[ROS] Issues: rtabmap_ros "process has died" Error
Environment: ROS Noetic Problem The apt package of rtabmap_ros was removed before building it from the source. RTAB-Map stand alone was installed from source. NO errors. rtabmap_ros was installed from source. No errors. When the rtabmap_ros was launched, the error of "process has died" was occuerd. Solution Delete the build and devel folders in the catkin_ws and run catkin_make.