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Help with opencv random error

asked 2014-07-08 10:15:19 -0500

TT gravatar image


So I have been working with opencv and ros to do object detection and everything seemed to be fine until the other day and suddenly when i start using the SURF detection line of code I get this error.

/home/frank/catkin_ws/devel/lib/bingo_detection/bingo_detection_server: symbol lookup error: /home/frank/catkin_ws/devel/lib/bingo_detection/bingo_detection_server: undefined symbol: _ZNK2cv9Feature2D7computeERKNS_3MatERSt6vectorINS_8KeyPointESaIS5_EERS1_

I have no idea what I did.

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answered 2014-07-08 13:01:35 -0500

TT gravatar image

I figured it out,

It was an issue with the CMakeList.txt and the OpenCV libraries. I had originally had the CMakeLists.txt addtarget to specific folder inside my project which had the opencv libraries. But for whatever reason when i did an update it would no longer let me do this so i just needed to remove

${CMAKE_CURRENT_SOURCE_DIR}/lib/ And all others...

and replace with


And that fixed the problem

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@TT: can you post your system specifics, like Linux distro, hardware platform, etc ? Since this is solved, we might as well document it; Might can help other souls going through the same calvary. I will vote you answer right, since you with your current karma points may not be able to do so.

ccapriotti gravatar image ccapriotti  ( 2014-07-08 15:44:52 -0500 )edit

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Asked: 2014-07-08 10:15:19 -0500

Seen: 203 times

Last updated: Jul 08 '14