Unable to use rosrun

asked 2020-02-03 22:23:57 -0500

shashi
43 ●4 ●5 ●7

$ rosrun turtlesim
Usage: rosrun [--prefix cmd] [--debug] PACKAGE EXECUTABLE [ARGS] 
rosrun will locate PACKAGE and try to find
  an executable named EXECUTABLE in the PACKAGE tree.
  If it finds it, it will run it with ARGS.

I was also unable to use rosrun for locating executable in another package. Any suggestion on what could be the reason for this?

answered 2020-02-03 23:20:10 -0500

stevemacenski

8272 ●34 ●503 ●129 https://www.linkedin.c...

updated 2020-02-04 04:28:16 -0500

gvdhoorn
86574 ●283 ●1432 ●1054 http://cor.tudelft.nl/

Hi,

Welcome to the community!

Your issue is that you've not included a node to run. The rosrun syntax is:

rosrun <package name> <executable name>

So you've gotten the package name correct with turtlesim, but you're missing the actual node itself you're trying to run. For this demo, what you're looking for is:

rosrun turtlesim turtlesim_node

Happy ROSing

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@stevemacenski: it's actually rosrun, not roslaunch ;)

gvdhoorn ( 2020-02-04 04:28:29 -0500 )edit

Thanks for your answer.

I see in a video lecture that rosrun work as listing the executables in the package when run without node name. However, even after providing package and executable name, I am getting the error that package is not found.

shashi ( 2020-02-06 10:08:13 -0500 )edit

If you have just the rosrun and turtlesim, and you tab complete it should give you the list, but that's not the same thing as running.

I don't know what video lecture you're referring to.

Are you sure you've actually built this package, installed it, or sourced the setup.sh file to get it in your environment paths?

stevemacenski ( 2020-02-06 12:44:48 -0500 )edit

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