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This part of the tutorial means you need to use a terminal to navigate to the top level directory of your workspace then run catkin_make
For example if you have a workspace directory called my_project_ws inside your home directory you can open a terminal and type the following command to move to the workspace.
cd ~/my_project_ws
If you type the ls command (short for list) it will show the contents of this directory which should contain a src directory and possibly some other directories and files. Now you're in the right location you can build your package by typing:
catkin_make
Hope this clears this up for you.
My workspace is catkin_ws I use two commands cd ~/catkin_ws catkin_make After that I use rosrun using_markers basic _shapes where using_markers is package name and i want to run basic_shapes. But I am getting error, [WARN] Please create a subscriber to the marker Please help with this error
Okay you've got the build working that's great. To keep these answers tidy can you please accept this answer and ask a new question for the warning you've just described. It gets confusing if more than one question get asked and answered in a single thread. Thanks.
Looking at the source code of the node. The message [WARN] Please create a subscriber to the marker isn't an error at all it's what the node is meant to do. try starting RVIZ and viewing the topic, that should show everything working.
I'm exactly at this point, but I'm not able to use catkin_make. The error shows
The specified base path "/home/xxxxxxxx/using_markers" contains a package but "catkin_make" must be invoked in the root of workspace
home/using_makers/
inside using_makers package, there is src, include, CMakeLists.txt and Package.xml
ROS: Noetic
Asked: 2018-01-12 02:29:20 -0600
Seen: 582 times
Last updated: Jan 12 '18
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Please state more clearly what your Problem is. Don't you understand what this means or is there a Problem with the build?
My workspace is catkin_ws I use two commands cd ~/catkin_ws catkin_make After that I use rosrun using_markers basic _shapes where using_markers is package name and i want to run basic_shapes. But I am getting error, [WARN] Please create a subscriber to the marker