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Can't use geometry_msgs on a Raspberry Pi 4

asked 2021-02-07 23:13:29 -0600

RobotHunter gravatar image

Sorry if this is a simple question, I'm not too experienced with ROS. I downloaded ROS Noetic onto a Raspberry Pi 4 Model B, and I'm trying to use the Bradanlane ros-i2cpwmboard controller. However, whenever I try to to run catkin_make, I get an error that says "fatal error: geometry_msgs/Twist.h: No such file or directory"

I tried going into the ros-12cpwmboard package's CMakeLists, and add geometry_msgs to find_packages and catkin_package (for reference, it ended up like:

find_package(catkin REQUIRED COMPONENTS roscpp std_msgs message_generation geometry_msgs)
...
catkin_package(CATKIN_DEPENDS roscpp std_msgs message_runtime geometry_msgs)

) And then in the package.xml file, I add geometry_msgs to the necessary dependencies (<build_depend>geometry_msgs</build_depend> and <run_depend>geometry_msgs</run_depend>)

When I do this and then try catkin_make again, I instead get this error: 'Could not find a package configuration file provided by "geometry_msgs" with any of the following names "geometry_msgsConfig.cmake" "geometry_msgs-config.cmake"'

I'm using the SunFounder PiCar-V robot car, which can be found here: https://www.sunfounder.com/products/s... Does anyone know what could be the problem? I followed a tutorial on how to download ROS Noetic onto a Raspberry Pi and I was also following a tutorial online on using these packages. Thanks for any help.

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What's the output of rospack find geometry_msgs? Also check out this similar question

abhishek47 gravatar image abhishek47  ( 2021-02-08 09:33:39 -0600 )edit

Doing this in the catkin_ws gives [rospack] Error: package 'geometry_msgs' not found

RobotHunter gravatar image RobotHunter  ( 2021-02-08 09:45:52 -0600 )edit

Here are the tutorials I used: Installing ROS Noetic on a Raspberry Pi 4: https://varhowto.com/install-ros-noet... Installing additional packages for i2cpwm control and getting the robot car to move: https://www.youtube.com/watch?v=iLiI_...

RobotHunter gravatar image RobotHunter  ( 2021-02-08 09:48:58 -0600 )edit

Since your problem doesn't have anything to do with Raspberry Pi, may be you should consider updating your title

abhishek47 gravatar image abhishek47  ( 2021-02-09 03:33:32 -0600 )edit

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answered 2021-02-09 12:37:02 -0600

RobotHunter gravatar image

Thanks for your help, I was able to figure it out, I needed to download common_msgs from Github. However, this has led to another error with the i2cpwm controller. If anyone wants to look into that, I posted about that here. I'll try the solution that ingtux gave me regardless to see if that can fix this new issue.

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answered 2021-02-09 02:56:47 -0600

ingtux gravatar image

updated 2021-02-09 03:51:13 -0600

It doesn't look like you can see any of the ROS packages. You need to source your noetic environment with source /opt/ros/noetic/setup.bash

To source automatically when opening a new terminal add it to your bashrc. In terminal:

echo "source /opt/ros/noetic/setup.bash" >> ~/.bashrc

source ~/.bashrc

Then try rospack find geometry_msgs If it's still missing, try

sudo apt install ros-noetic-geometry-msgs

and try the rospack command again. If you can't install from apt sources you will need to build the package manually.

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"It doesn't look like you can see any of the ROS packages." -- if that were the case, wouldn't a similar error have occurred for std_msgs?

abhishek47 gravatar image abhishek47  ( 2021-02-09 03:28:45 -0600 )edit
1

For all we know it could have an error for std_msgs too. I'd say the package just literally isn't installed and this post is completely unclear about how their setup is configured.

ingtux gravatar image ingtux  ( 2021-02-09 03:53:36 -0600 )edit

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Asked: 2021-02-07 23:13:29 -0600

Seen: 488 times

Last updated: Feb 09 '21