rosinit failed in Matlab 2022a, MacOS Apple Silicon

pyenv get

ans = 

PythonEnvironment - 属性:

Version: "3.9"
Executable: "/opt/homebrew/Caskroom/miniforge/base/envs/matlab_ros/bin/python"
Library: "/opt/homebrew/Caskroom/miniforge/base/envs/matlab_ros/lib/libpython3.9.dylib"
Home: "/opt/homebrew/Caskroom/miniforge/base/envs/matlab_ros"
Status: NotLoaded
ExecutionMode: InProcess

and rosinit get

Launching ROS Core...
    Adding required Python packages to virtual environment..Done.
Could not install the required Python packages. System error message: Looking in links:
/Applications/MATLAB_R2022a.app/sys/ros1/share/python
Processing /Applications/MATLAB_R2022a.app/sys/ros1/share/python/catkin_pkg-0.4.23-py3-none-any.whl
Processing /Applications/MATLAB_R2022a.app/sys/ros1/share/python/empy-3.3.4.tar.gz
Processing
/Applications/MATLAB_R2022a.app/sys/ros1/share/python/docutils-0.17.1-py2.py3-none-any.whl
Processing
/Applications/MATLAB_R2022a.app/sys/ros1/share/python/pyparsing-2.4.7-py2.py3-none-any.whl
Processing
/Applications/MATLAB_R2022a.app/sys/ros1/share/python/python_dateutil-2.8.1-py2.py3-none-any.whl
[31mERROR: Could not find a version that satisfies the requirement pyyaml (from versions: none)[0m
[31mERROR: No matching distribution found for pyyaml[0m
. Use pyenv function to set the path to the Python executable and retry the command.

/opt/homebrew/Caskroom/miniforge/base/envs/matlab_ros/bin/python -m pip install pyyaml and /opt/homebrew/Caskroom/miniforge/base/envs/matlab_ros/bin/python -m pip install pyyaml==5.4.1 make no sense.

[Cam Salzberger]

Is "/opt/homebrew/Caskroom/miniforge/base/envs/matlab_ros/bin/python" where you expect your Python 3.9 installation to be? Or is it an odd location and you'd expect it to be somewhere else?

-Cam

[Sheng Yang]

This is the venv created by conda before.

[Cam Salzberger]

I wonder if that might be the issue. The MATLAB tools are trying to create a venv to install a few modules necessary for building the ROS packages (catkin tools and their dependencies). I have never tried before, but maybe it's an issue creating a venv from a venv. Can you try setting pyenv to the standard Python executable?

-Cam

[Sheng Yang]

In system terminal:

➜  ~ python3 -V
Python 3.9.10
➜  ~ which python3
/opt/homebrew/bin/python3

then in matlab:

>> pyenv('Version', '/opt/homebrew/bin/python3');
>> rosinit
Launching ROS Core...
    Adding required Python packages to virtual environment..Done.
Could not install the required Python packages. System error message: Looking in links:
/Applications/MATLAB_R2022a.app/sys/ros1/share/python
Processing /Applications/MATLAB_R2022a.app/sys/ros1/share/python/catkin_pkg-0.4.23-py3-none-any.whl
Processing /Applications/MATLAB_R2022a.app/sys/ros1/share/python/empy-3.3.4.tar.gz
Processing /Applications/MATLAB_R2022a.app/sys/ros1/share/python/docutils-0.17.1-py2.py3-none-any.whl
Processing /Applications/MATLAB_R2022a.app/sys/ros1/share/python/pyparsing-2.4.7-py2.py3-none-any.whl
Processing
/Applications/MATLAB_R2022a.app/sys/ros1/share/python/python_dateutil-2.8.1-py2.py3-none-any.whl
[31mERROR: Could not find a version that satisfies the requirement pyyaml (from versions: none)[0m
[31mERROR: No matching distribution found for pyyaml[0m
. Use pyenv function to set the path to the Python executable and retry the command.

I am very glad to get your quick reply but the solution does not work.

[Cam Salzberger]

Hmm, I've not seen this exact issue before. One thing that has helped other similar issues is to upgrade pip and setuptools in the base Python installation. So in a terminal outside of MATLAB run:

python3 -m pip install --upgrade pip
python3 -m pip install --upgrade setuptools

After doing that, you can force recreation of the virtual environment in MATLAB by running this from the Command Window. Make sure pyenv is set the same way first (to the base executable).

ros.internal.createOrGetLocalPython(true)

-Cam

[Sheng Yang]

Thank you for the patient response. Unfortunately, nothing changed.

In system terminal:

➜  ~ python3 -m pip install --upgrade pip
DEPRECATION: Configuring installation scheme with distutils config files is deprecated and will no longer work in the near future. If you are using a Homebrew or Linuxbrew Python, please see discussion at https://github.com/Homebrew/homebrew-core/issues/76621
Requirement already satisfied: pip in /opt/homebrew/lib/python3.9/site-packages (22.0.4)
DEPRECATION: Configuring installation scheme with distutils config files is deprecated and will no longer work in the near future. If you are using a Homebrew or Linuxbrew Python, please see discussion at https://github.com/Homebrew/homebrew-core/issues/76621
➜  ~ python3 -m pip install --upgrade setuptools
DEPRECATION: Configuring installation scheme with distutils config files is deprecated and will no longer work in the near future. If you are using a Homebrew or Linuxbrew Python, please see discussion at https://github.com/Homebrew/homebrew-core/issues/76621
Requirement already satisfied: setuptools in /opt/homebrew/lib/python3.9/site-packages (61.0.0)
DEPRECATION: Configuring installation scheme with distutils config files is deprecated and will no longer work in the near future. If you are using a Homebrew or Linuxbrew Python, please see discussion at https://github.com/Homebrew/homebrew-core/issues/76621

In matlab:

>> pyenv

ans = 

PythonEnvironment - 属性:

Version: "3.9"
Executable: "/opt/homebrew/opt/python@3.9/bin/python3.9"
Library: "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/libpython3.9.dylib"
Home: "/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9"
Status: NotLoaded
ExecutionMode: InProcess

>> ros.internal.createOrGetLocalPython(true)
Removing previous version of Python virtual environment..Done.
Creating a Python virtual environment...Done.
    Adding required Python packages to virtual environment...Done.
    错误使用 ros.internal.createOrGetLocalPython
Could not install the required Python packages. System error message: Looking in links:
/Applications/MATLAB_R2022a.app/sys/ros1/share/python
Processing /Applications/MATLAB_R2022a.app/sys/ros1/share/python/catkin_pkg-0.4.23-py3-none-any.whl
Processing /Applications/MATLAB_R2022a.app/sys/ros1/share/python/empy-3.3.4.tar.gz
Processing /Applications/MATLAB_R2022a.app/sys/ros1/share/python/docutils-0.17.1-py2.py3-none-any.whl
Processing /Applications/MATLAB_R2022a.app/sys/ros1/share/python/pyparsing-2.4.7-py2.py3-none-any.whl
Processing
/Applications/MATLAB_R2022a.app/sys/ros1/share/python/python_dateutil-2.8.1-py2.py3-none-any.whl
[31mERROR: Could not find a version that satisfies the requirement pyyaml (from versions: none)[0m
[31mERROR: No matching distribution found for pyyaml[0m
. Use pyenv function to set the path to the Python executable and retry the command.

So strange!

Answer 1

[Sheng Yang]

I did some surveys on createOrGetLocalPython.m and wheels in /Applications/MATLAB_R2022a.app/sys/ros1/share/python and found this problem is associated with apple silicon. In /Applications/MATLAB_R2022a.app/sys/ros1/share/python, there are three PyYAML wheels:

PyYAML-5.4.1-cp39-cp39-macosx_10_9_x86_64.whl
PyYAML-5.4.1-cp39-cp39-manylinux1_x86_64.whl
PyYAML-5.4.1-cp39-cp39-win_amd64.whl

None of them is suitable for macos (apple silicon). (`~/.matlab/R2022a/ros1/maci64/venv/bin/python` is the venv created by ros.internal.createOrGetLocalPython)

➜  python ~/.matlab/R2022a/ros1/maci64/venv/bin/python -m pip install PyYAML-5.4.1-cp39-cp39-macosx_10_9_x86_64.whl
ERROR: PyYAML-5.4.1-cp39-cp39-macosx_10_9_x86_64.whl is not a supported wheel on this platform.

However, you can install PyYAML==5.4.1 by pip directly. The current solution for this problem (only in apple silicon) should be:

Step 1, execute these commands in matlab (you will get error infomation, ignore them)

pyenv('Version', '/opt/homebrew/bin/python3')
ros.internal.createOrGetLocalPython(true)

Step 2, execute the command in system terminal

~/.matlab/R2022a/ros1/maci64/venv/bin/python -m pip install pyyaml==5.4.1

Step 3, execute these commands in matlab

ros.internal.createOrGetLocalPython()
rosinit

@Cam Salzberger Thank you for your patient replies. Maybe an update is necessary for Matlab 2022a?

[Cam Salzberger]

Thank you for sharing your solution, Sheng. I'll pass that on to the developer working on native support for that platform.

Were you running MATLAB through the Rosetta 2 translation environment, or natively?

-Cam

[Sheng Yang]

Through the Rosetta 2 translation. As I know, matlab does not support native apple silicon yet.

[Karthik Reddy Vennapureddy]

Hi Yang,

Could you let us know whether the python in '/opt/homebrew/opt/python@3.9/bin/python3.9' is arm64 or x86_64 version. To know which architecture of python you are using, execute the following command:

!file /opt/homebrew/opt/python@3.9/bin/python3.9

The error seems to be occurring with the native python (arm64). You could install a intel or universal python as alternative from the official python 3.9.10 release for macos: https://www.python.org/downloads/macos/.

- Karthik Reddy

[Sheng Yang]

Indeed, it is the native python installed by the homebrew:

/opt/homebrew/opt/python@3.9/bin/python3.9: Mach-O 64-bit executable arm64

Answer 2

[Kenneth Hoffmann]

Hi! Is MATLAB ROS stable on Mac Silicon? I am considering upgrading. Thanks!

[Sk Shaon]

No, Still has the same Issue

Unable to install the required Python packages. System error message:

Looking in links: c:\Program Files\MATLAB\R2022b\sys\ros1\share\python

Processing c:\program files\matlab\r2022b\sys\ros1\share\python\catkin_pkg-0.4.23-py3-none-any.whl

Processing c:\program files\matlab\r2022b\sys\ros1\share\python\empy-3.3.4.tar.gz

Processing c:\program files\matlab\r2022b\sys\ros1\share\python\docutils-0.17.1-py2.py3-none-any.whl

Processing c:\program files\matlab\r2022b\sys\ros1\share\python\pyparsing-2.4.7-py2.py3-none-any.whl

Processing c:\program files\matlab\r2022b\sys\ros1\share\python\python_dateutil-2.8.1-py2.py3-none-any.whl

ERROR: Could not find a version that satisfies the requirement pyyaml (from versions: none)

ERROR: No matching distribution found for pyyaml

.

Use ROS Toolbox preferences to create a Python virtual environment.