Ex4.4 subscribe Odom (ROS Basics in 5 days C++)

Course Support ROS Basics In 5 Days (C++)
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Thank you very much Girish, I think there’s something wrong in my ws.

I’ve relaunched the gazebo, the result remains unchanged. I’ve tried pose.pose.position.x as well, no output on terminal.

The content of /odom topic:
odom-frame_id

I’ve posted the issue here: ERROR: cannot launch node of type


I've solved the issue:

Step 1: rosrun pkgname nodename to verify the node
Step 2: Confirm that catkin_package(...) & include_directories(...) are placed before any executables
Step 3: catkin_make and source



Thanks for the reminder as well, the message_generation and catkin_package in CMakeLists.txt are intended for my custom message in another project.