Controller manager won't load the controllers (effort_controllers and joint_state_controller)

edit

Hi, I'm trying to run a simulation in gazebo of the Crane+robot,

After having a lot of trouble initializing the controller manager (sneaky namespace issue) I finally get it running. I check it with rosservice list | grep controller_manager and everything looks fine:

/controller_manager/list_controller_types
/controller_manager/list_controllers
/controller_manager/load_controller
/controller_manager/reload_controller_libraries
/controller_manager/switch_controller
/controller_manager/unload_controller

However, when I go check if my controllers are running with rosrun controller_manager controller_manager list I get:

No controllers are loaded in mechanism control

The end of my output looks like this:

   [ INFO] [1498111743.053574972, 0.212000000]: Loaded gazebo_ros_control.
    [WARN] [1498111835.614948, 92.563000]: Controller Spawner couldn't find the expected controller_manager ROS interface.
    [crane/controller_spawner-4] process has finished cleanly
    log file: /home/albagr/.ros/log/425536cc-5711-11e7-8542-7446a0a300e6/crane-controller_spawner-4*.log
    [ERROR] [1498111846.979653545, 103.904000000]: Could not load controller 'joint2_effort_controller' because the type was not specified. Did you load the controller configuration on the parameter server (namespace: '/joint2_effort_controller')?

What I understand from this is that although the controller manager has been initialized, it can't load the controllers for some reason. When I try to load controllers individually with rosrun controller_manager controller_manager load [controller] the last error from the output appears. I've checked and all ros-kinetic-ros-control ros-kinetic-ros-controllers ros-kinetic-joint-state-controller ros-kinetic-effort-controllers and ros-kinetic-position-controllers packages are installed and the joint type is correct. I've also added the hardwareInterface tags in the urdf file as in here,

<transmission name="joint5_trans">
        <type>transmission_interface/SimpleTransmission</type>
        <joint name="joint5">
            <hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
        </joint>
        <actuator name="joint5_motor">
            <mechanicalReduction>2</mechanicalReduction>
            <hardwareInterface>hardware_interface/EffortJointInterface</hardwareInterface>
        </actuator>
 </transmission>

I don't know where else to look. If you could help me out I'll really appreciate it. Thank you!

Edit:

My .yaml file

crane:

#Publish all joint states------------
 joint_state_controller:
  type: joint_state_controller/JointStateController
  publish_rate: 50

#Effort controllers------------------
 joint1_effort_controller:
  type: effort_controllers/JointEffortController
  joint: joint1
  pid: {p: 0.75, i: 0.5, d: 0.01}
 joint2_effort_controller:
  type: effort_controllers/JointEffortController
  joint: joint2
  pid: {p: 0.75, i: 0.5, d: 0.01}
 joint3_effort_controller:
  type: effort_controllers/JointEffortController
  joint: joint3
  pid: {p: 0.75, i: 0.5, d: 0.01}
 joint4_effort_controller:
  type: effort_controllers/JointEffortController
  joint: joint4
  pid: {p: 0.75, i: 0.5, d: 0.01}
 joint5_effort_controller:
  type: effort_controllers/JointEffortController
  joint: joint5
  pid: {p: 0.75, i: 0.5, d: 0.01}

and my launch file

<launch>
  <!-- Load joint controller configurations from YAML file to parameter server -->
  <rosparam file="$(find crane_control)/config/crane_control.yaml" command="load" ns="/crane"/>

  <!-- load the controllers -->
  <node name="controller_spawner"
    pkg="controller_manager"
    type="spawner" respawn="false"
    output="screen" ns="/crane"
    args="--namespace=/crane joint_state_controller joint1_effort_controller joint2_effort_controller joint3_effort_controller joint4_effort_controller joint5_effort_controller --timeout 100"/>

 <!-- convert joint states to TF transforms for rviz, etc --> 
  <node name="robot_state_publisher" pkg="robot_state_publisher" type="robot_state_publisher" respawn="false" output="screen"> 
    <param name="/crane/robot_description" command="$(find xacro)/xacro.py '$(find crane_urdf)/src/crane+.xacro'" />
    <remap from="/joint_states" to="/crane/joint_states" /> 
  </node>
</launch>

EDIT:

If I remove the namespace from here (launch file)

   <launch>
      <!-- Load joint controller configurations from YAML file to parameter server -->
      <rosparam file="$(find crane_control)/config/crane_control.yaml" command="load ...