WARNING - [tb_gateway_service.py] - Connector implementation not found for UDP Connector

[corlinski]

Describe the issue I've created a sample UDP connector and enabled it according to: https://thingsboard.io/docs/iot-gateway/custom/ When starting IoT GW I'm getting errors: Mar 04 14:35:05 fliot-ns-prod-01 python3[8910]: ""2021-03-04 14:35:05" - WARNING - [tb_gateway_service.py] - tb_gateway_service - 312 - Connector implementation not found for UDP Connector" Mar 04 14:35:05 fliot-ns-prod-01 python3[8910]: ""2021-03-04 14:35:05" - ERROR - [tb_utility.py] - tb_utility - 114 - Import CustomSerialConnector failed, path /usr/local/lib/python3.6/site-packages/thingsboard_gateway/connectors/serial doesn't exist" Mar 04 14:35:05 fliot-ns-prod-01 python3[8910]: ""2021-03-04 14:35:05" - WARNING - [tb_gateway_service.py] - tb_gateway_service - 312 - Connector implementation not found for Custom Serial Connector"

I put connector implementation both in: /usr/local/lib/python3.6/site-packages/thingsboard_gateway/connectors/ and /var/lib/thingsboard_gateway/extensions/

I've installed IoT GW according to docs: https://thingsboard.io/docs/iot-gateway/install/rpm-installation/

Why is IoT GW looking for extension files in /usr/local/lib/python3.6/site-packages/thingsboard_gateway/connectors/ instead of /var/lib/thingsboard_gateway/extensions/ ?

Configuration (Attach your configuration file) tb_gateway.yaml

name: UDP Connector
type: udp
configuration: udp.json
class: UDPConnector

- name: Custom Serial Connector type: serial configuration: custom_serial.json class: CustomSerialConnector

udp.json { "name": "UDP connector", "devices": [ { "name": "UDP Tester", "type": "default", "converter": "UDPUplinkConverter", ...

udp_connector.py in folder: """Import libraries"""

import time from threading import Thread from random import choice from string import ascii_lowercase import socket

from thingsboard_gateway.connectors.connector import Connector, log # Import base class for connector and logger from thingsboard_gateway.tb_utility.tb_utility import TBUtility

class UDPConnector(Thread, Connector): # Define a connector class, it should inherit from "Connector" class. def init(self, gateway, config, connector_type): ...

Connector name (If you need help with some connector/converter): Custom UDP Connector Custom Serial Connector

Versions (please complete the following information):

• OS: CentOS Linux release 7.9.2009
• Thingsboard IoT Gateway version 2.5.5.2
• Python version 3.6.8

[affoltep]

I have a similar problem with the development of a custom connector. The connector should read data from the gpsd using the gpsd library for python 3 gpsd-py3

The only warning message I get is: ""2021-03-14` 18:55:13" - INFO - [tb_gateway_service.py] - tb_gateway_service - 77 - ThingsBoard IoT gateway version: 2.5.5.2" ""2021-03-14 18:55:13" - WARNING - [tb_gateway_service.py] - tb_gateway_service - 311 - Connector implementation not found for Custom Gnss Connector" ""2021-03-14 18:55:13" - INFO - [tb_gateway_service.py] - tb_gateway_service - 135 - Gatewaystarted."

I followed as well to the instructions for custom extensions. replaced the example "serial" by "gnss" I had to copy the files folder gnss (including the adapted files custom_gnss_converter.py and custom_gnss_connector.py) to the folder /usr/lib/python3/dist-packages/thingsboard-gateway/extensions/ and /usr/lib/python3/dist-packages/thingsboard-gateway/connectors/ to get rid of some import error messages.

The service is starting with the messages above. However extensions.log, connector.log remain empty.

So it seems to be the same issue as @corlinski have...thx for any help

[corlinski]

hi. I think I managed to solve the problem by changing log level to DEBUG (somewhere in the main Config folder there's a file with logging settings). it turned out there was a bug in the connector file i tried to use - one library was missing.

[affoltep]

@corlinski thx, I will try that, too