Cannot find executable ROS is using [closed]

asked 2020-07-23 10:32:55 -0500

savritzer
1 ●2 ●4 ●3

Hello,

I am running ROS 1.12.14 on a Ubuntu 16.04.12 (kernel version: 4.15.0-107-generic, gcc version: 5.4.0 20160609). I am trying to modify one of my nodes, but after a few tries I realized the executable I was modifying is not the one being used by ROS (the program even runs if I just delete the executable completely) and I cannot find the other version of this exe that is actually being used. I was wondering if there is a way of figuring out which executable ROS is using?

Thank you!

Closed for the following reason duplicate question by savritzer
close date 2020-07-24 13:12:11.441480

answered 2020-07-23 13:00:35 -0500

kosmastsk
210 ●7 ●19 ●19

Try roscd package_name to find the path where the package used is installed and the source code can be found there. Probably what you are using has been also installed using apt-get (or something similar) and a different executable is used

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Also, you can also try roscd outside the catkin_ws of your node (i.e., do not source source devel/setup.bash your workspace) to find the location of the pre-installed package (if any).

praskot ( 2020-07-23 16:38:31 -0500 )edit

I tried the roscd command and it leads me to the package location I expected (where the executables I was modifying where). It doesn't seem to find any other version of this package.

savritzer ( 2020-07-24 10:51:43 -0500 )edit

Did you build your workspace again after making any changes or even deleting the executable?

kosmastsk ( 2020-07-24 11:28:59 -0500 )edit

I just tried rebuilding it with catkin_make clean and the executables don't get compiled and my code can't find them (as I would expect). If I try just catkin_make after that the executables are made, but then I run into the original problem where it looks like these are not the executables being used.

savritzer ( 2020-07-24 11:45:24 -0500 )edit

List of things you can try:

Delete the build and devel folders and catkin_make again (hopefully you do not have too many packages in the workspace)
Or create another temporary catkin_ws and compile the package over there.
Ensure that you haven't changed the executable name in the CMakeLists and ensure the right source code and libraries are linked to it.

praskot ( 2020-07-24 12:23:22 -0500 )edit

Deleting the executables with catkin_make clean and then remaking them with just catkin_make seems to work! Thank you for the help!

savritzer ( 2020-07-24 13:11:54 -0500 )edit

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Cannot find executable ROS is using [closed]

Closed for the following reason duplicate question by savritzer
close date 2020-07-24 13:12:11.441480

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Cannot find executable ROS is using [closed] edit

Closed for the following reason duplicate question by savritzer close date 2020-07-24 13:12:11.441480

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Cannot find executable ROS is using [closed]

Closed for the following reason duplicate question by savritzer
close date 2020-07-24 13:12:11.441480