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]

My nodes using OpenCV have ${OpenCV_LIBS} in their target_link_libraries definition. I don't know what other OpenCV functions you are using, but since you get link errors on OpenCV symbols, it is worth checking whether you actually link the OpenCV library in your application.

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.