Linux Optional Dependencies

Java

To build the JAVA API you will need to install either openjdk-8-jdk or sun-java8-jdk:

sudo apt install openjdk-8-jdk

NodeJS

NodeJS npm is needed to build webots.min.js:

sudo apt-get install npm

Python 3.6 on Ubuntu 16.04

To install Python 3.6 and 3.7 on Ubuntu 16.04, you will need to add a new PPA:

sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update
sudo apt install python3.6-dev python3.7-dev

Webots web service

This is needed only to run Webots as a web service (simulation_server.py in the cloud).

Install the following modules for Python 2.7:

sudo pip install --upgrade pip
sudo pip install websocket-client tornado nvidia-ml-py psutil requests
sudo apt install firejail

Or for Python 3:

sudo apt install python3-pip
sudo -H pip3 install --upgrade pip
sudo -H pip3 install websocket-client tornado nvidia-ml-py3 psutil requests
sudo apt install firejail

Automobile tools

This is needed only if you want to use the automobile tools (including the OpenStreetMap importer)

Follow the instructions here: https://www.cyberbotics.com/doc/automobile/openstreetmap-importer