[BUG] <can't compile MK4 firmware>

[kgolger]

Please, before you create a new bug report, please make sure you searched in open and closed issues and couldn't find anything that matches.

Printer type - [MK4]

Printer firmware version - [5.1.0]

Original or Custom firmware - [Original]

Describe the bug
can't compile MK4 firmware 5.1.0

tryed to compile as user pi:

git clone https://github.com/prusa3d/Prusa-Firmware-Buddy.git - ok
mv Prusa-Firmware-Buddy TEMP/ - ok
cd TEMP/Prusa-Firmware-Buddy - ok
python utils/build.py --generate-bbf - error!

Switching to Buddy's virtual environment.
You can disable this by setting the BUDDY_NO_VIRTUALENV=1 env. variable.
Traceback (most recent call last):
File "/home/pi/TEMP/Prusa-Firmware-Buddy/utils/build.py", line 832, in
main()
File "/home/pi/TEMP/Prusa-Firmware-Buddy/utils/build.py", line 623, in main
bootstrap.switch_to_venv_if_nedded()
File "/home/pi/TEMP/Prusa-Firmware-Buddy/utils/bootstrap.py", line 211, in switch_to_venv_if_nedded
os.execv(str(venv_bin_dir / 'python'),
FileNotFoundError: [Errno 2] No such file or directory

wbr,
Karl

[seppelicous]

I can confirm this issue.
I get the same error on macOS and windows 11. both with python 3.12.1

[bkerler]

It's easy to fix. install virtualenv, then do a python -m venv .venv in the git directory and it will work just fine using the build script.

[seppelicous]

I appreciate your quick support!
It works and now it is compiling 😊

[seppelicous]

Update:
Maybe the reason for the following error has the same root. I already installed "diskutils" with PIP, but still get the same error

`C:\Users\USER\Downloads\prusafirmware>python utils/build.py --preset mk4
Switching to Buddy's virtual environment.
You can disable this by setting the BUDDY_NO_VIRTUALENV=1 env. variable.

C:\Users\USER\Downloads\prusafirmware>Collecting ecdsa~=0.18 (from -r C:\Users\USER\Downloads\prusafirmware\requirements.txt (line 2))
Using cached ecdsa-0.18.0-py2.py3-none-any.whl (142 kB)
Collecting polib~=1.2 (from -r C:\Users\USER\Downloads\prusafirmware\requirements.txt (line 3))
Using cached polib-1.2.0-py2.py3-none-any.whl (20 kB)
Collecting pyyaml~=6.0 (from -r C:\Users\USER\Downloads\prusafirmware\requirements.txt (line 4))
Obtaining dependency information for pyyaml~=6.0 from https://files.pythonhosted.org/packages/2b/9f/fbade56564ad486809c27b322d0f7e6a89c01f6b4fe208402e90d4443a99/PyYAML-6.0.1-cp312-cp312-win_amd64.whl.metadata
Using cached PyYAML-6.0.1-cp312-cp312-win_amd64.whl.metadata (2.1 kB)
Collecting littlefs-python==0.8 (from -r C:\Users\USER\Downloads\prusafirmware\requirements.txt (line 5))
Obtaining dependency information for littlefs-python==0.8 from https://files.pythonhosted.org/packages/09/8b/5b2f9b0b29a2bae7aee648259e92e798c259d6e1455ccbc79e92da0842e2/littlefs_python-0.8.0-cp312-cp312-win_amd64.whl.metadata
Using cached littlefs_python-0.8.0-cp312-cp312-win_amd64.whl.metadata (5.8 kB)
Collecting numpy~=1.24.0 (from -r C:\Users\USER\Downloads\prusafirmware\requirements.txt (line 6))
Using cached numpy-1.24.4.tar.gz (10.9 MB)
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:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\cli\base_command.py", line 180, in exc_logging_wrapper
status = run_func(*args)
^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\cli\req_command.py", line 248, in wrapper
return func(self, options, args)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\commands\install.py", line 377, in run
requirement_set = resolver.resolve(
^^^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\resolution\resolvelib\resolver.py", line 92, in resolve
result = self._result = resolver.resolve(
^^^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_vendor\resolvelib\resolvers.py", line 546, in resolve
state = resolution.resolve(requirements, max_rounds=max_rounds)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_vendor\resolvelib\resolvers.py", line 397, in resolve
self._add_to_criteria(self.state.criteria, r, parent=None)
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_vendor\resolvelib\resolvers.py", line 173, in _add_to_criteria
if not criterion.candidates:
^^^^^^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_vendor\resolvelib\structs.py", line 156, in bool
return bool(self._sequence)
^^^^^^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\resolution\resolvelib\found_candidates.py", line 155, in bool
return any(self)
^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\resolution\resolvelib\found_candidates.py", line 143, in
return (c for c in iterator if id(c) not in self._incompatible_ids)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\resolution\resolvelib\found_candidates.py", line 47, in _iter_built
candidate = func()
^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\resolution\resolvelib\factory.py", line 206, in _make_candidate_from_link
self._link_candidate_cache[link] = LinkCandidate(
^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\resolution\resolvelib\candidates.py", line 293, in init
super().init(
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\resolution\resolvelib\candidates.py", line 156, in init
self.dist = self._prepare()
^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\resolution\resolvelib\candidates.py", line 225, in _prepare
dist = self._prepare_distribution()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\resolution\resolvelib\candidates.py", line 304, in _prepare_distribution
return preparer.prepare_linked_requirement(self._ireq, parallel_builds=True)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\operations\prepare.py", line 538, in prepare_linked_requirement
return self._prepare_linked_requirement(req, parallel_builds)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\operations\prepare.py", line 653, in _prepare_linked_requirement
dist = _get_prepared_distribution(
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\operations\prepare.py", line 69, in _get_prepared_distribution
abstract_dist.prepare_distribution_metadata(
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\distributions\sdist.py", line 48, in prepare_distribution_metadata
self._install_build_reqs(finder)
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\distributions\sdist.py", line 118, in _install_build_reqs
build_reqs = self._get_build_requires_wheel()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\distributions\sdist.py", line 95, in _get_build_requires_wheel
return backend.get_requires_for_build_wheel()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_internal\utils\misc.py", line 697, in get_requires_for_build_wheel
return super().get_requires_for_build_wheel(config_settings=cs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_vendor\pyproject_hooks_impl.py", line 166, in get_requires_for_build_wheel
return self._call_hook('get_requires_for_build_wheel', {
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_vendor\pyproject_hooks_impl.py", line 321, in _call_hook
raise BackendUnavailable(data.get('traceback', ''))
pip._vendor.pyproject_hooks._impl.BackendUnavailable: Traceback (most recent call last):
File "C:\Users\USER\Downloads\prusafirmware.venv\Lib\site-packages\pip_vendor\pyproject_hooks_in_process_in_process.py", line 77, in build_backend
obj = import_module(mod_path)
^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\Python312\Lib\importlib_init.py", line 90, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "", line 1381, in _gcd_import
File "", line 1354, in _find_and_load
File "", line 1304, in _find_and_load_unlocked
File "", line 488, in _call_with_frames_removed
File "", line 1381, in _gcd_import
File "", line 1354, in _find_and_load
File "", line 1325, in _find_and_load_unlocked
File "", line 929, in _load_unlocked
File "", line 994, in exec_module
File "", line 488, in call_with_frames_removed
File "C:\Users\USER\AppData\Local\Temp\pip-build-env-0m7etvnk\overlay\Lib\site-packages\setuptools_init.py", line 10, in
import distutils.core
ModuleNotFoundError: No module named 'distutils'`

[bkerler]

I pushed a PR #3582 to fix this bug.

[kgolger]

DISTRIB_DESCRIPTION="Ubuntu 22.04.3 LTS"
Python 3.10.12

Thanks @bkerler
Installed virtualenv and did a python -m venv .venv in the git directory.
Following result after send python utils/build.py --genarate-bbf

Switching to Buddy's virtual environment.
You can disable this by setting the BUDDY_NO_VIRTUALENV=1 env. variable.
Building mini_release_boot
Traceback (most recent call last):
File "/home/pi/TEMP/Prusa-Firmware-Buddy/utils/build.py", line 832, in
main()
File "/home/pi/TEMP/Prusa-Firmware-Buddy/utils/build.py", line 800, in main
result = build(configuration,
File "/home/pi/TEMP/Prusa-Firmware-Buddy/utils/build.py", line 328, in build
config_process = subprocess.run([str(get_dependency('cmake'))] + flags,
File "/usr/lib/python3.10/subprocess.py", line 503, in run
with Popen(*popenargs, **kwargs) as process:
File "/usr/lib/python3.10/subprocess.py", line 971, in init
self._execute_child(args, executable, preexec_fn, close_fds,
File "/usr/lib/python3.10/subprocess.py", line 1863, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
OSError: [Errno 8] Exec format error: '/home/pi/TEMP/Prusa-Firmware-Buddy/.dependencies/cmake-3.22.5/bin/cmake'

wbr,
Karl

[bkerler]

Karl, the exec format error normally only appears if you mix up 64bit vs. 32bit. Also I think you mean "--generate-bbf" ?

Prusa themselves seem use this command line (as an example):
python3 utils/build.py --preset mk4 --build-type release --bootloader yes --generate-bbf --generate-dfu --no-store-output --version-suffix=-BETA+5729.PR3570.B5 --version-suffix-short=-BETA+5729 -DCUSTOM_COMPILE_OPTIONS:STRING=-Werror -DDEVELOPMENT_ITEMS_ENABLED:BOOL=yes

[kgolger]

You are right - of course "--generate-bbf"
I have installed Ubuntu 22.04.03 LTS ARM64 (Pi400).
For this reason, I will probably not be able to use the Prusa build.py. I'll try it on a 32-bit system.
Thanks!
wbr,
Karl

[bkerler]

It could very be that the problem is arm64 and not 32bit/64bit. I assume the cross-compile tools are only meant to be used with x86/x64. But you could try to emulate a x86/x64 system on the arm64. Otherwise, if you are on an arm64 system you should be able to use cmake directly without cross-compilation needed at all.

[kgolger]

Thanks!
As i meant, i'll try it later on a x86 system (also Ubuntu 22.04 LTS).
wbr,
Karl

[kgolger]

compilation now runs on x86 and x64 AMD systems (both tested).
Closing Bugreport - Thanks to all!
wbr,
Karl