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roslaunch [ ] is neither a launch file in package [ ] nor is [ ] a launch file name

asked 2021-11-06 14:28:25 -0600

jonaas11 gravatar image

updated 2021-11-14 09:35:20 -0600

lucasw gravatar image

I am trying to use a package I found on github in order to play around gazebo and ROS. I found this project and I followed every single step:

  1. Installed Ubuntu Focal 20.04
  2. Installed ROS Noetic (which automatically installs Gazebo as well)
  3. Installed Opencv-python
  4. Created a catkin workspace following this guide
  5. Cloned the repo into /src/ directory
  6. Ran the catkin_make command in order to "build" the project

Given this, I'm able to run the roscore command and every other command written in the github guide (even the pythin script) besides roslaunch my2wr gazebo.launch which generates an error.

It warns me about the aws_robomaker_racetrack_world file / directory, but I don't know what to do. I already browsed some other guides in this forum and they were mainly fixed using the source commands, but I tried it myself and it didn't work as well. Is there any issue with the github guide itself or am I doing something wrong here??

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In the future, please copy/paste the exact error message. It's often crucial for us to provide accurate answers.

Mike Scheutzow gravatar image Mike Scheutzow  ( 2021-11-07 08:23:51 -0600 )edit

2 Answers

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answered 2021-11-07 08:20:43 -0600

Mike Scheutzow gravatar image

I see a number of issues here. I think this example is a poor starting point if you are new to ROS.

  1. I fixed your "repo" link.
  2. The install instructions for that repo are incomplete, because he is using git submodules. That's why the world is missing.
  3. The organization of that git repo is not standard, so I'm not sure if it will even work with catkin_make.
  4. The instructions fail to tell you to source devel/setup.bash from your top-level catkin_ws directory.
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answered 2021-11-06 20:50:12 -0600

billy gravatar image

Are you typing that command from the folder that the file is in?

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Asked: 2021-11-06 14:28:25 -0600

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Last updated: Nov 07 '21