Problems with pocketsphinx for speech recognition

edit

Hi,all I install ros-by-exanple-indigo code on my computer.And I prepare to test pocketsphinx for speech recognition.However,Once I run the .launch file there will be a mistake which will kill the program.Steps and mistakes as follow.

run command:

 roslaunch pocketsphinx robocup.launch

terminal display:

   ... logging to /home/aicrobo/.ros/log/cabf42a4-563d-11e5-8ab7-e8b1fc053d0e/roslaunch-ubuntu-5253.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:49975/

SUMMARY
========

PARAMETERS
 * /recognizer/dict: /opt/ros/indigo/s...
 * /recognizer/lm: /opt/ros/indigo/s...
 * /rosdistro: indigo
 * /rosversion: 1.11.13

NODES
  /
    recognizer (pocketsphinx/recognizer.py)

ROS_MASTER_URI=http://localhost:11311

core service [/rosout] found
process[recognizer-1]: started with pid [5271]
the rosdep view is empty: call 'sudo rosdep init' and 'rosdep update'
[INFO] [WallTime: 1441726151.014228] Launch config: gconfaudiosrc
/opt/ros/indigo/lib/pocketsphinx/recognizer.py:68: SyntaxWarning: The publisher should be created with an explicit keyword argument 'queue_size'. Please see http://wiki.ros.org/rospy/Overview/Publishers%20and%20Subscribers for more information.
  self.pub = rospy.Publisher('~output', String)
[INFO] [WallTime: 1441726151.017618] Starting recognizer... 
Traceback (most recent call last):
  File "/opt/ros/indigo/lib/pocketsphinx/recognizer.py", line 177, in <module>
    start = recognizer()
  File "/opt/ros/indigo/lib/pocketsphinx/recognizer.py", line 73, in __init__
    self.start_recognizer()
  File "/opt/ros/indigo/lib/pocketsphinx/recognizer.py", line 80, in start_recognizer
    self.pipeline = gst.parse_launch(self.launch_config)
glib.GError: no element "gconfaudiosrc"
Traceback (most recent call last):
  File "/opt/ros/indigo/lib/python2.7/dist-packages/rospy/core.py", line 399, in signal_shutdown
    h()
  File "/opt/ros/indigo/lib/pocketsphinx/recognizer.py", line 131, in shutdown
    gtk.main_quit()
RuntimeError: called outside of a mainloop
[recognizer-1] process has died [pid 5271, exit code 1, cmd /opt/ros/indigo/lib/pocketsphinx/recognizer.py __name:=recognizer __log:=/home/aicrobo/.ros/log/cabf42a4-563d-11e5-8ab7-e8b1fc053d0e/recognizer-1.log].
log file: /home/aicrobo/.ros/log/cabf42a4-563d-11e5-8ab7-e8b1fc053d0e/recognizer-1*.log
all processes on machine have died, roslaunch will exit
shutting down processing monitor...
... shutting down processing monitor complete
done

Thanks!