Running move_base with DWA_local_planner

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Hi everyone, I would like to use the navigation stack on a differential drive wheelchair to perform local path planning. Up to now I have odometry from the chair as well as a local cost map coming from sensor data. After some research, I have decided that the 'Dynamic window approach' would be ideal for my application but i cannot seem to get move_base to use DWA_local_planner as its planning algorithm, actual, i cannot get move_base working at all. I run it within a launch file as below:

<launch>
<master auto="start"/>

<node pkg="move_base" type="move_base" respawn="false" name="move_base" output="screen">
<param name="base_local_planner" value="dwa_local_planner/DWAPlannerROS" />
<rosparam file="$(find wheelchair_nav)/launch/costmap_common_params.yaml" command="load" ns="global_costmap" />
<rosparam file="$(find wheelchair_nav)/launch/costmap_common_params.yaml" command="load" ns="local_costmap" />
<rosparam file="$(find wheelchair_nav)/launch/local_costmap_params.yaml" command="load" />
<rosparam file="$(find wheelchair_nav)/launch/global_costmap_params.yaml" command="load" />
<rosparam file="$(find wheelchair_nav)/launch/base_local_planner_params.yaml" command="load" />
</node>

</launch>

But the terminal keeps outputting this error:

process[move_base-2]: started with pid [5257]
terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::lock_error> >'
what():  boost: mutex lock failed in pthread_mutex_lock: Invalid argument
[move_base-2] process has died [pid 5257, exit code -6, cmd /opt/ros/indigo/lib/move_base/move_base __name:=move_base __log:=/home/rocky/.ros/log/fac44b2a-6d80-11e5-8d64-d30c77a21d38/move_base-2.log].
log file: /home/rocky/.ros/log/fac44b2a-6d80-11e5-8d64-d30c77a21d38/move_base-2*.log

I am not sure what is causing this error, could anyone please help? Thanks,

Thibault