Hi,

I'm running ros latest on the PR2 (ros core version 9752). I run into the
following error when I try to do a rostopic list:

saip@pr1000:~/ros_sandbox/versioned_latest/ros$ rostopic list
Traceback (most recent call last):
  File "/u/saip/ros_sandbox/versioned_latest/ros/bin/rostopic", line 47, in
<module>
    rostopic.rostopicmain()
  File
"/u/saip/ros_sandbox/versioned_latest/ros/tools/rostopic/src/rostopic.py",
line 1339, in rostopicmain
    _rostopic_cmd_list(argv)
  File
"/u/saip/ros_sandbox/versioned_latest/ros/tools/rostopic/src/rostopic.py",
line 1281, in _rostopic_cmd_list
    exitval = _rostopic_list(topic, verbose=options.verbose,
subscribers_only=options.subscribers, publishers_only=options.publishers) or
0
  File
"/u/saip/ros_sandbox/versioned_latest/ros/tools/rostopic/src/rostopic.py",
line 736, in _rostopic_list
    topic_types = _succeed(master.getTopicTypes('/rostopic'))
  File "/usr/lib/python2.6/xmlrpclib.py", line 1199, in __call__
    return self.__send(self.__name, args)
  File "/usr/lib/python2.6/xmlrpclib.py", line 1489, in __request
    verbose=self.__verbose
  File "/usr/lib/python2.6/xmlrpclib.py", line 1253, in request
    return self._parse_response(h.getfile(), sock)
  File "/usr/lib/python2.6/xmlrpclib.py", line 1392, in _parse_response
    return u.close()
  File "/usr/lib/python2.6/xmlrpclib.py", line 838, in close
    raise Fault(**self._stack[0])
xmlrpclib.Fault: <Fault 1: '<type \'exceptions.Exception\'>:method
"getTopicTypes" is not supported'>

I haven't really looked into what is causing this. Any pointers ?

Thanks,
Sai