问使用Outlook rest api更新事件时出错

EN

{
  "error": {
    "code": "ErrorPropertyValidationFailure",
    "message": "At least one property failed validation."
  }
}

{
"subject":"test",
"body":"<!-- converted from text -->\n<div class=\"PlainText\"> </div>",
"contentType":1,
"locationName":"",
"start":"2018-05-14T13:30:00.000Z",
"end":"2018-05-14T14:30:00.000Z",
"isAllDay":false,
"isPrivate":false,
"attendees":[
{
"name":"...",
"email":"..."
},
{
"name":"...",
"email":"..."
}
],
"reminderMinutes":[
"30"
],
"noReminder":false
}