pyinstaller created .exe can't find module ortools.constraint_solver.routing_parameters_pb2

[QuentinBennett]

What version of OR-Tools and what language are you using?
Version: 9.4.1874
Language: Python 3.10

Which solver are you using (e.g. CP-SAT, Routing Solver, GLOP, BOP, Gurobi)
Routing

What operating system (Linux, Windows, ...) and version?
Windows Server 2016 Datacenter

What did you do?
Steps to reproduce the behavior:
Script works fine under python.
Package created using
pyinstaller --hidden-import ortools.constraint_solver.routing_parameters_pb2 --hidden-import pkg_resources.py2_warn --onefile .\vrptime.py

(Hidden imports suggested in #802 )

What did you expect to see
Program to run as per script

What did you see instead?
Traceback (most recent call last):
File "vrptime.py", line 211, in
main(driverId)
File "vrptime.py", line 193, in main
search_parameters = pywrapcp.DefaultRoutingSearchParameters()
File "ortools\constraint_solver\pywrapcp.py", line 4680, in DefaultRoutingSearchParameters
ModuleNotFoundError: No module named 'ortools.constraint_solver.routing_parameters_pb2'
[6736] Failed to execute script 'vrptime' due to unhandled exception!

Make sure you include information that can help us debug (full error message, model Proto).

Anything else we should know about your project / environment
VC_redist.x64.exe installed

[Mizux]

-p DIR, --paths DIR
A path to search for imports (like using PYTHONPATH). Multiple paths are allowed, separated by ':', or use this option multiple times. Equivalent to supplying the pathex argument in the spec file.

--hidden-import MODULENAME, --hiddenimport MODULENAME
Name an import not visible in the code of the script(s). This option can be used multiple times.

--collect-submodules MODULENAME
Collect all submodules from the specified package or module. This option can be used multiple times.

--collect-data MODULENAME, --collect-datas MODULENAME
Collect all data from the specified package or module. This option can be used multiple times.

--collect-binaries MODULENAME
Collect all binaries from the specified package or module. This option can be used multiple times.

--collect-all MODULENAME
Collect all submodules, data files, and binaries from the specified package or module. This option can be used multiple times.

src: https://pyinstaller.org/en/stable/usage.html?highlight=hidden#cmdoption-hidden-import

[QuentinBennett]

Thanks for the answer, however, it doesn't help much as I wouldn't know which options or values to use.

Given that python and all modules have been installed using the default settings, shouldn't everything be in the expected place?

[lperron]

pyinstaller is not very bright :-(