我使用WordPress 3中的本机菜单生成器构建了一个导航菜单。这是我用来渲染它的代码：

<?php wp_nav_menu( array(\'menu\' => \'Main Navigation\',\'menu_id\'=> \'headernav\',\'menu_class\'=>\'navigate\')); ?>

它完全按照我在每一页上所期望的方式呈现except 404.php。这就是它在其他地方的渲染方式：

<div class="menu-main-navigation-container"><ul id="headernav" class="navigate">

这就是它在404上的渲染方式。php：

<div class="navigate"><ul>

和404。php它列出了我网站上的每一个页面，而不是我在菜单中内置的页面。

有人知道为什么会这样吗？非常感谢您的帮助。

编辑

这是我函数中的代码。php文件：

function mytheme_setup() {

    register_nav_menus( array(
        \'main-navigation\' => \'Main Navigation\',
        \'subnav-navigation\' => \'Sub menu nav\',
        \'how-eli-works-nav\' => \'How Eli Works\'
    ) );
}
add_action( \'after_setup_theme\', \'mytheme_setup\' );

我也按照你的建议做了，然后回到菜单面板并指定了主题位置。同样的结果：事情在以前的地方运行，404。php仍处于崩溃状态。

这是从我的标题调用菜单的代码。php文件：

<?php wp_nav_menu( array(\'theme_location\' => \'main-navigation\', \'menu\' => \'Main Navigation\',\'menu_id\'=> \'headernav\',\'menu_class\'=>\'navigate\')); ?>

这是我404的代码。php文件：

<?php
get_header(); ?>


    <div id="pagecontent" class="narrowcolumn" role="main">


            <article id="post-0" class="post error404 not-found">
                <header class="entry-header">
                    <h1 class="entry-title"><?php _e( \'Oops, we couldn&rsquo;t find what you requested.\', \'twentyeleven\' ); ?></h1>
                </header>

                <div class="entry-content">
                    <p><?php _e( \'It seems we can&rsquo;t find what you&rsquo;re looking for. Perhaps searching, or one of the links below, can help.\', \'twentyeleven\' ); ?></p>

                    <?php get_search_form(); ?>

                    <?php the_widget( \'WP_Widget_Recent_Posts\', array( \'number\' => 10 ), array( \'widget_id\' => \'404\' ) ); ?>

                    <div class="widget">
                        <h2 class="widgettitle"><?php _e( \'Most Used Categories\', \'twentyeleven\' ); ?></h2>
                        <ul>
                        <?php wp_list_categories( array( \'orderby\' => \'count\', \'order\' => \'DESC\', \'show_count\' => 1, \'title_li\' => \'\', \'number\' => 10 ) ); ?>
                        </ul>
                    </div>

    </div>

<?php get_footer(); ?>

register_nav_menus( array(
    \'main-navigation\' => \'Main Navigation\',
    \'secondary-navigation\' => \'Secondary Navigation\'
) );

wp_nav_menu( array(
    \'theme_location\' => \'main-navigation\',
    \'menu_id\'=> \'headernav\',
    \'menu_class\'=>\'navigate\'
) );

function mytheme_setup() {

    // Register Nav Menu Locations
    register_nav_menus( array(
        \'main-navigation\' => \'Main Navigation\',
        \'secondary-navigation\' => \'Secondary Navigation\'
    ) );

    // Other Theme-setup functions may go here
}
add_action( \'after_setup_theme\', \'mytheme_setup\' );

<?php wp_nav_menu( array(\'theme_location\' => \'main-navigation\', \'menu\' => \'Main Navigation\',\'menu_id\'=> \'headernav\',\'menu_class\'=>\'navigate\')); ?>