Trouble installing ROS Noetic Ninjemys on Ubuntu 20.04
Getting following error, please help:--
Err:1 http://packages.ros.org/ros/ubuntu focal/main amd64 libgazebo11 amd64 11.0.0-2~focal
Connection failed [IP: 140.211.166.134 80]
E: Failed to fetch http://packages.ros.org/ros/ubuntu/pool/main/g/gazebo11/libgazebo11_11.0.0-2~focal_amd64.deb Connection failed [IP: 140.211.166.134 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?