Reader with no 'AirProtocolLLRPCapabilities'

[cnieves1]

I'm connecting to a reader, and got this logging error:

--- Logging error ---
Traceback (most recent call last):
  File "C:\Python312\Lib\logging\__init__.py", line 1160, in emit
    msg = self.format(record)
          ^^^^^^^^^^^^^^^^^^^
  File "C:\Python312\Lib\logging\__init__.py", line 999, in format
    return fmt.format(record)
           ^^^^^^^^^^^^^^^^^^
  File "C:\Python312\Lib\logging\__init__.py", line 703, in format
    record.message = record.getMessage()
                     ^^^^^^^^^^^^^^^^^^^
  File "C:\Python312\Lib\logging\__init__.py", line 392, in getMessage
    msg = msg % self.args
          ~~~~^~~~~~~~~~~
  File "C:\Users\user\test\sllurp-measurements\sllurp\llrp.py", line 127, in __repr__
    ret = llrp_data2xml(self.msgdict)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\user\test\sllurp-measurements\sllurp\llrp_proto.py", line 3590, in llrp_data2xml
    ans += __llrp_data2xml(msg[p], p)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\user\test\sllurp-measurements\sllurp\llrp_proto.py", line 3577, in __llrp_data2xml
    res += __llrp_data2xml(sub, p, level + 1)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\user\test\sllurp-measurements\sllurp\llrp_proto.py", line 3569, in __llrp_data2xml
    fields = Message_struct[name]['fields']
             ~~~~~~~~~~~~~~^^^^^^
KeyError: 'AirProtocolLLRPCapabilities'
Call stack:
  File "C:\Users\user\test\example.py", line 470, in <module>
    main(cmd_args)
  File "C:\Users\user\test\example.py", line 263, in main
    reader = Reader(args.host[0])
  File "C:\Users\user\test\sllurp-measurements\sllurp\reader.py", line 37, in __init__
    self.startConnection()
  File "C:\Users\user\test\sllurp-measurements\sllurp\llrp.py", line 212, in startConnection
    self.getCapabilities()
  File "C:\Users\user\test\sllurp-measurements\sllurp\llrp.py", line 298, in getCapabilities
    self.capabilities = self.readLLRPMessage('GET_READER_CAPABILITIES_RESPONSE')
  File "C:\Users\user\test\sllurp-measurements\sllurp\llrp.py", line 580, in readLLRPMessage
    self.rawDataReceived(self.transport.read(self.reportTimeout()))
  File "C:\Users\user\test\sllurp-measurements\sllurp\llrp.py", line 608, in rawDataReceived
    self.handleMessage(lmsg)
  File "C:\Users\user\test\sllurp-measurements\sllurp\llrp.py", line 618, in handleMessage
    logger.debug('LLRPMessage received: %s', lmsg)
Unable to print the message and arguments - possible formatting error.
Use the traceback above to help find the error.

This can be easily solved changed line 3569 of llrp_proto.py from:

fields = Message_struct[name]['fields']

to:

fields = Message_struct[name]['fields'] if name in Message_struct else []

I don't know if this has any other implications...