Fullcalendar与Google Calendar不同步问题求助

我已经按照FullCalendar谷歌日历集成的官方文档完成了所有操作，还特意新建了一个专属日历。下面是我写的代码，其中googleCalendarApiKey和googleCalendarId我特意留空了：

<!DOCTYPE html> 
<html> 
<head> 
<meta charset='utf-8' /> 
<link href='../fullcalendar.min.css' rel='stylesheet' /> 
<link href='../fullcalendar.print.min.css' rel='stylesheet' media='print' /> 
<script src='../lib/moment.min.js'></script> 
<script src='../lib/jquery.min.js'></script> 
<script src='../fullcalendar.min.js'></script> 
<script src='fullcalendar/gcal.js'></script> 
<script> 
$(function () { 
  $('#calendar').fullCalendar({ 
    googleCalendarApiKey: '', 
    events: { 
      googleCalendarId: '' 
    } 
  }); 
}); 
</script> 
</head> 
<body> 
<div id='calendar'></div> 
</body> 
</html>

已解决 查看评论获取答案内容

内容的提问来源于stack exchange，提问作者Tejas Kulkarni