gazebo_ros_camera not loading in Fuerte

edit

I recently upgraded to ROS Fuerte on Ubuntu 12.04 and am unable to load my old Gazebo camera files. I have an empty world spawned and running and then attempt to spawn my camera model in a launch file:

<launch>
<arg name="use_sim_time" default="true"/>
<arg name="gui" default="true"/>

<!-- set use_sim_time flag -->
<group if="$(arg use_sim_time)">
    <param name="/use_sim_time" value="true" />
</group>

<!-- start empty world -->
<node name="empty_world_server" pkg="gazebo" type="gazebo" args="$(find gazebo_worlds)/worlds/empty_throttled.world" respawn="false" output="screen" />

<!-- start gui -->
<group if="$(arg gui)">
    <node name="gazebo_gui" pkg="gazebo" type="gui" respawn="false" output="screen"/>
</group>

<node name="spawn_east_camera" pkg="gazebo" type="spawn_model" args="-file $(find rrl_simulation)/robots/test.urdf -urdf -x -2.5 -z 2.0 -P 0.87 -model east_camera" respawn="false" output="screen" />

</launch>

The following is the URDF of the camera:

<?xml version="1.0"?>

<robot name="east_camera" xmlns:body="&lt;a href=" http:="" playerstage.sourceforge.net="" gazebo="" xmlschema="" #body"="">http://playerstage.sourceforge.net/gazebo/xmlschema/#body" xmlns:controller="http://playerstage.sourceforge.net/gazebo/xmlschema/#controller" xmlns:geom="http://playerstage.sourceforge.net/gazebo/xmlschema/#geom" xmlns:sensor="http://playerstage.sourceforge.net/gazebo/xmlschema/#sensor" xmlns:xacro="http://ros.org/wiki/xacro" > <link name="east_camera_link"> <inertial> <mass value="1"/> <origin xyz="0 0 0"/> <inertia ixx="0.1" ixy="0.0" ixz="0.0" iyy="0.1" iyz="0.0" izz="0.1"/> </inertial> </link>

<gazebo reference="east_camera">
    <sensor:camera name="east_camera_sensor">
        <imageSize>640 480</imageSize>
        <imageFormat>R8G8B8</imageFormat>
        <hfov>90</hfov>
        <nearClip>0.01</nearClip>
        <farClip>100</farClip>
        <updateRate>30.0</updateRate>
        <controller:gazebo_ros_camera name="east_camera_controller" plugin="libgazebo_ros_camera.so">
            <alwaysOn>true</alwaysOn>
            <updateRate>10.0</updateRate>
            <imageTopicName>sim_east_camera/image_raw</imageTopicName>
            <interface:camera name="east_camera_interface" />
        </controller:gazebo_ros_camera>
    </sensor:camera>
    <turnGravityOff>true</turnGravityOff>
    <material>Gazebo/Blue</material>
</gazebo>

</robot>

Once I try and spawn in, the following errors are produced:

... logging to /home/rctoris/.ros/log/d7e20176-95f5-11e1-9b89-782bcbad8931/roslaunch-MAGLEV-26292.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://MAGLEV:51648/

SUMMARY
========

PARAMETERS
 * /rosdistro
 * /rosversion
 * /use_sim_time

NODES
  /
    empty_world_server (gazebo/gazebo)
    gazebo_gui (gazebo/gui)
    spawn_east_camera (gazebo/spawn_model)

auto-starting new master
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[master]: started with pid [26308]
ROS_MASTER_URI=http://localhost:11311

setting /run_id to d7e20176-95f5-11e1-9b89-782bcbad8931
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[rosout-1]: started with pid [26321]
started core service [/rosout]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[empty_world_server-2]: started with pid [26335]
Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
process[gazebo_gui-3]: started with pid [26343]
Gazebo multi-robot simulator, version 1.0.1
Copyright (C) 2011 Nate Koenig, John Hsu, Andrew Howard, and contributors.
Released under ...