致命错误:异常异常和消息非法小部件设置ID的异常

Question

最近我注意到，当尝试加载外观>自定义时，我得到了以下错误：

Notice: Trying to get property of non-object in /home/kavwxoln/feelfreehypnosis.com/wp-includes/class-wp-customize-nav-menus.php on line 682

Fatal error: Uncaught exception 'Exception' with message 'Illegal widget 
setting ID: nav_menu_item[]' in /home/kavwxoln/feelfreehypnosis.com/wp- 
includes/customize/class-wp-customize-nav-menu-item-setting.php:171 Stack trace: #0 /home/kavwxoln/feelfreehypnosis.com/wp-includes/class-wp-customize-nav-menus.php(693): WP_Customize_Nav_Menu_Item_Setting->__construct(Object(WP_Customize_Manager), 'nav_menu_item[]', Array) #1 [internal function]: WP_Customize_Nav_Menus->customize_register(Object(WP_Customize_Manager)) #2 /home/kavwxoln/feelfreehypnosis.com/wp-includes/class-wp-hook.php(286): call_user_func_array(Array, Array) #3 /home/kavwxoln/feelfreehypnosis.com/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters('', Array) #4 /home/kavwxoln/feelfreehypnosis.com/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #5 /home/kavwxoln/feelfreehypnosis.com/wp-includes/class-wp-customize-manager.php(926): do_action('customize_regis...', Object(WP_Customize_Manager)) #6 [internal function]: WP_Customize_Manager->wp_loaded('' in /home/kavwxoln/feelfreehypnosis.com/wp-includes/customize/class-wp-customize-nav-menu-item-setting.php on line 171

我在Google上搜索并找到了这个thread，但是当应用到这里提供的答案时：

ALTER TABLE `wp_terms`
CHANGE COLUMN `term_id` `term_id` BIGINT(20) UNSIGNED NOT NULL 
AUTO_INCREMENT FIRST,
ADD PRIMARY KEY (`term_id`),
ADD INDEX `name` (`name`),
ADD INDEX `slug` (`slug`);

我从phpmyadmin那里得到了这个答案：

#1068 - Multiple primary key defined

所以我很想知道如何解决这个问题。

Answer 1

我就是这样做的：

1. 通过Phpmyadmin转到数据库，然后只从wp_terms表进行备份！
2. 转到SQL编辑器并粘贴以下代码： 创建表wp_terms ( term_id bigint(20)无符号非空AUTO_INCREMENT，name varchar(200) NULL ''，slug varchar(200) NULL‘，term_group bigint(10) NULL '0'，主键(term_id)，唯一密钥slug (slug)，KEY name (name) ) ENGINE=MyISAM AUTO_INCREMENT=603默认值CHARSET=utf8；
3. 从.sql文件中打开先前保存的备份，并使用phpmyadmin通过SQL编辑器插入备份。

问题解决了！

注意:只从备份中获取行，而不是整个数据库！