title: ROS/ MoveIt! ERROR: Unable to identify any set of controllers that can actuate the specified joints
body: <p>I've been trying to follow <a href="http://www.wilselby.com/research/ros-integration/3d-mapping-navigation" rel="nofollow noreferrer">this tutorial</a> to integrate quadcopters into MoveIt!</p>
  <p>I need help trying to execute paths. I think I've done everything right till where I do the launch. When I launch, the RVIZ pops up and the quadcopter appears. Then I press 'plan' on the rviz and I can see a shadow moving from where my quadcopter is to where I want it to be (my goal). The problem is when I press 'execute', to actually go to the goal, I have the following errors:</p>
  <blockquote>
  <p>[ERROR]: Unable to identify any set of controllers that can actuate the specified joints: [ virtual_joint ]</p>
  <p>[ERROR]: Known controllers and their joints:<br />
  <em>In which appears none, or it doesn't have any known controllers</em></p>
  </blockquote>
  <p>And then I get the following info:</p>
  <blockquote>
  <p>[INFO]: ABORTED: Solution found but controller failed during execution</p>
  </blockquote>
  <p>I've tried searching online for this error, but I don't seem to find a solution. Can someone help me?
  Thanks in advance.</p>