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industrial_ci - Add colcon arguments for selecting packages to build

I'm looking for some solutions: to add option --packages-up-to <package_name> during the colcon build and test phase. How can be it done on Github Actions? I'...
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ROS Environment variables not set after new Humble install on Ubuntu 22.04

I carefully followed the install instructions for installing ROS2 Humble binary. https://docs.ros.org/en/humble/Installation/Ubuntu-Install-Debians.html The install had no errors. And I did the talker-...
rosnoob's user avatar
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Best way to add package's models path to GAZEBO_MODEL_PATH in ROS2?

In ROS1, you could add your package's models path to the GAZEBO_MODEL_PATH in package.xml (e....
shonigmann's user avatar
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rosout and stderr not appearing in ROS_LOG_DIR

I changed the ROS_LOG_DIR from the default and now I am only seeing node specific stdout.log files in the generated folders. I know my nodes are generating stderr messages with ROS_ERROR_STREAM but I ...
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How to Implement Global Ros Variables

I am working on a stationary pick-and-place type robot. I have created a large catkin workspace for a project that uses various packages. Currently, when I want to change certain variables in my ...
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Catkin install destination

I'm trying to figure out where my files should be installed by the Cmake install() macro (ROS melodic on Ubuntu 18.04). I found this list of catkin environment variables which are relative to the <...
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1 answer
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paths for the package to ros envrionment variables, not found

Hi, have a package with one cpp file, worked great. added another cpp file and built the workspace, now rosrun can't locate the package any more. when creating the package I have implemented this ...
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1 answer
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Launching ROS on QNX 7.0

I have compiled ROS from source for QNX and ported the binaries to the QNX machine. As a first step Id have to source the setup script in the devel folder. Since "source" command does not ...
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Roslaunch and env variables for HOSTNAME

In my launch file I want to read the hostname from user input and when it is missing, it will use the local hostname by default. I use this line in my launch file ...
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1 answer
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How to reference environmental variables inside an upstart installed launch file?

I have successfully managed to install a launch file but upon rebooting found that none of the environmental variables referenced in the launch file are found. Granted, the launch files are guilty of ...
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1 answer
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opening data file or image in specific folder in package

Is there a way to access a specific folder to open a data file or image in an ROS package? I suppose I could find the environmental variable HOME then write the full path by adding the strings, but it ...
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How to use variable's value (subscriber function) in another function

Hello all ! I want to pass the variable which is set to its value when called the callback function. and then want to use the value of the variable in another function. ...
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Sending variables from one nodes to another

Hello all ! I am using Hydro version of ROS. I have created a node in which I made a variable and store the value in it. Now I have to pass that variable value to another node. So that it can access ...
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1 answer
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ROS_DISTRO was set to 'fuerte' before. Please make sure that the environment does not mix paths from different distributions

ROS_DISTRO was set to 'fuerte' before. Please make sure that the environment does not mix paths from different distributions. I HAVE INSTALLED FUERTE AND HYDRO . HOW TO SET ENVIRONMENTAL VARIABLES FOR ...
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Setting up ROS, where to put environment variable?

Hi, Where should I place the following in Ubuntu 12.04? export ROS_PACKAGE_PATH=~/catkin_ws:$ROS_PACKAGE_PATH I want to launch this everytime so that I can just use roscd beginner_tutorials everytime. ...
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2 answers
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Eclipse not resolving anything

I recently got eclipse setup and loaded the catkin project into it. However it seems incapable of resolving anything in the project. Not even standard math functions like atan or sqrt. I am running ...
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1 answer
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ROS_PACKAGE_PATH environment

Hi, I'm trying to set my ROS_PACKAGE_PATH variable permanently. I appended the following line to the etc/environment file: ROS_PACKAGE_PATH="/home/zayin/catkin_ws/src:/opt/ros/groovy/share:/opt/...
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ROS_PACKAGE_PATH for catkin beginners

Section 1.2.2 of beginner level tutorial "8.Using rqt_console and roslaunch" says: *If roscd fails, remember to set the ROS_PACKAGE_PATH variable in your terminal. Then the commands will ...
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rosmake does not respect ROS_PARALLEL_JOBS or --pjobs

rosmake in ROS fuerte does not seem to respect the ROS_PARALLEL_JOBS=-jN environment variable nor the --pjobs=N command line option for compiling with N+1 processes. Instead, the number of rosmake ...
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1 answer
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Switching catkin workspaces carries old env vars

Often I want to switch from my main catkin workspace oldws to sandbox workspace newws. But sourcing ...
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1 answer
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Duplicate directories in $ROS_PACKAGE_PATH

ROS_PACKAGE_PATH variable contains duplicate elements. It's weird, since I was following the very first tutorials step by step. When we were supposed to check that our variable was pointing to the ...
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NodeHandle::getParam() is unable to resolve Environmental variables

I have a launchfile in which I want to specify the path to a specific file, e.g. haarcascade_frontalface_alt.xml. Normally, I would just use the ...
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