打包mysql workbench

sudo apt-get install python3-rosdep
rosdep where-defined ANTLR4
sudo rosdep init
rosdep update
sudo apt install g++ libx11-dev swig antlr4 libantlr4-runtime-dev gtk+-3.0 gtkmm-3.0 libpython3.7-dev libpython2.7-dev libgdal-dev libssh-dev

https://blog.csdn.net/czsnooker/article/details/120058151

sudo rosdep init

这个可能报错：
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.
原因：网站被墙了，挂vpn可以访问
解决方法：
1、换手机热点，成功几率不大
2、sudo gedit /etc/hosts
底部添加：
151.101.84.133 raw.githubusercontent.com
185.199.111.133 raw.github.com
可能有效
3、直接写入文件
我挂vpn访问上面这个网站，得到

# os-specific listings first
yaml https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/osx-homebrew.yaml osx

# generic
yaml https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/base.yaml
yaml https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/python.yaml
yaml https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/ruby.yaml
gbpdistro https://raw.githubusercontent.com/ros/rosdistro/master/releases/fuerte.yaml fuerte

# newer distributions (Groovy, Hydro, ...) must not be listed anymore, they are being fetched from the rosdistro index.yaml instead

sudo mkdir -p /etc/ros/rosdep/sources.list.d
cd /etc/ros/rosdep/sources.list.d
sudo gedit 20-default.list

把上面的内容粘贴到该文件中，保存、退出

rosdep update

ERROR: error loading sources list:
<urlopen error (https://raw.githubusercontent.com/ros/rosdistro/master/index-v4.yaml)>
可能会出现连接超时这种错误，多运行几次，还可以换阿里云源试试，注意网络环境一定要好。

终极方法-----修改下载源文件。
网站https://ghproxy.com/支持github的资源代理，非常好用，我们将用此代理加速rosdep对Github Raw的访问，进而解决rosdep update超时问题