groove-x/mqtt_bridge

Error in: roslaunch mqtt_bridge demo.launch

Closed this issue · 2 comments

When test mqtt_bridge, it says: ERROR: parameter [/mqtt_bridge] is not set. Please help.

xx@ubuntu:~$ roslaunch mqtt_bridge demo.launch
... logging to /home/xx/.ros/log/17af3876-2b3e-11e8-ba85-08002773ca37/roslaunch-ubuntu-9564.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://ubuntu:34693/

SUMMARY

PARAMETERS

  • /mqtt_bridge/bridge: [{'topic_from': '...
  • /mqtt_bridge/deserializer: msgpack:loads
  • /mqtt_bridge/mqtt/client/protocol: 4
  • /mqtt_bridge/mqtt/connection/host: localhost
  • /mqtt_bridge/mqtt/connection/keepalive: 60
  • /mqtt_bridge/mqtt/connection/port: 1883
  • /mqtt_bridge/mqtt/private_path: device/001
  • /mqtt_bridge/serializer: msgpack:dumps
  • /rosdistro: indigo
  • /rosversion: 1.11.21

NODES
/
mqtt_bridge (mqtt_bridge/mqtt_bridge_node.py)

auto-starting new master
process[master]: started with pid [9575]
ROS_MASTER_URI=http://localhost:11311

setting /run_id to 17af3876-2b3e-11e8-ba85-08002773ca37
process[rosout-1]: started with pid [9588]
started core service [/rosout]
running rosparam delete /mqtt_bridge/
ERROR: parameter [/mqtt_bridge] is not set
process[mqtt_bridge-2]: started with pid [9610]
[Errno 32] Broken pipe
[INFO] [WallTime: 1521440634.096355] MQTT disconnected
[INFO] [WallTime: 1521440635.110383] MQTT disconnected
[INFO] [WallTime: 1521440637.112733] MQTT disconnected
[INFO] [WallTime: 1521440641.116993] MQTT disconnected
[INFO] [WallTime: 1521440649.120404] MQTT disconnected

roslaunch-ubuntu-9564.log

[roslaunch][INFO] 2018-03-19 14:23:52,122: Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
[roslaunch][INFO] 2018-03-19 14:23:52,126: Done checking log file disk usage. Usage is <1GB.
[roslaunch][INFO] 2018-03-19 14:23:52,127: roslaunch starting with args ['/opt/ros/indigo/bin/roslaunch', 'mqtt_bridge', 'demo.launch']
[roslaunch][INFO] 2018-03-19 14:23:52,127: roslaunch env is {'SHELL': '/bin/bash', 'XDG_DATA_DIRS': '/usr/share/ubuntu:/usr/share/gnome:/usr/local/share/:/usr/share/', 'MANDATORY_PATH': '/usr/share/gconf/ubuntu.mandatory.path', 'COMPIZ_CONFIG_PROFILE': 'ubuntu', 'JOB': 'dbus', 'SESSION': 'ubuntu', 'XMODIFIERS': '@im=ibus', 'JAVA_HOME': '/opt/jdk1.8.0_25', 'TURTLEBOT_INTERACTIONS_LIST': '[turtlebot_bringup/admin.interactions, turtlebot_bringup/documentation.interactions, turtlebot_bringup/pairing.interactions, turtlebot_bringup/visualisation.interactions]', 'SELINUX_INIT': 'YES', 'XDG_RUNTIME_DIR': '/run/user/1000', 'PYTHONPATH': '/home/exbot/cartographer_ws/install_isolated/lib/python2.7/dist-packages:/opt/ros/indigo/lib/python2.7/dist-packages', 'COMPIZ_BIN_PATH': '/usr/bin/', 'ROS_ROOT': '/opt/ros/indigo/share/ros', 'XDG_SESSION_ID': 'c2', 'DBUS_SESSION_BUS_ADDRESS': 'unix:abstract=/tmp/dbus-XraJhnKVtZ', 'DEFAULTS_PATH': '/usr/share/gconf/ubuntu.default.path', 'DESKTOP_SESSION': 'ubuntu', 'GTK_MODULES': 'overlay-scrollbar:unity-gtk-module', 'INSTANCE': '', 'TURTLEBOT_3D_SENSOR': 'asus_xtion_pro', 'TURTLEBOT_RAPP_PACKAGE_BLACKLIST': '[]', 'XDG_MENU_PREFIX': 'gnome-', 'LS_COLORS': 'rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:.tar=01;31:.tgz=01;31:.arj=01;31:.taz=01;31:.lzh=01;31:.lzma=01;31:.tlz=01;31:.txz=01;31:.zip=01;31:.z=01;31:.Z=01;31:.dz=01;31:.gz=01;31:.lz=01;31:.xz=01;31:.bz2=01;31:.bz=01;31:.tbz=01;31:.tbz2=01;31:.tz=01;31:.deb=01;31:.rpm=01;31:.jar=01;31:.war=01;31:.ear=01;31:.sar=01;31:.rar=01;31:.ace=01;31:.zoo=01;31:.cpio=01;31:.7z=01;31:.rz=01;31:.jpg=01;35:.jpeg=01;35:.gif=01;35:.bmp=01;35:.pbm=01;35:.pgm=01;35:.ppm=01;35:.tga=01;35:.xbm=01;35:.xpm=01;35:.tif=01;35:.tiff=01;35:.png=01;35:.svg=01;35:.svgz=01;35:.mng=01;35:.pcx=01;35:.mov=01;35:.mpg=01;35:.mpeg=01;35:.m2v=01;35:.mkv=01;35:.webm=01;35:.ogm=01;35:.mp4=01;35:.m4v=01;35:.mp4v=01;35:.vob=01;35:.qt=01;35:.nuv=01;35:.wmv=01;35:.asf=01;35:.rm=01;35:.rmvb=01;35:.flc=01;35:.avi=01;35:.fli=01;35:.flv=01;35:.gl=01;35:.dl=01;35:.xcf=01;35:.xwd=01;35:.yuv=01;35:.cgm=01;35:.emf=01;35:.axv=01;35:.anx=01;35:.ogv=01;35:.ogx=01;35:.aac=00;36:.au=00;36:.flac=00;36:.mid=00;36:.midi=00;36:.mka=00;36:.mp3=00;36:.mpc=00;36:.ogg=00;36:.ra=00;36:.wav=00;36:.axa=00;36:.oga=00;36:.spx=00;36:.xspf=00;36:', 'TURTLEBOT_TYPE': 'turtlebot', 'GNOME_DESKTOP_SESSION_ID': 'this-is-deprecated', 'XDG_CURRENT_DESKTOP': 'Unity', 'CPATH': '/home/exbot/cartographer_ws/install_isolated/include:/opt/ros/indigo/include:/opt/eigen:/opt/eigen', 'USER': 'exbot', 'XDG_VTNR': '7', 'CMAKE_PREFIX_PATH': '/home/exbot/cartographer_ws/install_isolated:/opt/ros/indigo', 'XAUTHORITY': '/home/exbot/.Xauthority', 'LANGUAGE': 'zh_CN:zh', 'SESSION_MANAGER': 'local/ubuntu:@/tmp/.ICE-unix/1866,unix/ubuntu:/tmp/.ICE-unix/1866', 'SHLVL': '1', 'QT_QPA_PLATFORMTHEME': 'appmenu-qt5', 'DISPLAY': ':0', 'CLUTTER_IM_MODULE': 'xim', 'WINDOWID': '65011723', 'ROS_ETC_DIR': '/opt/ros/indigo/etc/ros', 'GPG_AGENT_INFO': '/run/user/1000/keyring-To1Vpb/gpg:0:1', 'LUA_CPATH': ';;/opt/ros/indigo/lib/lua/5.1/?.so;/opt/ros/indigo/lib/lua/5.1/?.so', 'CLASSPATH': '/opt/jdk1.8.0_25/lib', 'GDMSESSION': 'ubuntu', 'PKG_CONFIG_PATH': '/home/exbot/cartographer_ws/install_isolated/lib/pkgconfig:/opt/ros/indigo/lib/pkgconfig:/opt/ros/indigo/lib/i386-linux-gnu/pkgconfig', 'ROS_PACKAGE_PATH': '/home/exbot/cartographer_ws/install_isolated/share:/home/exbot/cartographer_ws/install_isolated/stacks:/opt/ros/indigo/share:/opt/ros/indigo/stacks:/home/exbot/rosbuild_ws:/home/exbot/mqtt_bridge', 'TURTLEBOT_BASE': 'kobuki', '': '/opt/ros/indigo/bin/roslaunch', 'GTK_IM_MODULE': 'ibus', 'XDG_CONFIG_DIRS': '/etc/xdg/xdg-ubuntu:/usr/share/upstart/xdg:/etc/xdg', 'TURTLEBOT_BATTERY': '/sys/class/power_supply/BAT0', 'ROS_MASTER_URI': 'http://localhost:11311', 'COLORTERM': 'gnome-terminal', 'XDG_GREETER_DATA_DIR': '/var/lib/lightdm-data/exbot', 'QT4_IM_MODULE': 'xim', 'XDG_SEAT_PATH': '/org/freedesktop/DisplayManager/Seat0', 'HOME': '/home/exbot', 'LD_LIBRARY_PATH': '/opt/ros/indigo/lib/typelib:/home/exbot/cartographer_ws/install_isolated/lib:/opt/ros/indigo/lib:/opt/ros/indigo/lib/i386-linux-gnu:/opt/ros/indigo/lib/typelib', 'LANG': 'zh_CN.UTF-8', 'ROS_LOG_FILENAME': '/home/exbot/.ros/log/17af3876-2b3e-11e8-ba85-08002773ca37/roslaunch-ubuntu-9564.log', 'TURTLEBOT_SIMULATION': 'false', 'TEXTDOMAIN': 'im-config', 'LUA_PATH': ';;/opt/ros/indigo/share/lua/5.1/?.lua;/opt/ros/indigo/share/lua/5.1/kdl_typekit/?.lua;/opt/ros/indigo/share/lua/5.1/?.lua;/opt/ros/indigo/share/lua/5.1/kdl_typekit/?.lua', 'VTE_VERSION': '3409', 'TURTLEBOT_SERIAL_PORT': '/dev/kobuki', 'LESSOPEN': '| /usr/bin/lesspipe %s', 'TURTLEBOT_NAME': 'turtlebot', 'LESSCLOSE': '/usr/bin/lesspipe %s %s', 'GNOME_KEYRING_PID': '1700', 'TYPELIB_USE_GCCXML': '1', 'RTCTREE_NAMESERVERS': 'localhost:15005', 'ROS_DISTRO': 'indigo', 'RUBYLIB': '/opt/ros/indigo/lib/ruby/1.9.1/i686-linux:/opt/ros/indigo/lib/ruby/1.9.1', 'OROCOS_TARGET': 'gnulinux', 'ROSLISP_PACKAGE_DIRECTORIES': '', 'QT_IM_MODULE': 'ibus', 'LOGNAME': 'exbot', 'XDG_SEAT': 'seat0', 'GNOME_KEYRING_CONTROL': '/run/user/1000/keyring-To1Vpb', 'PATH': '/home/exbot/cartographer_ws/install_isolated/bin:/opt/ros/indigo/bin:/opt/jdk1.8.0_25/bin:/opt/jdk1.8.0_25/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games', 'TERM': 'xterm', 'XDG_SESSION_PATH': '/org/freedesktop/DisplayManager/Session0', 'TURTLEBOT_STACKS': 'hexagons', 'TURTLEBOT_RAPP_PACKAGE_WHITELIST': '[rocon_apps, turtlebot_rapps]', 'RTT_COMPONENT_PATH': '/home/exbot/cartographer_ws/install_isolated/lib/orocos:/opt/ros/indigo/lib/orocos', 'SESSIONTYPE': 'gnome-session', 'IM_CONFIG_PHASE': '1', 'SSH_AUTH_SOCK': '/run/user/1000/keyring-To1Vpb/ssh', 'TEXTDOMAINDIR': '/usr/share/locale/', 'RUBYOPT': '-rubygems', 'UPSTART_SESSION': 'unix:abstract=/com/ubuntu/upstart-session/1000/1702', 'GDM_LANG': 'zh_CN', 'PWD': '/home/exbot'}
[roslaunch][INFO] 2018-03-19 14:23:52,127: starting in server mode
[roslaunch.parent][INFO] 2018-03-19 14:23:52,127: starting roslaunch parent run
[roslaunch][INFO] 2018-03-19 14:23:52,127: loading roscore config file /opt/ros/indigo/etc/ros/roscore.xml
[roslaunch][INFO] 2018-03-19 14:23:52,524: Added core node of type [rosout/rosout] in namespace [/]
[roslaunch.config][INFO] 2018-03-19 14:23:52,524: loading config file /home/exbot/mqtt_bridge/launch/demo.launch
[roslaunch][INFO] 2018-03-19 14:23:52,644: Added node of type [mqtt_bridge/mqtt_bridge_node.py] in namespace [/]
[roslaunch][INFO] 2018-03-19 14:23:52,644: ... selected machine [] for node of type [mqtt_bridge/mqtt_bridge_node.py]
[roslaunch.pmon][INFO] 2018-03-19 14:23:52,645: start_process_monitor: creating ProcessMonitor
[roslaunch.pmon][INFO] 2018-03-19 14:23:52,645: created process monitor <ProcessMonitor(ProcessMonitor-1, initial daemon)>
[roslaunch.pmon][INFO] 2018-03-19 14:23:52,645: start_process_monitor: ProcessMonitor started
[roslaunch.parent][INFO] 2018-03-19 14:23:52,645: starting parent XML-RPC server
[roslaunch.server][INFO] 2018-03-19 14:23:52,645: starting roslaunch XML-RPC server
[roslaunch.server][INFO] 2018-03-19 14:23:52,646: waiting for roslaunch XML-RPC server to initialize
[xmlrpc][INFO] 2018-03-19 14:23:52,646: XML-RPC server binding to 0.0.0.0:0
[xmlrpc][INFO] 2018-03-19 14:23:52,646: Started XML-RPC server [http://ubuntu:34693/]
[xmlrpc][INFO] 2018-03-19 14:23:52,646: xml rpc node: starting XML-RPC server
[roslaunch][INFO] 2018-03-19 14:23:52,657: started roslaunch server http://ubuntu:34693/
[roslaunch.parent][INFO] 2018-03-19 14:23:52,658: ... parent XML-RPC server started
[roslaunch][INFO] 2018-03-19 14:23:52,659: master.is_running[http://localhost:11311]
[roslaunch][INFO] 2018-03-19 14:23:52,659: auto-starting new master
[roslaunch][INFO] 2018-03-19 14:23:52,660: create_master_process: rosmaster, /opt/ros/indigo/share/ros, 11311, 3, None
[roslaunch][INFO] 2018-03-19 14:23:52,660: process[master]: launching with args [['rosmaster', '--core', '-p', '11311', '-w', '3']]
[roslaunch.pmon][INFO] 2018-03-19 14:23:52,660: ProcessMonitor.register[master]
[roslaunch.pmon][INFO] 2018-03-19 14:23:52,660: ProcessMonitor.register[master] complete
[roslaunch][INFO] 2018-03-19 14:23:52,660: process[master]: starting os process
[roslaunch][INFO] 2018-03-19 14:23:52,660: process[master]: start w/ args [['rosmaster', '--core', '-p', '11311', '-w', '3', '__log:=/home/exbot/.ros/log/17af3876-2b3e-11e8-ba85-08002773ca37/master.log']]
[roslaunch][INFO] 2018-03-19 14:23:52,660: process[master]: cwd will be [/home/exbot/.ros]
[roslaunch][INFO] 2018-03-19 14:23:52,668: process[master]: started with pid [9575]
[roslaunch][INFO] 2018-03-19 14:23:52,671: master.is_running[http://localhost:11311]
[roslaunch][INFO] 2018-03-19 14:23:52,771: master.is_running[http://localhost:11311]
[roslaunch][INFO] 2018-03-19 14:23:52,872: master.is_running[http://localhost:11311]
[roslaunch][INFO] 2018-03-19 14:23:52,973: master.is_running[http://localhost:11311]
[roslaunch][INFO] 2018-03-19 14:23:53,075: master.is_running[http://localhost:11311]
[roslaunch][INFO] 2018-03-19 14:23:53,077: master.is_running[http://localhost:11311]
[roslaunch][INFO] 2018-03-19 14:23:53,079: ROS_MASTER_URI=http://localhost:11311
[roslaunch][INFO] 2018-03-19 14:23:53,080: setting /run_id to 17af3876-2b3e-11e8-ba85-08002773ca37
[roslaunch][INFO] 2018-03-19 14:23:53,081: setting /roslaunch/uris/host_ubuntu__34693' to http://ubuntu:34693/
[roslaunch][INFO] 2018-03-19 14:23:53,085: ... preparing to launch node of type [rosout/rosout]
[roslaunch][INFO] 2018-03-19 14:23:53,085: create_node_process: package[rosout] type[rosout] machine[Machine(name[] env_loader[None] address[localhost] ssh_port[22] user[None] assignable[True] timeout[10.0])] master_uri[http://localhost:11311]
[roslaunch][INFO] 2018-03-19 14:23:53,085: process[rosout-1]: env[{'SHELL': '/bin/bash', 'XDG_DATA_DIRS': '/usr/share/ubuntu:/usr/share/gnome:/usr/local/share/:/usr/share/', 'MANDATORY_PATH': '/usr/share/gconf/ubuntu.mandatory.path', 'CLUTTER_IM_MODULE': 'xim', 'JOB': 'dbus', 'SESSION': 'ubuntu', 'XMODIFIERS': '@im=ibus', 'JAVA_HOME': '/opt/jdk1.8.0_25', 'TURTLEBOT_INTERACTIONS_LIST': '[turtlebot_bringup/admin.interactions, turtlebot_bringup/documentation.interactions, turtlebot_bringup/pairing.interactions, turtlebot_bringup/visualisation.interactions]', 'SELINUX_INIT': 'YES', 'XDG_RUNTIME_DIR': '/run/user/1000', 'PYTHONPATH': '/home/exbot/cartographer_ws/install_isolated/lib/python2.7/dist-packages:/opt/ros/indigo/lib/python2.7/dist-packages', 'COMPIZ_BIN_PATH': '/usr/bin/', 'ROS_ROOT': '/opt/ros/indigo/share/ros', 'XDG_SESSION_ID': 'c2', 'DBUS_SESSION_BUS_ADDRESS': 'unix:abstract=/tmp/dbus-XraJhnKVtZ', 'DEFAULTS_PATH': '/usr/share/gconf/ubuntu.default.path', 'DESKTOP_SESSION': 'ubuntu', 'GTK_MODULES': 'overlay-scrollbar:unity-gtk-module', 'INSTANCE': '', 'TURTLEBOT_3D_SENSOR': 'asus_xtion_pro', 'TURTLEBOT_RAPP_PACKAGE_BLACKLIST': '[]', 'XDG_MENU_PREFIX': 'gnome-', 'LS_COLORS': 'rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:.tar=01;31:.tgz=01;31:.arj=01;31:.taz=01;31:.lzh=01;31:.lzma=01;31:.tlz=01;31:.txz=01;31:.zip=01;31:.z=01;31:.Z=01;31:.dz=01;31:.gz=01;31:.lz=01;31:.xz=01;31:.bz2=01;31:.bz=01;31:.tbz=01;31:.tbz2=01;31:.tz=01;31:.deb=01;31:.rpm=01;31:.jar=01;31:.war=01;31:.ear=01;31:.sar=01;31:.rar=01;31:.ace=01;31:.zoo=01;31:.cpio=01;31:.7z=01;31:.rz=01;31:.jpg=01;35:.jpeg=01;35:.gif=01;35:.bmp=01;35:.pbm=01;35:.pgm=01;35:.ppm=01;35:.tga=01;35:.xbm=01;35:.xpm=01;35:.tif=01;35:.tiff=01;35:.png=01;35:.svg=01;35:.svgz=01;35:.mng=01;35:.pcx=01;35:.mov=01;35:.mpg=01;35:.mpeg=01;35:.m2v=01;35:.mkv=01;35:.webm=01;35:.ogm=01;35:.mp4=01;35:.m4v=01;35:.mp4v=01;35:.vob=01;35:.qt=01;35:.nuv=01;35:.wmv=01;35:.asf=01;35:.rm=01;35:.rmvb=01;35:.flc=01;35:.avi=01;35:.fli=01;35:.flv=01;35:.gl=01;35:.dl=01;35:.xcf=01;35:.xwd=01;35:.yuv=01;35:.cgm=01;35:.emf=01;35:.axv=01;35:.anx=01;35:.ogv=01;35:.ogx=01;35:.aac=00;36:.au=00;36:.flac=00;36:.mid=00;36:.midi=00;36:.mka=00;36:.mp3=00;36:.mpc=00;36:.ogg=00;36:.ra=00;36:.wav=00;36:.axa=00;36:.oga=00;36:.spx=00;36:.xspf=00;36:', 'TURTLEBOT_TYPE': 'turtlebot', 'GNOME_DESKTOP_SESSION_ID': 'this-is-deprecated', 'LESSOPEN': '| /usr/bin/lesspipe %s', 'CPATH': '/home/exbot/cartographer_ws/install_isolated/include:/opt/ros/indigo/include:/opt/eigen:/opt/eigen', 'USER': 'exbot', 'XDG_VTNR': '7', 'CMAKE_PREFIX_PATH': '/home/exbot/cartographer_ws/install_isolated:/opt/ros/indigo', 'XAUTHORITY': '/home/exbot/.Xauthority', 'LANGUAGE': 'zh_CN:zh', 'SESSION_MANAGER': 'local/ubuntu:@/tmp/.ICE-unix/1866,unix/ubuntu:/tmp/.ICE-unix/1866', 'SHLVL': '1', 'QT_QPA_PLATFORMTHEME': 'appmenu-qt5', 'DISPLAY': ':0', 'COMPIZ_CONFIG_PROFILE': 'ubuntu', 'WINDOWID': '65011723', 'ROS_ETC_DIR': '/opt/ros/indigo/etc/ros', 'GPG_AGENT_INFO': '/run/user/1000/keyring-To1Vpb/gpg:0:1', 'LUA_CPATH': ';;/opt/ros/indigo/lib/lua/5.1/?.so;/opt/ros/indigo/lib/lua/5.1/?.so', 'CLASSPATH': '/opt/jdk1.8.0_25/lib', 'GDMSESSION': 'ubuntu', 'PKG_CONFIG_PATH': '/home/exbot/cartographer_ws/install_isolated/lib/pkgconfig:/opt/ros/indigo/lib/pkgconfig:/opt/ros/indigo/lib/i386-linux-gnu/pkgconfig', 'ROS_PACKAGE_PATH': '/home/exbot/cartographer_ws/install_isolated/share:/home/exbot/cartographer_ws/install_isolated/stacks:/opt/ros/indigo/share:/opt/ros/indigo/stacks:/home/exbot/rosbuild_ws:/home/exbot/mqtt_bridge', 'TURTLEBOT_BASE': 'kobuki', '
': '/opt/ros/indigo/bin/roslaunch', 'GTK_IM_MODULE': 'ibus', 'XDG_CONFIG_DIRS': '/etc/xdg/xdg-ubuntu:/usr/share/upstart/xdg:/etc/xdg', 'TURTLEBOT_BATTERY': '/sys/class/power_supply/BAT0', 'ROS_MASTER_URI': 'http://localhost:11311', 'COLORTERM': 'gnome-terminal', 'XDG_GREETER_DATA_DIR': '/var/lib/lightdm-data/exbot', 'QT4_IM_MODULE': 'xim', 'XDG_SEAT_PATH': '/org/freedesktop/DisplayManager/Seat0', 'HOME': '/home/exbot', 'LD_LIBRARY_PATH': '/opt/ros/indigo/lib/typelib:/home/exbot/cartographer_ws/install_isolated/lib:/opt/ros/indigo/lib:/opt/ros/indigo/lib/i386-linux-gnu:/opt/ros/indigo/lib/typelib', 'LANG': 'zh_CN.UTF-8', 'ROS_LOG_FILENAME': '/home/exbot/.ros/log/17af3876-2b3e-11e8-ba85-08002773ca37/roslaunch-ubuntu-9564.log', 'TURTLEBOT_SIMULATION': 'false', 'TEXTDOMAIN': 'im-config', 'LUA_PATH': ';;/opt/ros/indigo/share/lua/5.1/?.lua;/opt/ros/indigo/share/lua/5.1/kdl_typekit/?.lua;/opt/ros/indigo/share/lua/5.1/?.lua;/opt/ros/indigo/share/lua/5.1/kdl_typekit/?.lua', 'VTE_VERSION': '3409', 'TURTLEBOT_SERIAL_PORT': '/dev/kobuki', 'XDG_CURRENT_DESKTOP': 'Unity', 'TURTLEBOT_NAME': 'turtlebot', 'LESSCLOSE': '/usr/bin/lesspipe %s %s', 'GNOME_KEYRING_PID': '1700', 'TYPELIB_USE_GCCXML': '1', 'RTCTREE_NAMESERVERS': 'localhost:15005', 'ROS_DISTRO': 'indigo', 'RUBYLIB': '/opt/ros/indigo/lib/ruby/1.9.1/i686-linux:/opt/ros/indigo/lib/ruby/1.9.1', 'OROCOS_TARGET': 'gnulinux', 'ROSLISP_PACKAGE_DIRECTORIES': '', 'QT_IM_MODULE': 'ibus', 'LOGNAME': 'exbot', 'XDG_SEAT': 'seat0', 'PATH': '/home/exbot/cartographer_ws/install_isolated/bin:/opt/ros/indigo/bin:/opt/jdk1.8.0_25/bin:/opt/jdk1.8.0_25/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games', 'GNOME_KEYRING_CONTROL': '/run/user/1000/keyring-To1Vpb', 'TERM': 'xterm', 'XDG_SESSION_PATH': '/org/freedesktop/DisplayManager/Session0', 'TURTLEBOT_STACKS': 'hexagons', 'TURTLEBOT_RAPP_PACKAGE_WHITELIST': '[rocon_apps, turtlebot_rapps]', 'RTT_COMPONENT_PATH': '/home/exbot/cartographer_ws/install_isolated/lib/orocos:/opt/ros/indigo/lib/orocos', 'SESSIONTYPE': 'gnome-session', 'IM_CONFIG_PHASE': '1', 'SSH_AUTH_SOCK': '/run/user/1000/keyring-To1Vpb/ssh', 'TEXTDOMAINDIR': '/usr/share/locale/', 'RUBYOPT': '-rubygems', 'UPSTART_SESSION': 'unix:abstract=/com/ubuntu/upstart-session/1000/1702', 'GDM_LANG': 'zh_CN', 'PWD': '/home/exbot'}]
[roslaunch][INFO] 2018-03-19 14:23:53,298: process[rosout-1]: args[[u'/opt/ros/indigo/lib/rosout/rosout', u'__name:=rosout']]
[roslaunch][INFO] 2018-03-19 14:23:53,298: ... created process [rosout-1]
[roslaunch.pmon][INFO] 2018-03-19 14:23:53,298: ProcessMonitor.register[rosout-1]
[roslaunch.pmon][INFO] 2018-03-19 14:23:53,298: ProcessMonitor.register[rosout-1] complete
[roslaunch][INFO] 2018-03-19 14:23:53,298: ... registered process [rosout-1]
[roslaunch][INFO] 2018-03-19 14:23:53,299: process[rosout-1]: starting os process
[roslaunch][INFO] 2018-03-19 14:23:53,299: process[rosout-1]: start w/ args [[u'/opt/ros/indigo/lib/rosout/rosout', u'__name:=rosout', u'__log:=/home/exbot/.ros/log/17af3876-2b3e-11e8-ba85-08002773ca37/rosout-1.log']]
[roslaunch][INFO] 2018-03-19 14:23:53,299: process[rosout-1]: cwd will be [/home/exbot/.ros]
[roslaunch][INFO] 2018-03-19 14:23:53,306: process[rosout-1]: started with pid [9588]
[roslaunch][INFO] 2018-03-19 14:23:53,307: ... successfully launched [rosout-1]
[roslaunch][INFO] 2018-03-19 14:23:53,535: load_parameters starting ...
[roslaunch][INFO] 2018-03-19 14:23:53,548: ... load_parameters complete
[roslaunch][INFO] 2018-03-19 14:23:53,549: launch_nodes: launching local nodes ...
[roslaunch][INFO] 2018-03-19 14:23:53,549: ... preparing to launch node of type [mqtt_bridge/mqtt_bridge_node.py]
[roslaunch][INFO] 2018-03-19 14:23:53,549: create_node_process: package[mqtt_bridge] type[mqtt_bridge_node.py] machine[Machine(name[] env_loader[None] address[localhost] ssh_port[22] user[None] assignable[True] timeout[10.0])] master_uri[http://localhost:11311]
[roslaunch][INFO] 2018-03-19 14:23:53,549: process[mqtt_bridge-2]: env[{'SHELL': '/bin/bash', 'XDG_DATA_DIRS': '/usr/share/ubuntu:/usr/share/gnome:/usr/local/share/:/usr/share/', 'MANDATORY_PATH': '/usr/share/gconf/ubuntu.mandatory.path', 'CLUTTER_IM_MODULE': 'xim', 'JOB': 'dbus', 'SESSION': 'ubuntu', 'XMODIFIERS': '@im=ibus', 'JAVA_HOME': '/opt/jdk1.8.0_25', 'TURTLEBOT_INTERACTIONS_LIST': '[turtlebot_bringup/admin.interactions, turtlebot_bringup/documentation.interactions, turtlebot_bringup/pairing.interactions, turtlebot_bringup/visualisation.interactions]', 'SELINUX_INIT': 'YES', 'XDG_RUNTIME_DIR': '/run/user/1000', 'PYTHONPATH': '/home/exbot/cartographer_ws/install_isolated/lib/python2.7/dist-packages:/opt/ros/indigo/lib/python2.7/dist-packages', 'COMPIZ_BIN_PATH': '/usr/bin/', 'ROS_ROOT': '/opt/ros/indigo/share/ros', 'XDG_SESSION_ID': 'c2', 'DBUS_SESSION_BUS_ADDRESS': 'unix:abstract=/tmp/dbus-XraJhnKVtZ', 'DEFAULTS_PATH': '/usr/share/gconf/ubuntu.default.path', 'DESKTOP_SESSION': 'ubuntu', 'GTK_MODULES': 'overlay-scrollbar:unity-gtk-module', 'INSTANCE': '', 'TURTLEBOT_3D_SENSOR': 'asus_xtion_pro', 'TURTLEBOT_RAPP_PACKAGE_BLACKLIST': '[]', 'XDG_MENU_PREFIX': 'gnome-', 'LS_COLORS': 'rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:.tar=01;31:.tgz=01;31:.arj=01;31:.taz=01;31:.lzh=01;31:.lzma=01;31:.tlz=01;31:.txz=01;31:.zip=01;31:.z=01;31:.Z=01;31:.dz=01;31:.gz=01;31:.lz=01;31:.xz=01;31:.bz2=01;31:.bz=01;31:.tbz=01;31:.tbz2=01;31:.tz=01;31:.deb=01;31:.rpm=01;31:.jar=01;31:.war=01;31:.ear=01;31:.sar=01;31:.rar=01;31:.ace=01;31:.zoo=01;31:.cpio=01;31:.7z=01;31:.rz=01;31:.jpg=01;35:.jpeg=01;35:.gif=01;35:.bmp=01;35:.pbm=01;35:.pgm=01;35:.ppm=01;35:.tga=01;35:.xbm=01;35:.xpm=01;35:.tif=01;35:.tiff=01;35:.png=01;35:.svg=01;35:.svgz=01;35:.mng=01;35:.pcx=01;35:.mov=01;35:.mpg=01;35:.mpeg=01;35:.m2v=01;35:.mkv=01;35:.webm=01;35:.ogm=01;35:.mp4=01;35:.m4v=01;35:.mp4v=01;35:.vob=01;35:.qt=01;35:.nuv=01;35:.wmv=01;35:.asf=01;35:.rm=01;35:.rmvb=01;35:.flc=01;35:.avi=01;35:.fli=01;35:.flv=01;35:.gl=01;35:.dl=01;35:.xcf=01;35:.xwd=01;35:.yuv=01;35:.cgm=01;35:.emf=01;35:.axv=01;35:.anx=01;35:.ogv=01;35:.ogx=01;35:.aac=00;36:.au=00;36:.flac=00;36:.mid=00;36:.midi=00;36:.mka=00;36:.mp3=00;36:.mpc=00;36:.ogg=00;36:.ra=00;36:.wav=00;36:.axa=00;36:.oga=00;36:.spx=00;36:.xspf=00;36:', 'TURTLEBOT_TYPE': 'turtlebot', 'GNOME_DESKTOP_SESSION_ID': 'this-is-deprecated', 'LESSOPEN': '| /usr/bin/lesspipe %s', 'CPATH': '/home/exbot/cartographer_ws/install_isolated/include:/opt/ros/indigo/include:/opt/eigen:/opt/eigen', 'USER': 'exbot', 'XDG_VTNR': '7', 'CMAKE_PREFIX_PATH': '/home/exbot/cartographer_ws/install_isolated:/opt/ros/indigo', 'XAUTHORITY': '/home/exbot/.Xauthority', 'LANGUAGE': 'zh_CN:zh', 'SESSION_MANAGER': 'local/ubuntu:@/tmp/.ICE-unix/1866,unix/ubuntu:/tmp/.ICE-unix/1866', 'SHLVL': '1', 'QT_QPA_PLATFORMTHEME': 'appmenu-qt5', 'DISPLAY': ':0', 'COMPIZ_CONFIG_PROFILE': 'ubuntu', 'WINDOWID': '65011723', 'ROS_ETC_DIR': '/opt/ros/indigo/etc/ros', 'GPG_AGENT_INFO': '/run/user/1000/keyring-To1Vpb/gpg:0:1', 'LUA_CPATH': ';;/opt/ros/indigo/lib/lua/5.1/?.so;/opt/ros/indigo/lib/lua/5.1/?.so', 'CLASSPATH': '/opt/jdk1.8.0_25/lib', 'GDMSESSION': 'ubuntu', 'PKG_CONFIG_PATH': '/home/exbot/cartographer_ws/install_isolated/lib/pkgconfig:/opt/ros/indigo/lib/pkgconfig:/opt/ros/indigo/lib/i386-linux-gnu/pkgconfig', 'ROS_PACKAGE_PATH': '/home/exbot/cartographer_ws/install_isolated/share:/home/exbot/cartographer_ws/install_isolated/stacks:/opt/ros/indigo/share:/opt/ros/indigo/stacks:/home/exbot/rosbuild_ws:/home/exbot/mqtt_bridge', 'TURTLEBOT_BASE': 'kobuki', '_': '/opt/ros/indigo/bin/roslaunch', 'GTK_IM_MODULE': 'ibus', 'XDG_CONFIG_DIRS': '/etc/xdg/xdg-ubuntu:/usr/share/upstart/xdg:/etc/xdg', 'TURTLEBOT_BATTERY': '/sys/class/power_supply/BAT0', 'ROS_MASTER_URI': 'http://localhost:11311', 'COLORTERM': 'gnome-terminal', 'XDG_GREETER_DATA_DIR': '/var/lib/lightdm-data/exbot', 'QT4_IM_MODULE': 'xim', 'XDG_SEAT_PATH': '/org/freedesktop/DisplayManager/Seat0', 'HOME': '/home/exbot', 'LD_LIBRARY_PATH': '/opt/ros/indigo/lib/typelib:/home/exbot/cartographer_ws/install_isolated/lib:/opt/ros/indigo/lib:/opt/ros/indigo/lib/i386-linux-gnu:/opt/ros/indigo/lib/typelib', 'LANG': 'zh_CN.UTF-8', 'ROS_LOG_FILENAME': '/home/exbot/.ros/log/17af3876-2b3e-11e8-ba85-08002773ca37/roslaunch-ubuntu-9564.log', 'TURTLEBOT_SIMULATION': 'false', 'TEXTDOMAIN': 'im-config', 'LUA_PATH': ';;/opt/ros/indigo/share/lua/5.1/?.lua;/opt/ros/indigo/share/lua/5.1/kdl_typekit/?.lua;/opt/ros/indigo/share/lua/5.1/?.lua;/opt/ros/indigo/share/lua/5.1/kdl_typekit/?.lua', 'VTE_VERSION': '3409', 'TURTLEBOT_SERIAL_PORT': '/dev/kobuki', 'XDG_CURRENT_DESKTOP': 'Unity', 'TURTLEBOT_NAME': 'turtlebot', 'LESSCLOSE': '/usr/bin/lesspipe %s %s', 'GNOME_KEYRING_PID': '1700', 'TYPELIB_USE_GCCXML': '1', 'RTCTREE_NAMESERVERS': 'localhost:15005', 'ROS_DISTRO': 'indigo', 'RUBYLIB': '/opt/ros/indigo/lib/ruby/1.9.1/i686-linux:/opt/ros/indigo/lib/ruby/1.9.1', 'OROCOS_TARGET': 'gnulinux', 'ROSLISP_PACKAGE_DIRECTORIES': '', 'QT_IM_MODULE': 'ibus', 'LOGNAME': 'exbot', 'XDG_SEAT': 'seat0', 'PATH': '/home/exbot/cartographer_ws/install_isolated/bin:/opt/ros/indigo/bin:/opt/jdk1.8.0_25/bin:/opt/jdk1.8.0_25/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games', 'GNOME_KEYRING_CONTROL': '/run/user/1000/keyring-To1Vpb', 'TERM': 'xterm', 'XDG_SESSION_PATH': '/org/freedesktop/DisplayManager/Session0', 'TURTLEBOT_STACKS': 'hexagons', 'TURTLEBOT_RAPP_PACKAGE_WHITELIST': '[rocon_apps, turtlebot_rapps]', 'RTT_COMPONENT_PATH': '/home/exbot/cartographer_ws/install_isolated/lib/orocos:/opt/ros/indigo/lib/orocos', 'SESSIONTYPE': 'gnome-session', 'IM_CONFIG_PHASE': '1', 'SSH_AUTH_SOCK': '/run/user/1000/keyring-To1Vpb/ssh', 'TEXTDOMAINDIR': '/usr/share/locale/', 'RUBYOPT': '-rubygems', 'UPSTART_SESSION': 'unix:abstract=/com/ubuntu/upstart-session/1000/1702', 'GDM_LANG': 'zh_CN', 'PWD': '/home/exbot'}]
[roslaunch][INFO] 2018-03-19 14:23:53,558: process[mqtt_bridge-2]: args[[u'/home/exbot/mqtt_bridge/scripts/mqtt_bridge_node.py', u'__name:=mqtt_bridge']]
[roslaunch][INFO] 2018-03-19 14:23:53,558: ... created process [mqtt_bridge-2]
[roslaunch.pmon][INFO] 2018-03-19 14:23:53,559: ProcessMonitor.register[mqtt_bridge-2]
[roslaunch.pmon][INFO] 2018-03-19 14:23:53,559: ProcessMonitor.register[mqtt_bridge-2] complete
[roslaunch][INFO] 2018-03-19 14:23:53,559: ... registered process [mqtt_bridge-2]
[roslaunch][INFO] 2018-03-19 14:23:53,559: process[mqtt_bridge-2]: starting os process
[roslaunch][INFO] 2018-03-19 14:23:53,559: process[mqtt_bridge-2]: start w/ args [[u'/home/exbot/mqtt_bridge/scripts/mqtt_bridge_node.py', u'__name:=mqtt_bridge', u'__log:=/home/exbot/.ros/log/17af3876-2b3e-11e8-ba85-08002773ca37/mqtt_bridge-2.log']]
[roslaunch][INFO] 2018-03-19 14:23:53,559: process[mqtt_bridge-2]: cwd will be [/home/exbot/.ros]
[roslaunch][INFO] 2018-03-19 14:23:53,578: process[mqtt_bridge-2]: started with pid [9610]
[roslaunch][INFO] 2018-03-19 14:23:53,578: ... successfully launched [mqtt_bridge-2]
[roslaunch][INFO] 2018-03-19 14:23:53,579: ... launch_nodes complete
[roslaunch.pmon][INFO] 2018-03-19 14:23:53,579: registrations completed <ProcessMonitor(ProcessMonitor-1, started daemon -1233806528)>
[roslaunch.parent][INFO] 2018-03-19 14:23:53,579: ... roslaunch parent running, waiting for process exit
[roslaunch][INFO] 2018-03-19 14:23:53,579: spin

For the "parameter not set" issue, I was able to resolve this by editing the demo.launch file. There is a line "" - I think this was deleting the bridge parameter, which was causing that error. I removed the line and the demo worked.