Hmm.. there were too many of those files to tell which ones were unnecessary
so i just started over. I'm seeing something different when I attempt to
install the package dependencies for turtlesim:

$ rosdep install turtlesim
Traceback (most recent call last):
  File "/home/ian/ros/ros/bin/rosdep", line 35, in <module>
    sys.exit(rosdep.main())
  File "/home/ian/ros/ros/tools/rosdep/src/rosdep/main.py", line 141, in
main
    r.install(options.include_duplicates, options.default_yes);
  File "/home/ian/ros/ros/tools/rosdep/src/rosdep/core.py", line 366, in
install
    script = self.generate_script(include_duplicates, default_yes)
  File "/home/ian/ros/ros/tools/rosdep/src/rosdep/core.py", line 329, in
generate_script
    native_packages, scripts = self.get_packages_and_scripts()
  File "/home/ian/ros/ros/tools/rosdep/src/rosdep/core.py", line 301, in
get_packages_and_scripts
    rdlp = RosdepLookupPackage(self.osi.get_name(), self.osi.get_version(),
p, yc)
  File "/home/ian/ros/ros/tools/rosdep/src/rosdep/core.py", line 166, in
__init__
    self.load_for_package(package, yaml_cache.rp)
  File "/home/ian/ros/ros/tools/rosdep/src/rosdep/core.py", line 192, in
load_for_package
    paths.add( os.path.join(roslib.stacks.get_stack_dir(stack),
"rosdep.yaml"))
  File "/home/ian/ros/ros/core/roslib/src/roslib/stacks.py", line 152, in
get_stack_dir
    raise InvalidROSStackException("Cannot location installation of stack
%s. ROS_ROOT[%s] ROS_PACKAGE_PATH[%s]"%(stack, env[ROS_ROOT],
env.get(ROS_PACKAGE_PATH, '')))
roslib.stacks.InvalidROSStackException: Cannot location installation of
stack ros_tutorials. ROS_ROOT[/home/ian/ros/ros]
ROS_PACKAGE_PATH[/home/ian/ros/stacks]

It looks like the location of the ros_tutorials stack is incorrect. I would
assume I have to move it into the stacks folder. Am I right? Thanks for all
the help so far Tully and Blaise :)

-Ian
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