https://blog.csdn.net/qq_32705211/article/details/106183278
https://blog.csdn.net/qq_41746268/article/details/84726596
補充:本人裝的是Melodic,sudo apt install python-rosdep該命令默認python是python2的所以需要查看當前的python版本是不是2的,不然在sudo rosdep init處會有問題。安裝ros不要有anaconda軟件,不然也有問題。