unable to locate ros-indigo-turtlebot-simulator
Hello,
I've purchased the ROS book Programming Robots with ROS to help me understand how i can controll the robot i've built. I was having trouble setting up ROS to work on my ubuntu laptop so i downloaded a pre-setup virtual machine from nortrix. I'm also getting the same issue on the virtual machine, the book says i need to setup the simulation stack, when i do get the follow error :
E: Unable to locate package ros-indigo-turtlebot-simulator
How can i move forward on this problem. I've seen there is a github page for it, do i just clone it ? https://github.com/turtlebot/turtlebo...
Also when i run "sudo apt-get update" i get :
Err http://security.ubuntu.com trusty-security InRelease
Err http://extras.ubuntu.com trusty InRelease
Err http://archive.canonical.com trusty InRelease
Err http://archive.canonical.com trusty Release.gpg
Could not resolve 'archive.canonical.com'
Err http://extras.ubuntu.com trusty Release.gpg
Could not resolve 'extras.ubuntu.com'
Err http://security.ubuntu.com trusty-security Release.gpg
Could not resolve 'security.ubuntu.com'
Err http://packages.ros.org trusty InRelease
Err http://packages.ros.org trusty Release.gpg
Could not resolve 'packages.ros.org'
Err http://us.archive.ubuntu.com trusty InRelease
Err http://us.archive.ubuntu.com trusty-updates InRelease
Err http://us.archive.ubuntu.com trusty-backports InRelease
Err http://us.archive.ubuntu.com trusty Release.gpg
Could not resolve 'us.archive.ubuntu.com'
Err http://us.archive.ubuntu.com trusty-updates Release.gpg
Could not resolve 'us.archive.ubuntu.com'
Err http://us.archive.ubuntu.com trusty-backports Release.gpg
Could not resolve 'us.archive.ubuntu.com'
Reading package lists... Done
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/trusty/InRelease
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/trusty-updates/InRelease
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/trusty-backports/InRelease
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/trusty-security/InRelease
W: Failed to fetch http://archive.canonical.com/ubuntu/dists/trusty/InRelease
W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/trusty/InRelease
W: Failed to fetch http://packages.ros.org/ros/ubuntu/dists/trusty/InRelease
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/trusty-security/Release.gpg Could not resolve 'security.ubuntu.com'
W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/trusty/Release.gpg Could not resolve 'extras.ubuntu.com'
W: Failed to fetch http://archive.canonical.com/ubuntu/dists/trusty/Release.gpg Could not resolve 'archive.canonical.com'
W: Failed to fetch http://packages.ros.org/ros/ubuntu/dists/trusty/Release.gpg Could not resolve 'packages.ros.org'
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/trusty/Release.gpg Could not resolve 'us.archive.ubuntu.com'
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/trusty-updates/Release.gpg Could not resolve 'us.archive.ubuntu.com'
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/trusty-backports/Release.gpg Could not ...