ROS-Comm catkin_make error

edit

I was working on entirely a different problem of trying to publish into cmd_vel from move_base and a custom node of mine. Basically, move_base issues twist messages to drive my robot from one pose to another. And, I was attempting to issue another set of twist messages to get my robot to follow a wall to the destination. My intention was to do this by issuing twists with just twist.angular.z = 0.5 values until to robot was a set distance from the wall. So, these two nodes should have been publishing to cmd_vel and moving the robot along.

BUT, what i found was that my node seemed to premept move_base. The robot would not respond to move_base unless I stopped my node.

SO, I decided to experiment with the mux package and I cloned it into my catkin_ws/src directory. However, when I tried launching my launch file, I got the following error:

.
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process[master]: started with pid [7849]
Traceback (most recent call last):
  File "/home/sisko/catkin_ws/devel/bin/rosmaster", line 15, in <module>
    exec(compile(fh.read(), python_script, 'exec'), context)
  File "/home/sisko/catkin_ws/src/ros_comm/tools/rosmaster/scripts/rosmaster", line 35, in <module>
    rosmaster.rosmaster_main()
  File "/home/sisko/catkin_ws/src/ros_comm/tools/rosmaster/src/rosmaster/main.py", line 84, in rosmaster_main
    configure_logging()   
  File "/home/sisko/catkin_ws/src/ros_comm/tools/rosmaster/src/rosmaster/main.py", line 58, in configure_logging
    _log_filename = rosgraph.roslogging.configure_logging('rosmaster', logging.DEBUG, filename=filename)
  File "/home/sisko/catkin_ws/src/ros_comm/tools/rosgraph/src/rosgraph/roslogging.py", line 192, in configure_logging
    logging.config.fileConfig(config_file, disable_existing_loggers=False)
  File "/usr/lib/python2.7/logging/config.py", line 85, in fileConfig
    handlers = _install_handlers(cp, formatters)
  File "/usr/lib/python2.7/logging/config.py", line 163, in _install_handlers
    h = klass(*args)
  File "/home/sisko/catkin_ws/src/ros_comm/tools/rosgraph/src/rosgraph/roslogging.py", line 237, in __init__
    from rospy.rostime import get_time, is_wallclock
  File "/home/sisko/catkin_ws/devel/lib/python2.7/dist-packages/rospy/__init__.py", line 34, in <module>
    exec(__fh.read())
  File "<string>", line 49, in <module>
  File "/home/sisko/catkin_ws/src/ros_comm/clients/rospy/src/rospy/client.py", line 60, in <module>
    import rospy.impl.init
  File "/home/sisko/catkin_ws/src/ros_comm/clients/rospy/src/rospy/impl/init.py", line 54, in <module>
    from .tcpros import init_tcpros
  File "/home/sisko/catkin_ws/src/ros_comm/clients/rospy/src/rospy/impl/tcpros.py", line 45, in <module>
    import rospy.impl.tcpros_service
  File "/home/sisko/catkin_ws/src/ros_comm/clients/rospy/src/rospy/impl/tcpros_service.py", line 54, in <module>
    from rospy.impl.tcpros_base import TCPROSTransport, TCPROSTransportProtocol, \
  File "/home/sisko/catkin_ws/src/ros_comm/clients/rospy/src/rospy/impl/tcpros_base.py", line 160
    (e_errno, msg, *_) = e.args
                   ^
SyntaxError: invalid syntax
================================================================================REQUIRED process [master] has died!
process has died [pid 7849, exit code 1, cmd rosmaster --core -p 11311 -w 3 __log:=/home/sisko/.ros/log/9f569ecc-a37c-11eb-b1b2-70188b82a32f/master.log].
log file: /home/sisko/.ros/log/9f569ecc-a37c-11eb-b1b2-70188b82a32f/master*.log
Initiating shutdown!
================================================================================
[master] killing on exit
RLException: ERROR: could not contact master ...