環境

Ubuntu: 20.04
ROS 版本: noetic
（按照官網安裝）

Installation

打開終端（快捷鍵 ctrl+alt+t）

Setup your sources.list

sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu $(lsb_release -sc) main" > /etc/apt/sources.list.d/ros-latest.list'

Set up your keys

sudo apt install curl

curl -s https://raw.githubusercontent.com/ros/rosdistro/master/ros.asc | sudo apt-key add -

Installation

sudo apt update

Desktop-Full Install: (Recommended) : Everything in Desktop plus 2D/3D simulators and 2D/3D perception packages

sudo apt install ros-noetic-desktop-full

Environment setup

source /opt/ros/noetic/setup.bash
echo "source /opt/ros/noetic/setup.bash" >> ~/.bashrc
source ~/.bashrc

Dependencies for building packages

sudo apt install python3-rosdep python3-rosinstall python3-rosinstall-generator python3-wstool build-essential

sudo rosdep init
rosdep update

報錯：
若之前有安裝過可能會出現以下錯誤

ERROR: default sources list file already exists:
    /etc/ros/rosdep/sources.list.d/20-default.list
Please delete if you wish to re-initialize

解決：sudo rm /etc/ros/rosdep/sources.list.d/20-default.list