginfo('template_url'); ?>/js/bootstrap.min.js"></script>

---

当我将WP_Bootstrap_Navwalker（））和WP_Bootstrap_Navwalker.php更改为所有小写字母时，我能够解决这个问题

<script src="<?php bloginfo('template_url'); ?>/js/bootstrap.min.js"></script>