Permission Denied

Question

I am on Ubuntu 10.04 and I have ROS Electric installed. I am following these instructions and I am on Step 3 (Generating the URDF): http://wiki.ros.org/nxt_lxf2urdf/Tutorials/Creating%20a%20simple%20robot%20model%20using%20lxf2urdf.py#Renaming_and_Positioning_Links

When I input the command rosrun nxt_lxf2urdf lxf2urdf.py robot.lxf robot.ldr >robot.urdf I get:

[rospack] WARNING: cannot create rospack cache directory: Permission denied
[rospack] WARNING: cannot create rospack cache directory: Permission denied
[rospack] Unable to create temporary cache file /root/.ros/.rospack_cache.cSxwgs: Permission denied

What to do? I am fairly new to Ubuntu and ROS.

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Originally posted by Joelac0193 on ROS Answers with karma: 41 on 2015-04-06

Post score: 2

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Original comments

Comment by gvdhoorn on 2015-04-07:
The error seems to suggest you once ran things as the root user ("[..] file /root/.ros/.."). Can you think of a reason why that would be the case? Your normal user does not have access to that directory, but a typical ROS installation wouldn't need a dir in /root/ either.

Comment by Joelac0193 on 2015-04-07:
Well whenever I do anything in the terminal I always input this command: sudo -i

Comment by Joelac0193 on 2015-04-07:
Nevermind I got it. I input the command sudo -s and it worked. Thanks

Answer 1

Well whenever I do anything in the terminal I always input this command: sudo -i

Why do you use sudo? A normal ROS installation shouldn't need it?

If you need it to access (serial) devices, please see Rosrun as super user.

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Originally posted by gvdhoorn with karma: 86574 on 2015-04-07

This answer was ACCEPTED on the original site

Post score: 0

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Original comments

Comment by gkbot on 2018-02-14:
I have the same issue. I believe the problem is due to having a different partition for /home during installation of ubuntu. sudo gives the right permissions to make any file edits. There should be a work around, but I have not yet figured it out. Any ideas?

Comment by gvdhoorn on 2018-02-14:
Your own user should be able to access its own files. If not, that is a system configuration issue, and should be fixed. That would seem to be something not related to ROS, so I would suggest asking it over at Ask Ubuntu or a similar forum.

Comment by DavidGuitarMetal on 2018-05-08:
You can try rosdep fix-permissions as a workaround, it worked for me