Could not find a configuration file for package pr2_controller_interface

edit

In the pr2_mechanism tutorial ( http://wiki.ros.org/pr2_mechanism/Tut... ) it uses 'rosbuild' to build the code which is quite outdated. So in the part 3 of the tutorial, I use 'catkin_make' to build my package instead of using 'rosmake' which is used in the tutorial. But I overcome two errors:

1. Could not find a configuration file for package pr2_mechanism_model.
2. Could not find a configuration file for package pr2_controller_interface.

I can 'roscd' these two packages so I think they should have been found by catkin_make. Can anyone tell me the solution? Thank you very much.

This is the 'find_package" in my CMakeList.txt:

find_package(catkin REQUIRED COMPONENTS
  pluginlib
  pr2_controller_interface
  pr2_mechanism_model
)

PS. Can anyone update the tutorials to use the new build system catkin_make? And I find that some tutorials are quite outdated and need updating immediately. But since I am new to ROS and PR2, I cannot do more but asking questions.