i686-linux-gnu-g++-9 command not found

In this troubleshooting guide we learn how to fix i686-linux-gnu-g++-9 command not found error message

Introduction

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

i686-linux-gnu-g++-9: command not found

or when using sudo you get the following error message

sudo: i686-linux-gnu-g++-9: command not found

In Ubuntu i686-linux-gnu-g++-9 is provided by g++-9-i686-linux-gnu package.

g++-9-i686-linux-gnu is:

This is the GNU C++ compiler, a fairly portable optimizing compiler for C++.

This package contains C++ cross-compiler for i386 architecture.

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

sudo apt-get -y install g++-9-i686-linux-gnu

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

You can also use apt command to install g++-9-i686-linux-gnu.

sudo apt -y install g++-9-i686-linux-gnu

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

sudo aptitude install g++-9-i686-linux-gnu

In this tutorial we learn how to fix i686-linux-gnu-g++-9 command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.