TypeError: Can't instantiate abstract class Listener with abstract method on_message_received

[BaslyHedi]

I'm using the Vector box VN1610, and i want to establish communication with an ECU to read a DID (service 0x22) I get an exception when initializing the communication. Uds_Channel = Uds(resId=BSC7_resId, reqId=BSC7_reqId, transportProtocol="CAN", interface="vector", appName="pythonUds", channel='0') File "C:\Users\hba12\AppData\Roaming\Python\Python39\site-packages\uds\uds_communications\Uds\Uds.py", line 43, in init self.tp = tpFactory(self.transportProtocol, configPath=configPath, kwargs) File "C:\Users\hba12\AppData\Roaming\Python\Python39\site-packages\uds\uds_communications\TransportProtocols\TpFactory.py", line 37, in call return CanTp(configPath=configPath, kwargs) File "C:\Users\hba12\AppData\Roaming\Python\Python39\site-packages\uds\uds_communications\TransportProtocols\Can\CanTp.py", line 96, in init self.connection = canConnectionFactory(self.callback_onReceive, File "C:\Users\hba12\AppData\Roaming\Python\Python39\site-packages\uds\uds_communications\TransportProtocols\Can\CanConnectionFactory.py", line 52, in call CanConnectionFactory.connections[connectionKey] = CanConnection(callback, filter, File "C:\Users\hba12\AppData\Roaming\Python\Python39\site-packages\uds\uds_communications\TransportProtocols\Can\CanConnection.py", line 21, in init listener = can.Listener() TypeError: Can't instantiate abstract class Listener with abstract method on_message_received

Support is much appreciated

[BaslyHedi]

@richClubb, Could you please take a look here and give me your analysis to the issue. Thanks in advance. I'm using Python 3.9.

[BaslyHedi]

in Listener.py the abstract-method is implemented as follow

Could this be the root cause of the issue ?

There is no definition of on_message_received in Listener.py, i think it should be defined at least in one of the child-classes/sub-classes.

[AGUERY]

Hello, any news about this issue ? I have the same case

Thanks

[MarcoAzzolini]

hello, i have the same case, do you have any suggestion?

thanks!

[davidsantos99mec]

Hello,

I had the same problem and found this issue with the same problem and some helpfull suggestions https://github.com/hardbyte/python-can/issues/900