If you don't fix the permissions as Ugo suggests, rospack will still
work correctly, but it will be slower than it could be, because it
can't cache package locations.  Depending on the size and nature of
your ROS installation, it can be important to enable caching, because
rospack is used to look up package locations very frequently,
including at run time.

	brian.

On Thu, Sep 2, 2010 at 7:56 AM, Ugo Cupcic <ugo@shadowrobot.com> wrote:
>  Hey,
>
> You should probably check your permissions for the .ros folder? (ls -l
> ~/.ros) and modify them if you don't have write access or if you don't
> own the folder.
>
> Cheers,
>
> Ugo
>
> On 02/09/10 14:04, yimeiliao wrote:
>> hallo,
>>
>> i just installed ros on my ubuntu 10.04 netbook version. when i tried
>> "rospack find roscpp" i got an error message
>>
>> [rospack] Unable to create temporary cache file
>> /home/waxwings/.ros/.rospack_cache.jmdWZ9: Permission denied
>> /home/waxwings/ros/ros/core/roscpp
>>
>> is this a problem?
>>
>> Regards
>> yimei
>
> --
> Ugo Cupcic         |  Shadow Robot Company | ugo@shadowrobot.com
> Software Engineer  |    251 Liverpool Road |
> need a Hand?       |    London  N1 1LX     | +44 20 7700 2487
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