Hello dear bluez developers, I have a problem with the Import function in bluetooth mesh: I have a python program ble_mesh_node.py which runs as root started by systemctl. I'm initializing all the required stuff (as in the mesh test python script), start the mainloop in another thread, and then the import function is called. There I'm getting an Error.NoReply exception as you can seen in the output: /2019-08-30 14:23:52,883 - ble_mesh_node.py:729 - ERROR - org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.// //Traceback (most recent call last):// // File "/home/pi/smarthome/gui/ble_mesh_node/ble_mesh_node.py", line 793, in <module>// // with open('config.json', 'r') as f:// //FileNotFoundError: [Errno 2] No such file or directory: 'config.json'// // //During handling of the above exception, another exception occurred:// // //Traceback (most recent call last):// // File "/home/pi/smarthome/gui/ble_mesh_node/ble_mesh_node.py", line 724, in import_node// // iv_index, unicast)// // File "/home/pi/smarthome/local/env/lib/python3.7/site-packages/dbus/proxies.py", line 70, in __call__// // return self._proxy_method(*args, **keywords)// // File "/home/pi/smarthome/local/env/lib/python3.7/site-packages/dbus/proxies.py", line 145, in __call__// // **keywords)// // File "/home/pi/smarthome/local/env/lib/python3.7/site-packages/dbus/connection.py", line 651, in call_blocking// // message, timeout)// //*dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.*/ That has the following relevant python code: / token = -1// // try:// // with open('config.json', 'r') as f:// // data = json.load(f)// // token = int(data['token'])// // except IOError:// // try:// ////*token = bleMeshNode.import_node()*// // except:// // pass// // if token != -1:// // with open('config.json', 'w') as f:// // data = {}// // data['token'] = token// // data = json.dump(data, f)/ However, it seems that only the return value (token) cannot be sent back, because the node.json file can be successfully created with meaningful content and also a token is created which I printed in the create_node_ready_cb function: /static void create_node_ready_cb(void *user_data, int status,// //struct mesh_node *node)// //{// // struct l_dbus_message *reply;// // struct l_dbus_message *pending_msg;// // const uint8_t *token;// // // pending_msg = l_queue_find(pending_queue, simple_match, user_data);// // if (!pending_msg){// // l_debug("pending msg\n");// // return;// // }// // // if (status != MESH_ERROR_NONE) {// // l_debug("status != \n");// // reply = dbus_error(pending_msg, status, NULL);// // goto done;// // }// // // node_attach_io(node, mesh.io);// // // reply = l_dbus_message_new_method_return(pending_msg);// // token = node_get_token(node);// ////*l_debug("token %i \n", *token);*// // // l_debug();// // l_dbus_message_set_arguments(reply, "t", l_get_be64(token));// // //done:// // l_dbus_send(dbus_get_bus(), reply);// // l_queue_remove(pending_queue, pending_msg);// //}/ here the output from the journalctl: Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] < 6c 02 01 01 c0 01 00 00 08 00 00 00 3d 00 00 00 l...........=... Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 06 01 73 00 04 00 00 00 3a 31 2e 34 00 00 00 00 ..s.....:1.4.... Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 05 01 75 00 06 00 00 00 08 01 67 00 0d 61 7b 6f ..u.......g..a{o Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 61 7b 73 61 7b 73 76 7d 7d 7d 00 00 00 00 00 00 a{sa{sv}}}...... Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 07 01 73 00 04 00 00 00 3a 31 2e 38 00 00 00 00 ..s.....:1.8.... Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] b8 01 00 00 00 00 00 00 0d 00 00 00 2f 61 74 2f ............/at/ Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 73 6d 61 72 74 68 6f 6d 65 00 00 00 6c 00 00 00 smarthome...l... Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 1b 00 00 00 6f 72 67 2e 62 6c 75 65 7a 2e 6d 65 ....org.bluez.me Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 73 68 2e 41 70 70 6c 69 63 61 74 69 6f 6e 31 00 sh.Application1. Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 44 00 00 00 00 00 00 00 09 00 00 00 43 6f 6d 70 D...........Comp Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 61 6e 79 49 44 00 01 71 00 00 fe ff 00 00 00 00 anyID..q........ Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 09 00 00 00 50 72 6f 64 75 63 74 49 44 00 01 71 ....ProductID..q Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 00 00 01 00 00 00 00 00 09 00 00 00 56 65 72 73 ............Vers Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 69 6f 6e 49 44 00 01 71 00 00 01 00 00 00 00 00 ionID..q........ Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 13 00 00 00 2f 61 74 2f 73 6d 61 72 74 68 6f 6d ..../at/smarthom Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 65 2f 61 67 65 6e 74 00 7e 00 00 00 00 00 00 00 e/agent.~....... Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 1e 00 00 00 6f 72 67 2e 62 6c 75 65 7a 2e 6d 65 ....org.bluez.me Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 73 68 2e 50 72 6f 76 69 73 69 6f 6e 41 67 65 6e sh.ProvisionAgen Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 74 31 00 00 56 00 00 00 0c 00 00 00 43 61 70 61 t1..V.......Capa Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 62 69 6c 69 74 69 65 73 00 02 61 73 00 00 00 00 bilities..as.... Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 10 00 00 00 0b 00 00 00 6f 75 74 2d 6e 75 6d 65 ........out-nume Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 72 69 63 00 00 00 00 00 0d 00 00 00 4f 75 74 4f ric.........OutO Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 66 42 61 6e 64 49 6e 66 6f 00 02 61 73 00 00 00 fBandInfo..as... Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 0a 00 00 00 05 00 00 00 6f 74 68 65 72 00 00 00 ........other... Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 13 00 00 00 2f 61 74 2f 73 6d 61 72 74 68 6f 6d ..../at/smarthom Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 65 2f 65 6c 65 30 30 00 70 00 00 00 00 00 00 00 e/ele00.p....... Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 17 00 00 00 6f 72 67 2e 62 6c 75 65 7a 2e 6d 65 ....org.bluez.me Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 73 68 2e 45 6c 65 6d 65 6e 74 31 00 50 00 00 00 sh.Element1.P... Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 05 00 00 00 49 6e 64 65 78 00 01 79 00 00 00 00 ....Index..y.... Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 06 00 00 00 4d 6f 64 65 6c 73 00 02 61 71 00 00 ....Models..aq.. Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 0a 00 00 00 00 10 01 10 03 10 0b 10 11 10 00 00 ................ Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 0c 00 00 00 56 65 6e 64 6f 72 4d 6f 64 65 6c 73 ....VendorModels Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 00 05 61 28 71 71 29 00 00 00 00 00 00 00 00 00 ..a(qq)......... Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: mesh/node.c:get_app_properties() path /at/smarthome Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: mesh/node.c:get_element_properties() path /at/smarthome/ele00 Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: mesh/mesh-config-json.c:mesh_config_create() New node config /tmp/0a0102030405060708090a0b0c0d0e0f/node.json Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: mesh/cfgmod-server.c:cfgmod_server_init() 00 Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: mesh/keyring.c:keyring_put_remote_dev_key() Put Dev Key /tmp/0a0102030405060708090a0b0c0d0e0f/dev_keys/0070 Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: mesh/keyring.c:keyring_put_net_key() Put Net Key /tmp/0a0102030405060708090a0b0c0d0e0f/net_keys/000 Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: Register io cb Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: recv_register 1 Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: recv_register 3 Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: Send SNB on network 000 *Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: mesh/mesh.c:create_node_ready_cb() token 239* Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: mesh/mesh.c:create_node_ready_cb() Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] > 6c 02 01 01 08 00 00 00 07 00 00 00 1f 00 00 00 l............... Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 06 01 73 00 04 00 00 00 3a 31 2e 38 00 00 00 00 ..s.....:1.8.... Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 05 01 75 00 07 00 00 00 08 01 67 00 01 74 00 00 ..u.......g..t.. Aug 30 14:23:52 raspberrypi bluetooth-meshd[439]: [DBUS] 42 58 aa 3b 7e e8 72 ef BX.;~.r. When I'm starting the program once again, instead of the Error.NoReply I get an AlreadyExists Error. One thing what I'm a bit wondering is, that the exception is thrown at the same time (14:23:52) as the node was created... This brings me to the conclusion, that there is only a problem with the return value/message. In the past I tried also the attach, join, create_network etc. functions and I got always the same NoReplay Error, although I'm running the program as root.. I hope you can help me to bring my private smartHome to run... Best regards from Austria, Fabian Mauroner