How to apply TLS support to PJSIP for ios

I am creating a VoIP application for IOS. i am using the pjsip open source libraries for this . I am able to connect when i configure the pjsip to UDP . But i always get error code 171060 [Error creating transport: Unsupported transport (PJSIP_EUNSUPTRANSPORT) [status=171060]]

I get it that somewhere I am making mistake while configuring the file settings for TLS. This is what i am doing.

pjsua_transport_config cfg;
    pjsua_transport_config_default(&cfg);
    cfg.port = 5061;
    cfg.tls_setting.ca_list_file = pj_str((char*)[[[NSBundle mainBundle] pathForResource:@"ca_list" ofType:@"pem"] cStringUsingEncoding:NSUTF8StringEncoding]); // location of cacert.pem

    cfg.tls_setting.cert_file = pj_str((char*)[[[NSBundle mainBundle] pathForResource:@"certificate" ofType:@"pem"] cStringUsingEncoding:NSUTF8StringEncoding]); // location of cacert.pem

    cfg.tls_setting.privkey_file = pj_str((char*)[[[NSBundle mainBundle] pathForResource:@"pvkey" ofType:@"pem"] cStringUsingEncoding:NSUTF8StringEncoding]); //

    cfg.tls_setting.password = pj_str("myPassword");
    cfg.tls_setting.verify_client = PJ_TRUE;
    cfg.tls_setting.verify_server = PJ_TRUE;
    cfg.tls_setting.method = PJSIP_TLSV1_METHOD;

    //
    NSLog(@"******TLS********");
    //pjsua_transport_id  transport_id = 1;
    status = pjsua_transport_create(PJSIP_TRANSPORT_TLS , &cfg, NULL);

    if (status != PJ_SUCCESS) error_exit("Error creating transport", status);

I have searched up and down on google on how to resolve this issue but i haven't come across any concrete solution thus far. Please if anyone knows can you help me??

Solved it. The newly created frameworks were not getting added. And were not FAT libs so the problem rose.