rosversion command not found

In this troubleshooting guide we learn how to fix rosversion command not found error message

Introduction

When you run more command in linux terminal / console, you get the following error message

rosversion: command not found

or when using sudo you get the following error message

sudo: rosversion: command not found

Solutions to rosversion: command not found

How To Fix rosversion: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu rosversion is provided by python3-rospkg package.

python3-rospkg is:

This package is part of Robot OS (ROS). It is a library for retrieving information about ROS packages and stacks. The rospkg Python module provides basic utilities for querying information about ROS packages, stacks, and distributions. There are several basic APIs: ROS environment, RosPack/RosStack, OS detection, and distributions.

This package installs the library for Python 3.

To fix this problem, we can install more using the command below.

sudo apt-get -y install python3-rospkg

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install python3-rospkg.

sudo apt -y install python3-rospkg

Or if you have aptitude installed you can use the following command.

sudo aptitude install python3-rospkg

Summary

In this tutorial we learn how to fix rosversion command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.