Getting error in starting rtabmap in ros

[vinit payal]

while running command rosrun rtabmap_ros rtabmap rtabmap is not starting and showing error . Snapshot of error is attached .

[matlabbe]

Is librtabmap_core.so.0.8 exist in /opt/ros/hydro/lib folder?

$ ls /opt/ros/hydro/lib/librtabmap_core*
/opt/ros/hydro/lib/librtabmap_core.so      
/opt/ros/hydro/lib/librtabmap_core.so.0.8
/opt/ros/hydro/lib/librtabmap_core.so.0.8.2

Try reinstall ros-hydro-rtabmap-ros:

$ sudo apt-get remove ros-hydro-rtabmap-ros ros-hydro-rtabmap
$ sudo apt-get install ros-hydro-rtabmap-ros