Ubuntu18.04 ROS安装小记

一开始遇到

sudo apt-get install ros--desktop-full (E: Unable to correct problems, you have held broken packages.)

多方搜索之后，先使用apt-get安装aptitude

sudo apt-get install aptitude

然后使用aptitude安装对应的ros

sudo aptitude install ros-desktop-full

接着是配置下zshrc

echo "source /opt/ros/melodic/setup.zsh" >> ~/.zshrc
source ~/.zshrc

如果你用的是bashrc，则是

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

接着是配置依赖

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

进行初始化

sudo rosdep init
rosdep update

初始化的时候遇到错误

ERROR: cannot download default sources list from:
https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/sources.list.d/20-default.list
Website may be down.

下载并配置proxychains来解决

sudo apt-get install proxychains

然后编辑配置文件，在文件末尾处，将内容改为自己的代理地址以及端口

sudo vi /etc/proxychains.conf

之后执行

sudo proxychains rosdep init
proxychains rosdep update

注意后面update的时候不要加sudo，不然会有权限问题