Mr. Ugo Cupcic suggested that i should run
sudo chmod 777 /dev/rtc
And then i should be able to access the /dev/rtc as normal user.
What he suggested regarding changing permissions worked but i still get segmentation faults.The program stops after the client and the server are initialized.They never start communicating.
the following is the output i get currently:
UINodeRepository::Scan()
Scanning def /usr/lib/flowdesigner/toolbox
done loading def files
loading XML document from memory
done!
Building network :MAIN
ROS node : HARK_MASTER_NODE generated...
node_RosAddHarkIntClient_1 constructor end...
node_RosAddHarkIntClient_1 initialized...
node_RosAddHarkIntServer_1 initialized...
ROS initialized...
Segmentation fault
________________________________
From: Ashwin Kamath <
ashwin24udp@yahoo.com>
To: Ros Mailing list <
ros-users@code.ros.org>
Sent: Wednesday, 8 June 2011 11:29 AM
Subject: Error while running a simple server client program in flowdesigner
i am trying to run the following tutorial:
http://winnie.kuis. kyoto-u.ac.jp/HARK/wiki.cgi? page=HARK-ROS+Tutorial+2
but i get the following error and the program stops abruptly:
[ INFO] [1307457046.525074887]: Connected to master at [localhost:11311]
ROS node : HARK_MASTER_NODE generated...
/dev/rtc: Permission denied
Cannot open /dev/rtc
ioctl: Bad file descriptor
node_RosAddHarkIntClient_1 constructor end...
node_RosAddHarkIntClient_1
initialized...
node_RosAddHarkIntServer_1 initialized...
ROS initialized...
Segmentation fault
since i was having issues with permissions i tried using sudo and ran the file in terminal,but i get the following error;
ROS_ROOT is not set! Using default rosconsole configuration values
UINodeRepository::Scan()
Scanning def /usr/lib/flowdesigner/toolbox
done loading def files
loading XML document from memory
done!
Building network :MAIN
[FATAL] [1307457375.864763327]: ROS_MASTER_URI is not defined in the environment. Either type the following or (preferrably) add this to your ~/.bashrc file in order set up your local machine as a ROS master:
export ROS_MASTER_URI=
http:// localhost:11311
then, type 'roscore'
in another shell to actually launch the master program.
[FATAL] [1307457375.864837707]: BREAKPOINT HIT
file = /tmp/buildd/ros-cturtle-ros-1. 2.6/debian/ros-cturtle-ros/ opt/ros/cturtle/ros/core/ roscpp/src/libros/master.cpp
line=70
Trace/breakpoint trap
i exported the ROS_MASTER_URI variable in the .bashrc file and started roscore in a new terminal.but the result is same.i still get the same error.Can some one please tell me how to resolve this issue.