Errors while applying force on a model
I apply a force: rosservice call /gazebo/apply_body_wrench '{body_name: "quadrotor::link", reference_frame: "quadrotor::link", wrench: { force: { x: 0, y: 0, z: -20.0 } }, start_time: 0, duration: -1 }' And get the error: [ERROR] [1371151542.440105542, 5372.627000000]: wrench defined as [link]:[0.000000 0.000000 -20.000000, 0.000000 0.000000 0.000000] --> applied as [link]:[0.000000 0.000000 -20.000000, 0.000000 0.000000 0.000000]
Please help. Thanks.