HELP:delegate TransportListener onConnect not fired!

[walley139]

mediasoup version = 3.0.8

firstly I request "getRouterRtpCapabilities",and it responses successfully.Then call device load,request"createWebRtcTransport",

###response:
{
data = {
dtlsParameters = {
fingerprints = (
{
algorithm = "sha-1";
value = "82:7A:47:2D:F4:52:C9:54:D9:72:36:41:00:8F:36:43:69:DB:67:A6";
},
{
algorithm = "sha-224";
value = "F0:D8:0F:AB:64:06:82:2C:F3:4E:65:69:5B:01:CD:FC:67:F3:94:CB:17:43:90:A0:83:F7:A7:A6";
},
{
algorithm = "sha-256";
value = "27:7E:B9:B4:7A:7C:7A:53:A6:1D:4E:CF:18:10:86:33:C4:31:7A:C7:6F:C2:4C:FC:6E:A3:EC:E7:30:BB:D9:96";
},
{
algorithm = "sha-384";
value = "F1:E6:66:FD:11:A8:96:D7:83:40:D7:47:1F:86:3D:8D:4F:B4:53:AA:0B:57:69:7C:CD:70:C2:F0:E1:05:03:BF:9A:D5:62:17:F2:FA:1D:10:88:B3:2E:9F:7E:47:43:26";
},
{
algorithm = "sha-512";
value = "9A:F0:AB:F0:EA:1F:C3:83:C8:D9:9D:11:42:70:F3:1E:33:FC:F8:21:87:FE:98:F8:7C:25:FA:64:5B:F3:50:6B:2D:D8:CC:79:12:60:F5:D9:A1:AD:CA:1F:75:2D:5F:DA:D4:23:01:8C:CC:B1:B3:81:71:02:D2:76:0D:59:E3:0A";
}
);
role = auto;
};
iceCandidates = (
{
foundation = udpcandidate;
ip = "180.167.180.242";
port = 40008;
priority = 1076302079;
protocol = udp;
type = host;
}
);
iceParameters = {
iceLite = 1;
password = 6v5rl8h6n22ehvmtjkq8i16bcjrjykza;
usernameFragment = tq42or4xqltdkaxc;
};
id = "bcb17cfc-a495-4dfd-9464-d2e4da2bf4c1";
sctpParameters = {
MIS = 1024;
OS = 1024;
isDataChannel = 1;
maxMessageSize = 262144;
port = 5000;
sctpBufferedAmount = 0;
sendBufferSize = 262144;
};
};
id = 100003;
ok = 1;
response = 1;
}

###then I call createRecvTransport and request join,
###response:

data = {
appData = {
};
dataProducerId = "aa2025f8-79c3-4de1-95b5-0f09c27e5553";
id = "051ddea9-4be0-4a0f-a02b-4e85298b7c68";
label = bot;
peerId = "";
protocol = "";
sctpStreamParameters = {
ordered = 1;
streamId = 0;
};
};
id = 8558358;
method = newDataConsumer;
request = 1;
}

###but the delegate does not fired ,and I cann't call function of connect .

code :

self.recvTransport = [self.device createRecvTransport:self.delegate id:transportId iceParameters:[iceParameter wd_jsonPrettyStringEncoded] iceCandidates:[iceCandidatesArray wd_jsonPrettyStringEncoded] dtlsParameters:[dtlsParameters wd_jsonPrettyStringEncoded] sctpParameters:[sctpParameters wd_jsonPrettyStringEncoded] options:nil appData:nil];

 [self join];