Hi Alan, The best forum for ROS debugging questions, including TurtleBot, is answers.ros.org. Please ask questions over there. It's much more easily searched and tagged. Tully PS: It looks like you have a http//: instead of a http:// in your ROS_MASTER_URI On Thu, Sep 13, 2012 at 12:16 PM, Alan Marconett wrote: > Already posted to HBRobotics list.**** > > ** ** > > Hi,**** > > ** ** > > I have the club’s Turtlebot, and I’ve been trying to control it via the > turtlebot_bringup tutorials for a few weeks. I finally got the right > understanding of the ssh commands into the Turtlebot. I’ve verified > ROS_HOSTNAME and ROS_MASTER (first two lines of terminal sign-on are echos > of values) which appears to work. I can “list” and “diagnostics” on my > workstation, but not on the Turtlebot. Also, although I can usually get > dashboard up, it doesn’t “connect” and control anything. **** > > ** ** > > Can anyone suggest anything?**** > > ** ** > > Sure would like a “Turtlebot workshop”! **** > > ** ** > > After I get the Turtlebot working, I’ve got a lot of work planned porting > ROS over to my 6WD Robomagallan ‘bot.**** > > ** ** > > Thanks in advance for any help/comments!**** > > ** ** > > Alan KM6VV**** > > ** ** > > ROS_HOSTNAME 172.16.1.33**** > > ROS_MASTER http://172.16.1.35:11311**** > > alan@alan-desktop:~$ ssh turtlebot@turtlebot-0170 turtlebot@turtlebot-0170's > password:**** > > Linux turtlebot-0170 2.6.32-38-generic #83-Ubuntu SMP Wed Jan 4 11:12:07 > UTC 2012 x86_64 GNU/Linux Ubuntu 10.04.4 LTS**** > > ** ** > > Welcome to Ubuntu!**** > > * Documentation: https://help.ubuntu.com/**** > > ** ** > > 237 packages can be updated.**** > > 168 updates are security updates.**** > > ** ** > > New release 'precise' available.**** > > Run 'do-release-upgrade' to upgrade to it.**** > > ** ** > > Last login: Tue Sep 11 19:13:45 2012 from alan-desktop ROS_MASTER http//: > 172.16.1.35:11311 ROS_IP 172.16.1.35**** > > ROS_HOST_172.16.1.35**** > > turtlebot@turtlebot-0170:~$ roscore**** > > Traceback (most recent call last):**** > > File**** > > > "/opt/ros/electric/stacks/ros_comm/tools/roslaunch/src/roslaunch/__init__.py", > **** > > line 217, in main**** > > uuid = roslaunch.rlutil.get_or_generate_uuid(options.run_id,**** > > options.wait_for_master)**** > > File**** > > > "/opt/ros/electric/stacks/ros_comm/tools/roslaunch/src/roslaunch/rlutil.py", > **** > > line 170, in get_or_generate_uuid**** > > param_server = roslib.scriptutil.get_param_server()**** > > File "/opt/ros/electric/ros/core/roslib/src/roslib/scriptutil.py",**** > > line 150, in get_param_server**** > > return get_master()**** > > File "/opt/ros/electric/ros/core/roslib/src/roslib/scriptutil.py",**** > > line 141, in get_master**** > > raise roslib.exceptions.ROSLibException("invalid master URI: %s"%uri) > **** > > ROSLibException: invalid master URI: http//:172.16.1.35:11311turtlebot@turtlebot-0170:~$ > rostopic list Traceback (most recent call last):**** > > File "/opt/ros/electric/ros/bin/rostopic", line 45, in **** > > rostopic.rostopicmain()**** > > File**** > > "/opt/ros/electric/stacks/ros_comm/tools/rostopic/src/rostopic.py", line > 1700, in rostopicmain**** > > _rostopic_cmd_list(argv)**** > > File**** > > "/opt/ros/electric/stacks/ros_comm/tools/rostopic/src/rostopic.py", line > 1642, in _rostopic_cmd_list**** > > exitval = _rostopic_list(topic, verbose=options.verbose, > subscribers_only=options.subscribers,**** > > publishers_only=options.publishers, group_by_host=options.hostname) or 0** > ** > > File**** > > "/opt/ros/electric/stacks/ros_comm/tools/rostopic/src/rostopic.py", line > 870, in _rostopic_list**** > > master = rosgraph.masterapi.Master('/rostopic')**** > > File**** > > > "/opt/ros/electric/stacks/ros_comm/tools/rosgraph/src/rosgraph/masterapi.py", > **** > > line 94, in __init__**** > > self._reinit(master_uri)**** > > File**** > > > "/opt/ros/electric/stacks/ros_comm/tools/rosgraph/src/rosgraph/masterapi.py", > **** > > line 105, in _reinit**** > > self.handle = xmlrpclib.ServerProxy(self.master_uri)**** > > File "/usr/lib/python2.6/xmlrpclib.py", line 1463, in __init__**** > > raise IOError, "unsupported XML-RPC protocol"**** > > IOError: unsupported XML-RPC protocol**** > > turtlebot@turtlebot-0170:~$ rostopic echo /diagnostics Traceback (most > recent call last):**** > > File "/opt/ros/electric/ros/bin/rostopic", line 45, in **** > > rostopic.rostopicmain()**** > > File**** > > "/opt/ros/electric/stacks/ros_comm/tools/rostopic/src/rostopic.py", line > 1694, in rostopicmain**** > > _rostopic_cmd_echo(argv)**** > > File**** > > "/opt/ros/electric/stacks/ros_comm/tools/rostopic/src/rostopic.py", line > 1039, in _rostopic_cmd_echo**** > > _rostopic_echo(topic, callback_echo, bag_file=options.bag)**** > > File**** > > "/opt/ros/electric/stacks/ros_comm/tools/rostopic/src/rostopic.py", line > 689, in _rostopic_echo**** > > _check_master()**** > > File**** > > "/opt/ros/electric/stacks/ros_comm/tools/rostopic/src/rostopic.py", line > 79, in _check_master**** > > rosgraph.masterapi.Master('/rostopic').getPid()**** > > File**** > > > "/opt/ros/electric/stacks/ros_comm/tools/rosgraph/src/rosgraph/masterapi.py", > **** > > line 94, in __init__**** > > self._reinit(master_uri)**** > > File**** > > > "/opt/ros/electric/stacks/ros_comm/tools/rosgraph/src/rosgraph/masterapi.py", > **** > > line 105, in _reinit**** > > self.handle = xmlrpclib.ServerProxy(self.master_uri)**** > > File "/usr/lib/python2.6/xmlrpclib.py", line 1463, in __init__**** > > raise IOError, "unsupported XML-RPC protocol"**** > > IOError: unsupported XML-RPC protocol**** > > turtlebot@turtlebot-0170:~$**** > > ** ** > > _______________________________________________ > ros-users mailing list > ros-users@code.ros.org > https://code.ros.org/mailman/listinfo/ros-users > > -- Tully Foote tfoote@willowgarage.com (650) 475-2827