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Hi, I'm getting a similar error as in the initial post. I'm a bit new at Ubuntu so this maybe strait forward and I just have no clue how to do it. But how exactly do you follow the steps on page http://www.ros.org/wiki/eigen?action=recall&rev=59?

I created the "FindEigen.cmake" by creating a new empty document and pasting the code from https://code.ros.org/svn/ros-pkg/stacks/laser_pipeline/trunk/laser_geometry/cmake/FindEigen.cmake.

but where exactly do I put this file for any of the previous commands,

find_package(Eigen REQUIRED)

include_directories(${Eigen_INCLUDE_DIRS})

to work?

it just says ./cmake folder... "You need to include it by default in your package (in a ./cmake folder for example)."