error while loading shared libraries: libopencv_core3.so.3.3: cannot open shared object file

[rfzeg]

I am running ROS Kinetic and Gazebo 7.8.1 on Ubuntu 16.04. on VMWare Player 14. First I installed ar_track_alvar: $ sudo apt-get install ros-kinetic-ar-track-alvar As running $ pkg-config --modversion opencv showed the following message: "Package opencv was not found in the pkg-config search path. I installed openCV with this command: $ sudo apt-get install libopencv-dev But when launching ar_track_alvar I get this error message: "/opt/ros/kinetic/lib/ar_track_alvar/individualMarkersNoKinect: error while loading shared libraries: libopencv_core3.so.3.3: cannot open shared object file: No such file or directory"

Inside my /opt/ros/kinetic/lib folder I see libopencv_core3.so, libopencv_core3.so.3.2, and libopencv_core3.so.3.2.0, but not libopencv_core3.so.3.3

Related issues that I found are:

• https://discourse.ros.org/t/opencv-3-3-1-is-breaking-builds-in-kinetic/3384
• https://github.com/ros/ros-overlay/issues/104

I also tried: $ sudo apt install --reinstall ros-kinetic-opencv3 but the problem still persists.

Any help would be greatly appreciated.

[rfzeg]

Running:

$ sudo apt-get update
$ sudo apt-get dist-upgrade

Solved the issue.