报错信息
Resource not found: openni2_launch
ROS path [0]=/opt/ros/melodic/share/ros
ROS path [1]=/media/zhangdama/F4ACC8D7C3CD6C91/kobuki_gazebo_imitation/mount/vln-pano2real-ros/src
ROS path [2]=/opt/ros/melodic/share
The traceback for the exception was written to the log file
解决方法
sudo apt-get install ros-melodic-openni2-camera