无法删除Facebook测试帐户

Question

我使用以下代码删除用户：

  https://graph.facebook.com/TEST_USER_ID?
  method=delete
  &access_token=TEST_USER_ACCESS_TOKEN (OR) APP_ACCESS_TOKEN

然而它一直告诉我：

{
   "error": {
      "message": "An unexpected error has occurred. Please retry your request later.",
      "type": "OAuthException",
      "code": 2
   }
}