[dev] Frontend github codespace - cannot start core in devcontainer #30197
Description
Checklist
- I have updated to the latest available Home Assistant version.
- I have cleared the cache of my browser.
- I have tried a different browser to see if it is related to my browser.
- I have tried reproducing the issue in safe mode to rule out problems with unsupported custom resources.
Describe the issue you are experiencing
Hope I can post it here.
VSCode, github codespace (just created it) - cannot successfully use "Run HA Core in devocontainer".
The last error in the task output:
2026-03-18 07:26:15.679 ERROR (MainThread) [root] Uncaught exception
Traceback (most recent call last):
File "/home/vscode/.local/bin/hass", line 7, in <module>
sys.exit(main())
~~~~^^
File "/home/vscode/src/homeassistant/homeassistant/__main__.py", line 215, in main
exit_code = runner.run(runtime_conf)
File "/home/vscode/src/homeassistant/homeassistant/runner.py", line 289, in run
return loop.run_until_complete(setup_and_run_hass(runtime_config))
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/asyncio/base_events.py", line 719, in run_until_complete
return future.result()
~~~~~~~~~~~~~^^
File "/home/vscode/src/homeassistant/homeassistant/runner.py", line 256, in setup_and_run_hass
hass = await bootstrap.async_setup_hass(runtime_config)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/vscode/src/homeassistant/homeassistant/bootstrap.py", line 355, in async_setup_hass
await async_from_config_dict(config_dict, hass) is not None
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/vscode/src/homeassistant/homeassistant/bootstrap.py", line 517, in async_from_config_dict
if not await async_load_base_functionality(hass):
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/vscode/src/homeassistant/homeassistant/bootstrap.py", line 466, in async_load_base_functionality
await asyncio.gather(
...<15 lines>...
)
File "/home/vscode/src/homeassistant/homeassistant/helpers/system_info.py", line 64, in async_get_system_info
hassio = await async_import_module(hass, "homeassistant.components.hassio")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/vscode/src/homeassistant/homeassistant/helpers/importlib.py", line 49, in async_import_module
module = await hass.async_add_import_executor_job(_get_module, cache, name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/concurrent/futures/thread.py", line 86, in run
result = ctx.run(self.task)
File "/usr/local/lib/python3.14/concurrent/futures/thread.py", line 73, in run
return fn(*args, **kwargs)
File "/home/vscode/src/homeassistant/homeassistant/helpers/importlib.py", line 25, in _get_module
cache[name] = importlib.import_module(name)
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "/home/vscode/src/homeassistant/homeassistant/util/loop.py", line 201, in protected_loop_func
return func(*args, **kwargs)
File "/usr/local/lib/python3.14/importlib/__init__.py", line 88, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<frozen importlib._bootstrap>", line 1398, in _gcd_import
File "<frozen importlib._bootstrap>", line 1371, in _find_and_load
File "<frozen importlib._bootstrap>", line 1342, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 938, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 759, in exec_module
File "<frozen importlib._bootstrap>", line 491, in _call_with_frames_removed
File "/home/vscode/src/homeassistant/homeassistant/components/hassio/__init__.py", line 14, in <module>
from aiohasupervisor import SupervisorError
ModuleNotFoundError: No module named 'aiohasupervisor'
and then lines:
* The terminal process "/bin/bash '-c', 'script/core'" terminated with exit code: 1.
* Terminal will be reused by tasks, press any key to close it.
Describe the behavior you expected
no error
Steps to reproduce the issue
as above
What version of Home Assistant Core has the issue?
2026.4 dev
What was the last working version of Home Assistant Core?
No response
In which browser are you experiencing the issue?
No response
Which operating system are you using to run this browser?
No response
State of relevant entities
Problem-relevant frontend configuration
JavaScript errors shown in your browser console/inspector
Additional information
No response