qv4l2 command not found

In this troubleshooting guide we learn how to fix qv4l2 command not found error message

Introduction

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

qv4l2: command not found

or when using sudo you get the following error message

sudo: qv4l2: command not found

In Ubuntu qv4l2 is provided by qv4l2 package.

qv4l2 is:

Qt v4l2 control panel application. You can change all through the v4l2 interface exposed device controls.

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

sudo apt-get -y install qv4l2

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

You can also use apt command to install qv4l2.

sudo apt -y install qv4l2

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

sudo aptitude install qv4l2

In this tutorial we learn how to fix qv4l2 command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.