bug: Polling exception error from tempdeck

[danolson1]

Overview

I just upgraded my robot software from 5.0.2 to 6.2.1, and now I've started seeing Polling exception errors. Here are a few examples copied from the output of my Jupyter Notebook file.

They're mostly the same, but have some small differences at the end, so I'm posting a few of them.

[opentrons.hardware_control.poller:_poll_once():87]ERROR: Polling exception Traceback (most recent call last): File "usr/lib/python3.7/site-packages/opentrons/hardware_control/poller.py", line 83, in _poll_once File "usr/lib/python3.7/site-packages/opentrons/hardware_control/modules/tempdeck.py", line 283, in read File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 134, in get_temperature File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 185, in _send_command File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 136, in send_command File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 170, in send_data File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 190, in _send_data File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/async_serial.py", line 93, in read_until File "usr/lib/python3.7/concurrent/futures/thread.py", line 57, in run File "usr/lib/python3.7/site-packages/serial/serialutil.py", line 663, in read_until File "usr/lib/python3.7/site-packages/serial/serialposix.py", line 596, in read serial.serialutil.SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)

[opentrons.hardware_control.poller:_poll_once():87]ERROR: Polling exception Traceback (most recent call last): File "usr/lib/python3.7/site-packages/opentrons/hardware_control/poller.py", line 83, in _poll_once File "usr/lib/python3.7/site-packages/opentrons/hardware_control/modules/tempdeck.py", line 283, in read File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 134, in get_temperature File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 185, in _send_command File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 136, in send_command File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 170, in send_data File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 190, in _send_data File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/async_serial.py", line 93, in read_until File "usr/lib/python3.7/concurrent/futures/thread.py", line 57, in run File "usr/lib/python3.7/site-packages/serial/serialutil.py", line 663, in read_until File "usr/lib/python3.7/site-packages/serial/serialposix.py", line 596, in read serial.serialutil.SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)

[opentrons.hardware_control.poller:_poll_once():87]ERROR: Polling exception Traceback (most recent call last): File "usr/lib/python3.7/site-packages/opentrons/drivers/utils.py", line 177, in parse_number ValueError: could not convert string to float: 'oeC2.5' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "usr/lib/python3.7/site-packages/opentrons/hardware_control/poller.py", line 83, in _poll_once File "usr/lib/python3.7/site-packages/opentrons/hardware_control/modules/tempdeck.py", line 283, in read File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 137, in get_temperature File "usr/lib/python3.7/site-packages/opentrons/drivers/utils.py", line 62, in parse_temperature_response File "usr/lib/python3.7/site-packages/opentrons/drivers/utils.py", line 171, in parse_optional_number File "usr/lib/python3.7/site-packages/opentrons/drivers/utils.py", line 180, in parse_number opentrons.drivers.utils.ParseError: ParseError(error_message=Unexpected argument to parse_number, parse_source=oeC2.5)

[opentrons.hardware_control.poller:_poll_once():87]ERROR: Polling exception Traceback (most recent call last): File "usr/lib/python3.7/site-packages/opentrons/hardware_control/poller.py", line 83, in _poll_once File "usr/lib/python3.7/site-packages/opentrons/hardware_control/modules/tempdeck.py", line 283, in read File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 134, in get_temperature File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 185, in _send_command File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 136, in send_command File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 170, in send_data File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 190, in _send_data File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/async_serial.py", line 93, in read_until File "usr/lib/python3.7/concurrent/futures/thread.py", line 57, in run File "usr/lib/python3.7/site-packages/serial/serialutil.py", line 663, in read_until File "usr/lib/python3.7/site-packages/serial/serialposix.py", line 596, in read serial.serialutil.SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)

[opentrons.hardware_control.poller:_poll_once():87]ERROR: Polling exception Traceback (most recent call last): File "usr/lib/python3.7/site-packages/opentrons/hardware_control/poller.py", line 83, in _poll_once File "usr/lib/python3.7/site-packages/opentrons/hardware_control/modules/tempdeck.py", line 283, in read File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 134, in get_temperature File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 185, in _send_command File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 136, in send_command File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 170, in send_data File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 190, in _send_data File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/async_serial.py", line 93, in read_until File "usr/lib/python3.7/concurrent/futures/thread.py", line 57, in run File "usr/lib/python3.7/site-packages/serial/serialutil.py", line 663, in read_until File "usr/lib/python3.7/site-packages/serial/serialposix.py", line 596, in read serial.serialutil.SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)

[opentrons.hardware_control.poller:_poll_once():87]ERROR: Polling exception Traceback (most recent call last): File "usr/lib/python3.7/site-packages/opentrons/hardware_control/poller.py", line 83, in _poll_once File "usr/lib/python3.7/site-packages/opentrons/hardware_control/modules/tempdeck.py", line 283, in read File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 134, in get_temperature File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 185, in _send_command File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 136, in send_command File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 170, in send_data File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 190, in _send_data File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/async_serial.py", line 93, in read_until File "usr/lib/python3.7/concurrent/futures/thread.py", line 57, in run File "usr/lib/python3.7/site-packages/serial/serialutil.py", line 663, in read_until File "usr/lib/python3.7/site-packages/serial/serialposix.py", line 596, in read serial.serialutil.SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)

[opentrons.hardware_control.poller:_poll_once():87]ERROR: Polling exception Traceback (most recent call last): File "usr/lib/python3.7/site-packages/opentrons/drivers/utils.py", line 177, in parse_number ValueError: could not convert string to float: 'n.853' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "usr/lib/python3.7/site-packages/opentrons/hardware_control/poller.py", line 83, in _poll_once File "usr/lib/python3.7/site-packages/opentrons/hardware_control/modules/tempdeck.py", line 283, in read File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 137, in get_temperature File "usr/lib/python3.7/site-packages/opentrons/drivers/utils.py", line 62, in parse_temperature_response File "usr/lib/python3.7/site-packages/opentrons/drivers/utils.py", line 171, in parse_optional_number File "usr/lib/python3.7/site-packages/opentrons/drivers/utils.py", line 180, in parse_number opentrons.drivers.utils.ParseError: ParseError(error_message=Unexpected argument to parse_number, parse_source=n.853)

[opentrons.hardware_control.poller:_poll_once():87]ERROR: Polling exception Traceback (most recent call last): File "usr/lib/python3.7/site-packages/opentrons/hardware_control/poller.py", line 83, in _poll_once File "usr/lib/python3.7/site-packages/opentrons/hardware_control/modules/tempdeck.py", line 283, in read File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 134, in get_temperature File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 185, in _send_command File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 136, in send_command File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 170, in send_data File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 190, in _send_data File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/async_serial.py", line 93, in read_until File "usr/lib/python3.7/concurrent/futures/thread.py", line 57, in run File "usr/lib/python3.7/site-packages/serial/serialutil.py", line 663, in read_until File "usr/lib/python3.7/site-packages/serial/serialposix.py", line 596, in read serial.serialutil.SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)

[opentrons.hardware_control.poller:_poll_once():87]ERROR: Polling exception Traceback (most recent call last): File "usr/lib/python3.7/site-packages/opentrons/hardware_control/poller.py", line 83, in _poll_once File "usr/lib/python3.7/site-packages/opentrons/hardware_control/modules/tempdeck.py", line 283, in read File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 134, in get_temperature File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 185, in _send_command File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 136, in send_command File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 170, in send_data File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 209, in _send_data opentrons.drivers.asyncio.communication.errors.NoResponse: /dev/ot_module_tempdeck0: No response to 'M105 '

[opentrons.hardware_control.poller:_poll_once():87]ERROR: Polling exception Traceback (most recent call last): File "usr/lib/python3.7/site-packages/opentrons/hardware_control/poller.py", line 83, in _poll_once File "usr/lib/python3.7/site-packages/opentrons/hardware_control/modules/tempdeck.py", line 283, in read File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 134, in get_temperature File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 185, in _send_command File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 136, in send_command File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 170, in send_data File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/serial_connection.py", line 190, in _send_data File "usr/lib/python3.7/site-packages/opentrons/drivers/asyncio/communication/async_serial.py", line 93, in read_until File "usr/lib/python3.7/concurrent/futures/thread.py", line 57, in run File "usr/lib/python3.7/site-packages/serial/serialutil.py", line 663, in read_until File "usr/lib/python3.7/site-packages/serial/serialposix.py", line 596, in read serial.serialutil.SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)

Then when I try to set the temperature of the tempdeck temp_module.set_temperature(50), I get this error message:

[opentrons.hardware_control.poller:_poll_once():87]ERROR: Polling exception Traceback (most recent call last): File "usr/lib/python3.7/site-packages/opentrons/drivers/utils.py", line 62, in parse_temperature_response KeyError: 'T' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "usr/lib/python3.7/site-packages/opentrons/hardware_control/poller.py", line 83, in _poll_once File "usr/lib/python3.7/site-packages/opentrons/hardware_control/modules/tempdeck.py", line 283, in read File "usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.py", line 137, in get_temperature File "usr/lib/python3.7/site-packages/opentrons/drivers/utils.py", line 67, in parse_temperature_response opentrons.drivers.utils.ParseError: ParseError(error_message=Unexpected argument to parse_temperature_response, parse_source=) KeyError Traceback (most recent call last) /usr/lib/python3.7/site-packages/opentrons/drivers/utils.pyc in parse_temperature_response(temperature_string, rounding_val) KeyError: 'T' During handling of the above exception, another exception occurred: ParseError Traceback (most recent call last) <ipython-input-20-d25016fe133b> in <module>() 1 # Note, do not use the %%time magic with the temp module. It causes an error ----> 2 temp_module.set_temperature(50) /usr/lib/python3.7/site-packages/opentrons/commands/publisher.pyc in _decorated(*args, **kwargs) /usr/lib/python3.7/site-packages/opentrons/protocols/api_support/util.pyc in _check_version_wrapper(*args, **kwargs) /usr/lib/python3.7/site-packages/opentrons/protocol_api/module_contexts.pyc in set_temperature(self, celsius) /usr/lib/python3.7/site-packages/opentrons/protocol_api/core/protocol_api/legacy_module_core.pyc in wait_for_target_temperature(self, celsius) /usr/lib/python3.7/site-packages/opentrons/hardware_control/adapters.pyc in call_coroutine_sync(loop, to_call, *args, **kwargs) /usr/lib/python3.7/concurrent/futures/_base.pyc in result(self, timeout) /usr/lib/python3.7/concurrent/futures/_base.pyc in __get_result(self) /usr/lib/python3.7/site-packages/opentrons/hardware_control/modules/tempdeck.pyc in await_temperature(self, awaiting_temperature) /usr/lib/python3.7/site-packages/opentrons/hardware_control/modules/tempdeck.pyc in _await_temperature() /usr/lib/python3.7/site-packages/opentrons/hardware_control/poller.pyc in wait_next_poll(self) /usr/lib/python3.7/site-packages/opentrons/hardware_control/poller.pyc in _poll_once(self) /usr/lib/python3.7/site-packages/opentrons/hardware_control/modules/tempdeck.pyc in read(self) /usr/lib/python3.7/site-packages/opentrons/drivers/temp_deck/driver.pyc in get_temperature(self) /usr/lib/python3.7/site-packages/opentrons/drivers/utils.pyc in parse_temperature_response(temperature_string, rounding_val) ParseError: ParseError(error_message=Unexpected argument to parse_temperature_response, parse_source=)

Steps to reproduce

Run the attached jupyter notebook.
AdhE assay setup 2-13-2023.zip

Current behavior

The protocol still works despite the error messages.

Expected behavior

Fix whatever is causing the error messages.

Operating system

Windows

System and robot setup or anything else?

This problem only showed up when I upgraded from version 5.0.2 to 6.2.1

[xiaoxuan1216]

Probably u should stop the opentrons-robot-server at first.
Go to the home page of the Jupyter notebook and start a new terminal.

systemctl stop opentrons-robot-server
Then try to restart your procotol. Hopefully it will be useful.