unable to locate ros-indigo-turtlebot-simulator

indigo

asked 2019-03-13 06:39:57 -0500

resolver101757
3 ●3 ●3 ●7

updated 2019-03-13 10:17:58 -0500

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 ...

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Thanks for the quick reply. Yeah thats what i was typing to get the response "E: Unable to locate package ros-indigo-turtlebot-simulator". Any other ideas?

resolver101757 ( 2019-03-13 07:32:17 -0500 )edit

oh sorry, i did not know that you were typing the same command. you might need to clone simulator pkgs from github and build it. Do not forget to source your workspace

mali ( 2019-03-13 08:07:16 -0500 )edit

@mali:

you might need to clone simulator pkgs from github and build it.

can you clarify why you give this advice?

Building packages from source is very rarely needed, and should really only be a last resort option.

gvdhoorn ( 2019-03-13 09:14:32 -0500 )edit

I think it is the second option he has, as he could not install it using sudo apt-get install ...

mali ( 2019-03-13 09:47:37 -0500 )edit

The first thing to do would be to figure out whyapt claims to not be able to find that package for installation. Only if it turns out that it's really unavailable, then we could consider recommending building it from source.

gvdhoorn ( 2019-03-13 09:48:45 -0500 )edit

how do i find out why apt cant find the file?

resolver101757 ( 2019-03-13 09:55:20 -0500 )edit

There is no direct way afaik, but can you install any ROS package using apt? Did you run sudo apt-get update recently?

gvdhoorn ( 2019-03-13 10:00:51 -0500 )edit

thanks for your comments. I feel we're getting further. I've added the source and the response from sudo-apt update. Any ideas from here? your help is appreciated.

resolver101757 ( 2019-03-13 10:18:59 -0500 )edit

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