CreateLiveRoomActivity.class 这个类131行报错

CreateLiveRoomActivity.class 这个类131行报错   我就是把appkey修改成我自己的了  就不能创建视频房间了 报错如下：
 
 
 {"error":"invalid_parameter","timestamp":1537509349995,"duration":0,"exception":"com.easemob.group.exception.InvalidParameterException","error_description":"streamURL has not been initialized."}