安装mavlink报错:aurllib2.URLError: <urlopen error <urlopen error [Errno 111] Connection refused>
在执行源码安装MAVROS的安装mavlink步骤时,报错:$rosinstall_generator--rosdistromelodicmavlink|tee/tmp/mavros.rosinstallTraceback(mostrecentcalllast):File"/usr/bin/rosinstall_generator",line11,inload_entry_point('rosin