ROS Fuerte, Gazebo, DAE file

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I was using my dae files to import into my gazebo. In ROS electric it was working wonderful, but now that I'm working in Fuerte, it's not working anymore.

My configuration is as follows. I added to my manifest.xml file the following lines.

 <depend package="gazebo"/>
 <export>
   <gazebo gazebo_media_path="${prefix}" />
 </export>

Then I'm using the following file for my model.

File: pkg/objects/something.model

<?xml version="1.0" ?>
<model:physical name="something">
  <xyz>   0      0      0</xyz>
  <rpy>   0.0    0.0    0.0</rpy>
  <static>false</static>
  <body:trimesh name="something_body">
    <massMatrix>true</massMatrix> 
    <mass>1</mass>
    <ixx>0.00</ixx>
    <ixy>0.0</ixy>
    <ixz>0.0</ixz>
    <iyy>0.001</iyy>
    <iyz>0.0</iyz>
    <izz>0.00</izz>
    <cx>0.0</cx>
    <cy>0.0</cy>
    <cz>0.1</cz>
    <geom:trimesh name="something_geom">
      <xyz>0 0 0</xyz>
      <laserRetro>2000.0</laserRetro>
      <kp>1000000.0</kp>
      <kd>1.0</kd>
      <scale>1 1 1</scale>
      <mesh>something.dae</mesh>
      <centerMesh>aabb_bottom</centerMesh>
      <genTexCoord>true</genTexCoord>
      <visual>
        <xyz>0 0 0.0</xyz>
        <scale>1 1 1</scale>
        <material>GazeboWorlds/RGBNoise</material>
        <mesh>something.dae</mesh>
      </visual>
    </geom:trimesh>
  </body:trimesh>
</model:physical>

My dae file is in this path pkg/Media/models/something.dae.

I'm also using a launch file.

<launch>
  <!-- send urdf to param server -->
  <param name="something" textfile="$(find environments)/objects/something.model" />
  <!-- push urdf to factory and spawn robot in gazebo -->
  <node name="spawn_cube" pkg="gazebo" type="spawn_model" args="-gazebo -param something  -R 0 -P 0 -Y 0 -x -2 -model something" respawn="false" output="screen" />
</launch>

And when I don't, I just load it like this:

rosrun gazebo spawn_model -file objects/something.model -gazebo -model test -z 2

Whenever I run the launch file, this is happens.

ROS_MASTER_URI=http://localhost:11311

core service [/rosout] found
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[spawn_cube-1]: started with pid [17302]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[spawn_cube2-2]: started with pid [17303]
loading model xml from ros parameter
[INFO] [WallTime: 1363095682.076636] [0.000000] waiting for service /gazebo/spawn_gazebo_model
spawn status:  SpawnModel: successfully spawned model
loading model xml from ros parameter
[INFO] [WallTime: 1363095682.142966] [0.000000] waiting for service /gazebo/spawn_gazebo_model
spawn status:  SpawnModel: successfully spawned model
[spawn_cube-1] process has finished cleanly
log file: /home/user/.ros/log/8d573604-8b17-11e2-9cb0-0025904ea321/spawn_cube-1*.log
[spawn_cube2-2] process has finished cleanly
log file: /home/user/.ros/log/8d573604-8b17-11e2-9cb0-0025904ea321/spawn_cube2-2*.log
all processes on machine have died, roslaunch will exit
shutting down processing monitor...
... shutting down processing monitor complete
done

And that's it, it was working perfectly well under ROS electric and it's not working with ROS fuerte. I was trying different approaches, but what it's actually happening, is that it's not taking into account the file. I even deleted ... (more)