报错：Object {errCode: -1000, errMsg: "joinVoIPChat:fail: -10088, -10, join room failed. errType: 4, errCode: -12020, errMsg: invalid signature, -1"} [图片] 语音能力已开通，实在不理解问题出在哪了，麻烦官方帮忙看看 //后端签名 var str = [appId, groupId, nonceStr, timeStamp].sort().join('') var hash = CryptoJS.HmacSHA256(str, session_key) signature = CryptoJS.enc.Hex.stringify(hash) var data = { Signature: signature, NonceStr: room.NonceStr, TimeStamp: room.TimeStamp, GroupId: room.GroupId } //前端调用 wx.joinVoIPChat({         roomType:"voice",         signature:data.Signature,         nonceStr:data.NonceStr,         timeStamp:data.TimeStamp,         groupId:data.GroupId,         success(res){             console.log("加入语音房间成功",res)             Tool.OpenRecord()         },         fail(err){             console.log("加入语音房间失败",err)         }     })