实时通讯demo登陆之后点击聊天控制台报错SideNav 'online' is not available! Did you use md-component-id='online'?

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[JS SDK]实时通讯demo点击聊天控制台报错
angular.js?3437:15536 SideNav 'online' is not available! Did you use md-component-id='online'?