Problem with roscore

roscore

asked 2013-04-09 22:22:03 -0500

This post is a wiki. Anyone with karma >75 is welcome to improve it.

Hello. I have problem with roscore. When I try to run roscore I give this error:

Traceback (most recent call last): File "/opt/ros/groovy/lib/python2.7/dist-packages/roslaunch/__init__.py", line 230, in main write_pid_file(options.pid_fn, options.core, options.port) File "/opt/ros/groovy/lib/python2.7/dist-packages/roslaunch/__init__.py", line 106, in write_pid_file with open(pid_fn, "w") as f: IOError: [Errno 13] Permission denied: '/home/user/.ros/roscore-11311.pid'

Does someone know how I can fix it ?

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If you have source /root/catkin_ws/devel/setup.bash in your .bashrc remove it, create the catkin workspace again and check.

prasanna.kumar ( 2013-04-09 22:49:39 -0500 )edit

It still doesn't work. I deleted my existing workspace, source from .bashrc and create new ones still appears this error. Maybe someone else know how fix this problem. I reinstall whole ROS and still nothing. I'm begginer in ROS.

Roboticus ( 2013-04-09 23:16:57 -0500 )edit

Something is setup wrong. You can't write to the .ros directory or that specific file. What do you get for id -a, ls -la .ros?

dornhege ( 2013-04-10 00:53:18 -0500 )edit

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answered 2015-02-12 11:58:15 -0500

Timo
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Hey guys, the problem could be that you ran rosdep update with sudo rights. That leads to permission errors later on.

NOTE : Run rosdep update NOT with sudo.

SOLUTION to fix this run sudo rosdep fix-permissions

and after that rosdep update.

Worked for me.

cheers

Timo

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Perfect it does the trick for me. I was running programs from 'ROS by Example for Hydro - Volume 1'. I was not able to execute $ roslaunch rbx1_bringup fake_turtlebot.launch or $ roslaunch rbx1_bringup fake_pi_robot.launch

I would get 'IOERROR [Error13] ...'. Anyhow it is fixed now. Thanks!

imAsim ( 2015-03-17 20:09:33 -0500 )edit

the rosdep fix-permissions command worked for me!

luc ( 2015-09-08 12:55:20 -0500 )edit

Worked like a charm...

kjerath ( 2015-11-10 13:54:31 -0500 )edit

Awesome ,it worked.. than q @imAsim

Vijay ( 2016-02-16 15:43:16 -0500 )edit

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answered 2013-04-10 04:31:55 -0500

This post is a wiki. Anyone with karma >75 is welcome to improve it.

I had a similar problem running roscore. The problem was that the hidden folder " ~/.ros" required root rights.

To solve it, I deleted the folder with:

sudo su
rm -R ~/.ros/

After that, roscore worked well and a new .ros folder was created automatically.

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If .ros required root rights, something was wrong before. Maybe some sudo call. ROS doesn't set the up as root.

dornhege ( 2013-04-10 07:16:35 -0500 )edit

1

Yes, there was a mistake in the groovy installation documentation, saying to run the command <rosdep update> with sudo. This leads to the error. The documentation is corrected now.

MachR ( 2013-04-10 20:54:42 -0500 )edit

It doesn't work. When I entered the two command lines "rm: cannot remove ‘/root/.ros/’: No such file or directory" showed up. What is the problem?

zurish ( 2015-02-11 13:55:28 -0500 )edit

You are in the home of the root user, not in the home of the user, where you want to remove the .ros directory.

dornhege ( 2015-02-12 03:16:23 -0500 )edit

@dornhege Thanks it's working now.

zurish ( 2015-02-12 09:58:38 -0500 )edit

Worked like charm. But could you please explain what .ros contains? I thought it only stored the logs.

Joy16 ( 2017-04-10 18:59:31 -0500 )edit

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