Can't find EigenConfig.cmake when building rgbdslam_v2

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Hi

I'm trying to build rgbdslam_v2 in ROS Indigo. When I run catkin_make I get the error below.

 CMake Warning at /opt/ros/indigo/share/catkin/cmake/catkinConfig.cmake:76 (find_package):
  Could not find a package configuration file provided by "Eigen" with any of
  the following names:

    EigenConfig.cmake
    eigen-config.cmake

  Add the installation prefix of "Eigen" to CMAKE_PREFIX_PATH or set
  "Eigen_DIR" to a directory containing one of the above files.  If "Eigen"
  provides a separate development package or SDK, be sure it has been
  installed.
Call Stack (most recent call first):
  rgbdslam_v2/CMakeLists.txt:55 (find_package)


-- Could not find the required component 'Eigen'. The following CMake error indicates that you either need to install the package with the same name or change your environment so that it can be found.
CMake Error at /opt/ros/indigo/share/catkin/cmake/catkinConfig.cmake:83 (find_package):
  Could not find a package configuration file provided by "Eigen" with any of
  the following names:

    EigenConfig.cmake
    eigen-config.cmake

  Add the installation prefix of "Eigen" to CMAKE_PREFIX_PATH or set
  "Eigen_DIR" to a directory containing one of the above files.  If "Eigen"
  provides a separate development package or SDK, be sure it has been
  installed.
Call Stack (most recent call first):
  rgbdslam_v2/CMakeLists.txt:55 (find_package)


-- Configuring incomplete, errors occurred!
See also "/home/ap/catkin_ws/build/CMakeFiles/CMakeOutput.log".
See also "/home/ap/catkin_ws/build/CMakeFiles/CMakeError.log".
make: *** [cmake_check_build_system] Error 1
Invoking "make cmake_check_build_system" failed

I tried this and looked at this and this but I still get the same error.

Here are the CMakeLists.txt and package.xml files. I edited the files that came with the rgbdslam_v2 package so they are really long to put in here. I added the changes from here.

Thank you