Empty parameter in remote launch

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I am launching my configuration in my robot from my desktop computer.

Everything work fine except loading an urdf file into a parameter. This is my launch file:

<launch>

  <machine name="auriga" address="192.168.1.103" user="auriga" default="true"/>
  <machine name="local"  address="localhost" />

  <param name="robot_description" textfile="$(find auriga_model)/auriga_robot_box.urdf" />
  <param name="wii/axis_linear"   value="1"    type="int"/>
  <param name="wii/axis_angular"  value="0"    type="int"/>
  <param name="wii/scale_linear"  value="0.1"  type="double"/>
  <param name="wii/scale_angular" value="-0.1" type="double"/>
  <param name="wii/min_angular"   value="0.1"  type="double"/>
  <param name="wii/min_linear"    value="0.1"  type="double"/>

  <node  name="laser_hokuyo"          pkg="hokuyo_node" type="hokuyo_node" machine="auriga" respawn="false" output="screen">
    <param name="calibrate_time"      type="bool"       value="false" />            <!-- Starts up faster, but timestamps will be inaccurate. -->
    <param name="port"                type="string"     value="/dev/ttyACM0" />     <!-- Set the port to connect to here -->
    <param name="intensity"           type="bool"       value="false" />
    <param name="min_ang"             type="double"     value="-2.08621" />
    <param name="max_ang"             type="double"     value="+2.08621" />
  </node>

  <node  name="wii_mote_server"       pkg="wiimote"               type="wiimote_node.py"            machine="auriga" respawn="true" output="screen"/>
  <node  name="auriga_robot_base"     pkg="auriga_base"           type="auriga_base_node"           machine="auriga" />
  <node  name="laser_broadcaster"     pkg="tf"                    type="static_transform_publisher" machine="auriga" args="0 0 0.73 0 0 0 base_link laser 50" />
  <node  name="robot_state_publisher" pkg="robot_state_publisher" type="state_publisher"            machine="auriga" />
  <node  name="wii_controller"        pkg="auriga_teleop"         type="teleop_wii_node"            machine="auriga" />

  <node  name="visualization"         pkg="rviz"                  type="rviz"                       machine="local"  />

</launch>

The "auriga_robot_box.urdf" file exists in both computers in the same location but when I launch the system, the process "state_publisher" dies because the "robot_description" parameter is empty.

This configuration works fine when I run it all on a local machine. What am I doing wrong?