yum4 command not found

In this troubleshooting guide we learn how to fix yum4 command not found error message

Introduction

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

yum4: command not found

or when using sudo you get the following error message

sudo: yum4: command not found

In Ubuntu yum4 is provided by nextgen-yum4 package.

nextgen-yum4 is:

Package manager forked from Yum, using libsolv as a dependency resolver.

This package installs a Yum CLI compatibility layer redirecting /usr/bin/yum4 to DNF.

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

sudo apt-get -y install nextgen-yum4

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

You can also use apt command to install nextgen-yum4.

sudo apt -y install nextgen-yum4

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

sudo aptitude install nextgen-yum4

In this tutorial we learn how to fix yum4 command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.