Transform from rosbuild package to catkin package

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My OS is ubuntu12.10 and ros groovy.

I want to transform pr2_controllers_msgs package.

command:catkinize pr2_controllers_msgs 1.0.0

error message:

ira@ira:~/code/ros_groovy/src$ catkinize pr2_controllers_msgs 1.0.0
Traceback (most recent call last):
  File "/usr/local/bin/catkinize", line 5, in <module>
    pkg_resources.run_script('catkinize==0.1', 'catkinize')
  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 499, in run_script
    self.require(requires)[0].run_script(script_name, ns)
  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 1239, in run_script
    execfile(script_filename, namespace, namespace)
  File "/usr/local/lib/python2.7/dist-packages/catkinize-0.1-py2.7.egg/EGG-INFO/scripts/catkinize", line 61, in <module>
    main()
  File "/usr/local/lib/python2.7/dist-packages/catkinize-0.1-py2.7.egg/EGG-INFO/scripts/catkinize", line 56, in main
    changeset = catkinize_stack(path, version)
  File "/usr/local/lib/python2.7/dist-packages/catkinize-0.1-py2.7.egg/catkinize/main.py", line 79, in catkinize_stack
    path)
ValueError: Path is not a rosbuild stack, missing stack.xml at pr2_controllers_msgs
ira@ira:~/code/ros_groovy/src$

How to solve it?