我正在尝试使用以下API：
GET https://www.yammer.com/api/v1/search.json?search_group=xxxx
但是我总是得到
{
"count": {
"messages": 0,
"groups": 0,
"topics": 0,
"uploaded_files": 0,
"users": 0
},
"messages": {
"threaded_extended": {},
"messages": [],
"references": [],
"external_references": [],
"meta": {
"older_available": false,
"requested_poll_interval": 60,
"last_seen_message_id": null,
"current_user_id": xxxx,
"followed_references": [],
"ymodules": [],
"newest_message_details": null
}
},
"groups": [],
"topics": [],
"uploaded_files": [],
"users": [],
"search_uuid": "XXX"
}，
尽管我确实有小组，消息等，而且当我尝试击中这个问题时，https://www.yammer.com/api/v1/groups.json我确实得到了正确的答复。
可能是什么问题？