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Compilation error /usr/bin/ld: cannot find -l&

This is the error i received when compiling and i am not sure how to fix this error. ...
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Undefined reference to cv::Feature2D::compute

Hi, I am running ROS Hydro and OpenCV 2.4.7, using openFabMap and SURF. When I do catkin_make on my project, I get the following error: ...
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