Attention: Answers.ros.org is deprecated as of August the 11th, 2023. Please visit robotics.stackexchange.com to ask a new question. This site will remain online in read-only mode during the transition and into the foreseeable future. Selected questions and answers have been migrated, and redirects have been put in place to direct users to the corresponding questions on Robotics Stack Exchange. Additional details are available here.

Revision history [back]

As I understand it, it has something to do with this problem too https://answers.ros.org/question/256277/opencv3-install-extra-modules-ros-kinetic/

As the answer says, the OpenCV package that is installed with ROS already include the extra-modules with exception of the neural networks. Since I don't find a solution to this either, this problem is now closed

ROS Answers is licensed under Creative Commons Attribution 3.0 Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.