fslex command not found

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

Introduction

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

fslex: command not found

or when using sudo you get the following error message

sudo: fslex: command not found

In Ubuntu fslex is provided by fsharp package.

fsharp is:

F# is a multi-paradigm programming language, supporting functional, imperative, and object-oriented structures.

This package contains an F# compiler targeting the CLI runtime.

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

sudo apt-get -y install fsharp

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

You can also use apt command to install fsharp.

sudo apt -y install fsharp

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

sudo aptitude install fsharp

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