title: Google Calendar API event insert always return 404 "not found" error
body: <p>I tried the calendar insert example from here : <a href="https://developers.google.com/google-apps/calendar/v3/reference/events/insert#examples" rel="noreferrer">https://developers.google.com/google-apps/calendar/v3/reference/events/insert#examples</a>
      No matter which property i use, i always get the 404 "not found" error. Anyone can shed some light on this? Many thanks!!! </p>
  
  <pre><code>POST https://www.googleapis.com/calendar/v3/calendars/test/events?sendNotifications=false&amp;fields=start&amp;key={YOUR_API_KEY}
  
  Content-Type:  application/json
  Authorization:  Bearer ya29.AHES6ZQaT3-Tj_bviwaY9Xi3gDspuBbCtEKtidnZkTXuWpI
  X-JavaScript-User-Agent:  Google APIs Explorer
  
  {
   "end": {
    "date": "2012-07-11"
   },
   "start": {
    "date": "2012-07-09"
   }
  }
  </code></pre>
  
  <p>response:
  404 Not Found</p>
  
  <pre><code>{
   "error": {
    "errors": [
     {
      "domain": "global",
      "reason": "notFound",
      "message": "Not Found"
     }
    ],
    "code": 404,
    "message": "Not Found"
   }
  }
  </code></pre>