Problem establishing modbus connection with trb140

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in the last step of this video shows entering few commands in CLI . I am getting few errors in it’s execution

error states:(IN CLI)

Collecting uamqp~=1.6.6
Downloading uamqp-1.6.11.tar.gz (4.6 MB)
---------------------------------------- 4.6/4.6 MB 782.3 kB/s eta 0:00:00
Installing build dependencies: started
Installing build dependencies: finished with status ‘done’
Getting requirements to build wheel: started
Getting requirements to build wheel: finished with status ‘done’
ERROR: Exception:
Traceback (most recent call last):
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\cli\base_command.py”, line 105, in _run_wrapper
status = _inner_run()
^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\cli\base_command.py”, line 96, in _inner_run
return self.run(options, args)
^^^^^^^^^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\cli\req_command.py”, line 68, in wrapper
return func(self, options, args)
^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\commands\install.py”, line 387, in run
requirement_set = resolver.resolve(
^^^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\resolution\resolvelib\resolver.py”, line 96, in resolve
result = self._result = resolver.resolve(
^^^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_vendor\resolvelib\resolvers\resolution.py”, line 515, in resolve
state = resolution.resolve(requirements, max_rounds=max_rounds)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_vendor\resolvelib\resolvers\resolution.py”, line 388, in resolve
self._add_to_criteria(self.state.criteria, r, parent=None)
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_vendor\resolvelib\resolvers\resolution.py”, line 141, in _add_to_criteria
if not criterion.candidates:
^^^^^^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_vendor\resolvelib\structs.py”, line 194, in bool
return bool(self._sequence)
^^^^^^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\resolution\resolvelib\found_candidates.py”, line 163, in bool
self._bool = any(self)
^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\resolution\resolvelib\found_candidates.py”, line 147, in
return (c for c in iterator if id(c) not in self._incompatible_ids)
^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\resolution\resolvelib\found_candidates.py”, line 37, in _iter_built
candidate = func()
^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\resolution\resolvelib\factory.py”, line 187, in _make_candidate_from_link
base: Optional[BaseCandidate] = self._make_base_candidate_from_link(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\resolution\resolvelib\factory.py”, line 233, in _make_base_candidate_from_link
self._link_candidate_cache[link] = LinkCandidate(
^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\resolution\resolvelib\candidates.py”, line 306, in init
super().init(
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\resolution\resolvelib\candidates.py”, line 159, in init
self.dist = self._prepare()
^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\resolution\resolvelib\candidates.py”, line 236, in _prepare
dist = self._prepare_distribution()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\resolution\resolvelib\candidates.py”, line 317, in _prepare_distribution
return preparer.prepare_linked_requirement(self._ireq, parallel_builds=True)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\operations\prepare.py”, line 532, in prepare_linked_requirement
return self._prepare_linked_requirement(req, parallel_builds)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\operations\prepare.py”, line 647, in _prepare_linked_requirement
dist = _get_prepared_distribution(
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\operations\prepare.py”, line 71, in _get_prepared_distribution
abstract_dist.prepare_distribution_metadata(
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\distributions\sdist.py”, line 56, in prepare_distribution_metadata
self._install_build_reqs(finder)
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\distributions\sdist.py”, line 126, in _install_build_reqs
build_reqs = self._get_build_requires_wheel()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\distributions\sdist.py”, line 103, in _get_build_requires_wheel
return backend.get_requires_for_build_wheel()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_internal\utils\misc.py”, line 702, in get_requires_for_build_wheel
return super().get_requires_for_build_wheel(config_settings=cs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_vendor\pyproject_hooks_impl.py”, line 196, in get_requires_for_build_wheel
return self._call_hook(
^^^^^^^^^^^^^^^^
File “C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\Lib\site-packages\pip_vendor\pyproject_hooks_impl.py”, line 402, in _call_hook
raise BackendUnavailable(
pip._vendor.pyproject_hooks._impl.BackendUnavailable: Cannot import ‘setuptools.build_meta’

(azenv) C:\Users\ADMIN>

3

Hello,

In this case, as we are not familiar with running these commands in an embedded Python environment, maybe any other users could help or bring any useful insights here.

What I managed to understand with my amateur knowledge and research, the issue might lie in this line: BackendUnavailable: Cannot import ‘setuptools.build_meta’, pip tried to build uamqp from source (likely because no prebuilt wheel was available for your environment), but it needs setuptools.build_meta to do that — and it’s missing in your Azure CLI’s embedded Python environment.

Could you please check if setuptools is installed and up to date in your current Python environment? If not, you can try running the following commands:

pip install --upgrade setuptools wheel
pip install uamqp~=1.6.6

If the issue persists, it might be due to missing Python build tools required for building the uamqp package. In that case, try:

pip install --upgrade pip setuptools wheel
python -m pip install --force-reinstall --no-cache-dir uamqp~=1.6.6

Best regards,