Using rosgenmsg() for ROS custom message in MATLAB 2021 generation

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Zi Huang 2021-5-15

移动：Jagadeesh Konakalla 2024-4-12

Hi,

I am trying to generate custom ROS messages using rosgenmsg() following the link below.

However, Matlab keeps telling me

"Could not install the required python packages. "

"ros.internal.createOrgetLocalPython(); % ensure python is available"

IN addiiton, my default python version is 3.8 and I have changed it to 2.7 by using

pyenv('Version','/usr/bin/python2.7'), where /usr/bin/python2.7 is the full path of my python executable.

Zi Huang 2021-5-22

I actually intalled pip for python2.7 by using

sudo apt install python-pip

It seems, pip is set default for python3 now.

python -m pip --version

gives me pip 21.1.1 while

python2.7 -m pip --version

gives me error message

were you able to solve your problem?

Murat Belge 2021-5-18

移动：Jagadeesh Konakalla 2024-4-12

Can you execute the following command on bash and tell us the output?

$ /usr/bin/python2.7 --version

$/usr/bin/python2.7 -m pip --version

It looks like the version of the pip installed is not supported by Python 2.7, hence the syntax error from the pip.

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