Rosdep update problems

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Hey,

I just set up a fresh Fuerte Installation on Precise and tried to install rosdep using the deb-packages. I successfully ran:

sudo apt-get install python-rosdep
sudo rosdep init

but

rosdep update

returns:

ERROR: Rosdep experienced an internal error: [Errno 13] Permission denied: '/etc/ros/rosdep/sources.list.d'
Please go to the rosdep page [1] and file a bug report with the stack trace below.
[1] : http://www.ros.org/wiki/rosdep

Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/rosdep2/main.py", line 111, in rosdep_main
    exit_code = _rosdep_main(args)
  File "/usr/lib/pymodules/python2.7/rosdep2/main.py", line 230, in _rosdep_main
    return _no_args_handler(command, parser, options, args)
  File "/usr/lib/pymodules/python2.7/rosdep2/main.py", line 238, in _no_args_handler
    return command_handlers[command](options)
  File "/usr/lib/pymodules/python2.7/rosdep2/main.py", line 341, in command_update
    filelist = [f for f in os.listdir(sources_list_dir) if f.endswith('.list')]
OSError: [Errno 13] Permission denied: '/etc/ros/rosdep/sources.list.d'

Seems like rosdep is trying to write somewhere it has no permissions. It works when I do:

sudo rosdep update

But trying to use rosdep, it again tells, it is not initialized:

rosdep install libmove3d move3d_studio

ERROR: your rosdep installation has not been initialized yet.  Please run:

    sudo rosdep init
    rosdep update

I don't think there is something wrong with my setup, I just installed ROS Fuerte and rosws fresh, but still it seems to be a problem with my permissions... any idea?