Youtube Live API使用isDefaultBroadcast = True创建实时广播时出错

Question

我正在使用python创建一个带有api youtube流媒体的广播。 我每天都想创建一个计划视频，并使用相同的URL访问流式传输。 所以在我的代码中我添加了isDefaultBroadcast = True

# Create a liveBroadcast resource and set its title, scheduled start time,
# scheduled end time, and privacy status.
def insert_broadcast(youtube, options):
  insert_broadcast_response = youtube.liveBroadcasts().insert(
    part="snippet,status",
    body=dict(
      snippet=dict(
        title=options.broadcast_title,
        isDefaultBroadcast=True,
        scheduledStartTime=options.start_time,
        scheduledEndTime=options.end_time
      ),
      status=dict(
        privacyStatus=options.privacy_status
      )
    )
  ).execute()

但我收到了错误403

 An HTTP error 403 occurred:
{
 "error": {
  "errors": [
   {
    "domain": "youtube.liveBroadcast",
    "reason": "liveBroadcastBindingNotAllowed",
    "message": "The binding is not allowed"
   }
  ],
  "code": 403,
  "message": "The binding is not allowed"
 }
}

我在liveStream部分添加了isDefaultStream，没有任何问题。

知道出了什么问题吗？