Tutorials - Understanding ROS Nodes

asked 2012-08-02 04:23:54 -0500

Janina
5 ●11 ●12 ●16

Hello!

I have Ubuntu 10.04 and installes ROS electric.

I am trying to make $ rosmake turtlesim (Tutorials - Understanding ROS Nodes), but get following error message:

rosmake Packages requested are: ['turtlesim']
rosmake Logging to directory/home/janina/.ros/rosmake/rosmake_output-20120802-160904 rosmake Expanded args ['turtlesim'] to: []
rosmake WARNING: The following args could not be parsed as stacks or packages: ['turtlesim'] rosmake ERROR: No arguments could be parsed into valid package or stack names.

How can I install the turtlesim package? I think it,s missing?

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answered 2012-08-05 08:46:22 -0500

tlinder

663 ●7 ●8 ●16 http://bohnenstroh.homeip.net/

You need to export the package paths correctly. As you allready noticed your packages can not be found. The reason is most likely that you did not correct setup the ROS_PACKAGE_PATH variable.

you can check the Path by:

echo $ROS_PACKAGE_PATH

The output shows the paths which ROS is searching for Packages.

Check also this page here

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answered 2012-08-02 04:44:24 -0500

KruseT

7848 ●40 ●87 ●146

The tutorial assumes you have first completed the tutorial before:

http://www.ros.org/wiki/ROS/Tutorials/BuildingPackages

That's where it explains how to get turtlesim.

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answered 2012-08-06 01:29:56 -0500

SivamPillai

flag of United Kingdom of Great Britain and Northern Ireland

612 ●15 ●20 ●29 http://www.spadig.org/

Hi,

Turtlesim comes as a stack by default with your ros-electric installation. However, if you believe its still missing you may Click here to obtain the package from the ROS website.

As said by tlinder you may have to check your $ROS_PACKAGE_PATH in order to see if ros is able to locate the package present in your folders. We may be able to help further if you can post the output of the following command:

echo $ROS_PACKAGE_PATH

Cheers.