Undefined symbols for architecture x86_64: when running my project with iOS-ngn-stack as sub-projected.

[sohailmansoori]

Can anyone help me on this ,
Its roadblocker for my project.
I googled it lots of developers posted same issues but not replied by anyone .
For more detail or having a look on code you guys can reach me on my skype.
Skype Id - live:85b341f7d8101770
Mail id - smansoori12@gmail.com

ISSUE -
I did subproject of iOS-ngn-stack in my project to use its calling methods
And provided Header search path and lib path in my project setting .
when I compile my project it gives some architecture error x86_64: -
which is coming for those doubango library .

I am using Xcode - 12.2
Running it in simulator - iPhone 12 (OS -14.2)

---

Undefined symbols for architecture x86_64:
"_SSL_accept", referenced from:
_tnet_tls_socket_accept in libtinyNET.a(tnet_tls.o)
"_SSL_set_fd", referenced from:
_tnet_tls_socket_create in libtinyNET.a(tnet_tls.o)
"_SSL_CTX_free", referenced from:
__tnet_transport_ssl_deinit in libtinyNET.a(tnet_transport.o)
"_SSL_CTX_use_PrivateKey_file", referenced from:
_tnet_transport_tls_set_certs in libtinyNET.a(tnet_transport.o)
"_SSL_CTX_load_verify_locations", referenced from:
_tnet_transport_tls_set_certs in libtinyNET.a(tnet_transport.o)
"_SSLv23_server_method", referenced from:
__tnet_transport_ssl_init in libtinyNET.a(tnet_transport.o)
"_SSL_CTX_set_cipher_list", referenced from:
__tnet_transport_ssl_init in libtinyNET.a(tnet_transport.o)
"_SSL_CTX_ctrl", referenced from:
__tnet_transport_ssl_init in libtinyNET.a(tnet_transport.o)
"_SSL_CTX_new", referenced from:
__tnet_transport_ssl_init in libtinyNET.a(tnet_transport.o)
"_SSL_free", referenced from:
_tnet_dtls_socket_dtor in libtinyNET.a(tnet_dtls.o)
_tnet_tls_socket_dtor in libtinyNET.a(tnet_tls.o)
"_SSL_do_handshake", referenced from:
_tnet_dtls_socket_do_handshake in libtinyNET.a(tnet_dtls.o)
"_SSL_state", referenced from:
_tnet_dtls_socket_do_handshake in libtinyNET.a(tnet_dtls.o)
_tnet_tls_socket_recv in libtinyNET.a(tnet_tls.o)
"_SSL_CTX_get_verify_mode", referenced from:
_tnet_dtls_socket_create in libtinyNET.a(tnet_dtls.o)
"_SSL_ctrl", referenced from:
_tnet_dtls_socket_create in libtinyNET.a(tnet_dtls.o)
"_SSL_get_peer_certificate", referenced from:
__tnet_dtls_socket_is_remote_cert_fp_match in libtinyNET.a(tnet_dtls.o)
"_SSL_connect", referenced from:
_tnet_tls_socket_connect in libtinyNET.a(tnet_tls.o)
"_SSL_get_verify_result", referenced from:
__tnet_dtls_socket_is_remote_cert_fp_match in libtinyNET.a(tnet_dtls.o)
"OBJC_CLASS$_AVAudioPlayer", referenced from:
objc-class-ref in libios_ngn_stack.a(NgnSoundService.o)
"_SSL_set_accept_state", referenced from:
_tnet_dtls_socket_set_setup in libtinyNET.a(tnet_dtls.o)
"_SSL_set_read_ahead", referenced from:
_tnet_dtls_socket_create in libtinyNET.a(tnet_dtls.o)
"_SSL_new", referenced from:
_tnet_dtls_socket_create in libtinyNET.a(tnet_dtls.o)
_tnet_tls_socket_create in libtinyNET.a(tnet_tls.o)
"_SSL_set_bio", referenced from:
_tnet_dtls_socket_create in libtinyNET.a(tnet_dtls.o)
"_SSL_write", referenced from:
_tnet_tls_socket_write in libtinyNET.a(tnet_tls.o)
"_SSL_CTX_set_tlsext_use_srtp", referenced from:
_tnet_transport_dtls_use_srtp in libtinyNET.a(tnet_transport.o)
"_SSL_get_wbio", referenced from:
_tnet_dtls_socket_create in libtinyNET.a(tnet_dtls.o)
"_SSL_library_init", referenced from:
_tnet_startup in libtinyNET.a(tnet.o)
"_SSL_get_selected_srtp_profile", referenced from:
_tnet_dtls_socket_do_handshake in libtinyNET.a(tnet_dtls.o)
"_DTLSv1_method", referenced from:
__tnet_transport_ssl_init in libtinyNET.a(tnet_transport.o)
"_SSL_set_connect_state", referenced from:
_tnet_dtls_socket_set_setup in libtinyNET.a(tnet_dtls.o)
"_SSLv23_client_method", referenced from:
__tnet_transport_ssl_init in libtinyNET.a(tnet_transport.o)
"_SSL_set_ex_data", referenced from:
_tnet_dtls_socket_create in libtinyNET.a(tnet_dtls.o)
"OBJC_CLASS$_AVAudioSession", referenced from:
objc-class-ref in libios_ngn_stack.a(NgnSoundService.o)
objc-class-ref in libtinyDAV.a(tdav_apple.o)
"_SSL_load_error_strings", referenced from:
_tnet_startup in libtinyNET.a(tnet.o)
"_SSL_get_error", referenced from:
_tnet_dtls_socket_do_handshake in libtinyNET.a(tnet_dtls.o)
_tnet_dtls_socket_handle_incoming_data in libtinyNET.a(tnet_dtls.o)
_tnet_tls_socket_connect in libtinyNET.a(tnet_tls.o)
_tnet_tls_socket_accept in libtinyNET.a(tnet_tls.o)
_tnet_tls_socket_write in libtinyNET.a(tnet_tls.o)
_tnet_tls_socket_recv in libtinyNET.a(tnet_tls.o)
"_SSL_read", referenced from:
_tnet_tls_socket_recv in libtinyNET.a(tnet_tls.o)
"_SSL_export_keying_material", referenced from:
_tnet_dtls_socket_do_handshake in libtinyNET.a(tnet_dtls.o)
"_SSL_set_verify", referenced from:
_tnet_dtls_socket_create in libtinyNET.a(tnet_dtls.o)
_tnet_dtls_socket_use_srtp in libtinyNET.a(tnet_dtls.o)
"_SSL_CTX_use_certificate_file", referenced from:
_tnet_transport_tls_set_certs in libtinyNET.a(tnet_transport.o)
"_SSL_CTX_set_default_passwd_cb_userdata", referenced from:
_tnet_transport_tls_set_certs in libtinyNET.a(tnet_transport.o)
"_SSL_shutdown", referenced from:
_tnet_dtls_socket_dtor in libtinyNET.a(tnet_dtls.o)
_tnet_tls_socket_dtor in libtinyNET.a(tnet_tls.o)
"_AVAudioSessionCategoryPlayAndRecord", referenced from:
-[NgnSoundService stopKeepAwakeSound] in libios_ngn_stack.a(NgnSoundService.o)
_tdav_apple_init in libtinyDAV.a(tdav_apple.o)
"_SSL_pending", referenced from:
_tnet_tls_socket_recv in libtinyNET.a(tnet_tls.o)
"_SSL_CTX_check_private_key", referenced from:
_tnet_transport_tls_set_certs in libtinyNET.a(tnet_transport.o)
"_SSL_get_ex_data", referenced from:
__tnet_dtls_verify_cert in libtinyNET.a(tnet_dtls.o)
"_SSL_CTX_set_verify", referenced from:
__tnet_transport_ssl_init in libtinyNET.a(tnet_transport.o)
_tnet_transport_tls_set_certs in libtinyNET.a(tnet_transport.o)
"_AVAudioSessionCategoryPlayback", referenced from:
-[NgnSoundService playKeepAwakeSoundLooping:] in libios_ngn_stack.a(NgnSoundService.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Thanks in advance.