The rotors don't spin about bebops HOT 14 CLOSED

<?xml version="1.0"?>
<launch>
    <arg name="name" default="bebop"/>
    <arg name="x" default="0.0" />
    <arg name="y" default="0.0" />
    <arg name="z" default="0.02" />
    <arg name="use_sim_time" default="true"/>
    <arg name="world_name" default="basic"/>
    <arg name="wind_force" default="0.5"/>
    <arg name="wind_start" default="15.0"/>
    <arg name="wind_duration" default="10.0"/>
    <arg name="wind_direction_x" default="0.0"/>
    <arg name="wind_direction_y" default="0.0"/>
    <arg name="wind_direction_z" default="1.0"/>
    <arg name="csvFilesStoring" default="false"/>
    <arg name="csvFilesStoringTime" default="15.0"/> <!-- seconds -->
    <arg name="user_account" default="giuseppe"/>
    <arg name="waypoint_filter" default="true"/>
    <arg name="EKFActive" default="false"/>
    <arg name="enable_imu" default="true"/>
    <arg name="enable_odometry_sensor_with_noise" default="false"/>
    <!-- The "disable_odometry_sensor_with_noise" variable values is equal to true if "enable_odometry_sensor_with_noise"
    is false, and viceversa -->
    <arg name="disable_odometry_sensor_with_noise" value="true" unless="$(arg enable_odometry_sensor_with_noise)"/>
    <arg name="disable_odometry_sensor_with_noise" value="false" if="$(arg enable_odometry_sensor_with_noise)"/>
    <arg name="enable_ground_truth_sensor" default="false"/>
    <arg name="enable_wind_plugin" default="false"/>
    <arg name="enable_laser1D" default="false"/>
    
  <env name="GAZEBO_MODEL_PATH" value="${GAZEBO_MODEL_PATH}:$(find bebop_simulator)/models"/>
  <env name="GAZEBO_RESOURCE_PATH" value="${GAZEBO_RESOURCE_PATH}:$(find bebop_simulator)/models"/>
  <include file="$(find gazebo_ros)/launch/empty_world.launch">
    <arg name="world_name" value="$(find bebop_simulator)/worlds/$(arg world_name).world" />
  </include>

    <!-- Launch UAV -->
    <include file="$(find bebop_simulator)/launch/spawn_bebop.launch">
       <arg name="name" value="$(arg name)" />
       <arg name="x" value="$(arg x)"/>
       <arg name="y" value="$(arg y)"/>
       <arg name="z" value="$(arg z)"/>
       <arg name="wind_force" value="$(arg wind_force)"/>
       <arg name="wind_start" value="$(arg wind_start)"/>
       <arg name="wind_duration" value="$(arg wind_duration)"/>
       <arg name="wind_direction_x" value="$(arg wind_direction_x)"/>
       <arg name="wind_direction_y" value="$(arg wind_direction_y)"/>
       <arg name="wind_direction_z" value="$(arg wind_direction_z)"/>
      <!-- The disable_odometry_sensor_with_noise will only become true if enable_odometry_sensor_with_noise will is false.
       In this way, only one odometry sensor will be simulated: with or without noise. -->
       <arg name="enable_odometry_sensor_with_noise" value="$(arg enable_odometry_sensor_with_noise)"/>
       <arg name="disable_odometry_sensor_with_noise" value="$(arg disable_odometry_sensor_with_noise)" /> 
       <arg name="enable_ground_truth_sensor" value="$(arg enable_ground_truth_sensor)"/>
       <arg name="enable_wind_plugin" value="$(arg enable_wind_plugin)"/>
       <arg name="enable_laser1D" value="$(arg enable_laser1D)"/>
       <arg name="enable_imu" value="$(arg enable_imu)"/>
    </include>

    <!-- Launch the controller  -->
    <node name="position_controller_node" pkg="bebop_simulator" type="position_controller_node" output="screen"> 
      <rosparam command="load" file="$(find bebop_simulator)/resource/controller_bebop.yaml" />
      <rosparam command="load" file="$(find bebop_simulator)/resource/bebop.yaml" />
      <rosparam command="load" file="$(find bebop_simulator)/resource/EKF_matrix.yaml" />
      <rosparam command="load" file="$(find bebop_simulator)/resource/waypoint_filter.yaml" />
      <param name="use_sim_time" value="$(arg use_sim_time)" />
      <param name="csvFilesStoring" value="$(arg csvFilesStoring)"/>
      <param name="csvFilesStoringTime" value="$(arg csvFilesStoringTime)"/>
      <param name="user_account" value="$(arg user_account)"/>
      <param name="waypoint_filter" value="$(arg waypoint_filter)"/>
      <param name="EKFActive" value="$(arg EKFActive)"/>
      <remap from="/odometry" to="/bebop/odometry" />
      <remap from="/odometry_gt" to="/bebop/odometry_gt" />
      <remap from="/referenceAngles" to="/bebop/referenceAngles" />
      <remap from="/filteredOutput" to="/bebop/filteredOutput" />
      <remap from="/stateErrors" to="/bebop/stateErrors" />
      <remap from="/smoothedTrajectory" to="/bebop/smoothedTrajectory" />
      <remap from="/command/trajectory" to="/bebop/command/trajectory" />
    </node>

    <!-- Launch the trajectory generator -->
   <group ns="$(arg name)">
       <node name="hovering_example" pkg="bebop_simulator" type="hovering_example" output="screen"/>   
    </group>

</launch>