[Bug] Adding "Instances" to TrueNAS breaks the integration with 'unsupported operand type' error #264
Description
Describe the issue
After adding "Instances" (custom docker or VM) into TrueNAS Scale, the integration fails with this error:
TypeError: unsupported operand type(s) for /: 'NoneType' and 'int'
How to reproduce the issue
Steps to reproduce the behavior:
- Add HA integration. Confirm all works fine
- Add any custom "Instance" to TrueNAS Scale
- Wait for HA integration to fail to fetch new data (just "unavailable")
- Try restarting integration - get the error from the descripion
Expected behavior
Should work, even if it'll ignore integration data
Software versions
All fields in this sections are required.
- Home Assistant version: 2025.7.0
- TrueNAS integration version: v1.4b4 (but I used a stable version as well)
- TrueNAS version: Scale 25.04
Traceback/Error logs
Unexpected error fetching TrueNAS data
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 382, in _async_refresh
self.data = await self._async_update_data()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/config/custom_components/truenas/coordinator.py", line 104, in _async_update_data
await self.hass.async_add_executor_job(self.get_vm)
File "/usr/local/lib/python3.13/concurrent/futures/thread.py", line 59, in run
result = self.fn(*self.args, **self.kwargs)
File "/config/custom_components/truenas/coordinator.py", line 856, in get_vm
self.ds["vm"][uid]["memory"] = round(vals["memory"] / 1024 / 1024 / 1024)
~~~~~~~~~~~~~~~^~~~~~
TypeError: unsupported operand type(s) for /: 'NoneType' and 'int'