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Missing commands (ROS2 dashing, Ubuntu 18.04)

asked 2019-10-31 17:07:58 -0500

pathojin gravatar image

Hi, I was going through the ROS2 tutorials using turtlesim, and I got to the "Understanding ROS2 services" tutorial (, where it tells me to run the following command

ros2 service type abcdef

When I tried to run this, I got an error saying that "type" isn't a valid command. Running "ros2 service type -h" shows that I only have two commands in "service": "list" and "call". Upon doing some googling, it seems like I'm missing "find" and "type" from service. Additionally I realized that I'm missing the "interface" commands entirely. I guess I messed up my installation of ROS2? How do I go about fixing this problem? Thanks in advance for any help!

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answered 2019-11-04 22:22:13 -0500

jschornak gravatar image

updated 2019-11-05 09:03:06 -0500

Which version of ROS2 do you have and how did you install it?

I'm using a binary install of ROS Dashing and I don't have those commands either. It looks like the change to the ros2service package that added the type and find command line verbs hasn't been back-ported into Dashing, so those commands will only be available on the master branch until the Eloquent release.

Compare the Dashing branch of ros2service to the master branch.

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So there isn't a way for me to add these commands?

pathojin gravatar image pathojin  ( 2019-11-10 13:29:07 -0500 )edit

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Asked: 2019-10-31 17:07:58 -0500

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Last updated: Nov 05 '19