plusDomains.activities.insert响应总是403访问禁止

Question

我给予读，写，登录等所有权限。但我总是得到回应：

{
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "forbidden",
    "message": "Forbidden"
   }
  ],
  "code": 403,
  "message": "Forbidden"
 }
}