Hi everyone, i'm trying use a RaspberryPi 3B with an APM2.8 for autonomous flight indoor, but when i use apm2.launch some error messages appear: i use

source /opt/ros/kinetic/setup.bash

... logging to /home/murcia/.ros/log/bb70ce78-9991-11e7-94bc-b827eb7b8a84/roslaunch-murcia-desktop-3190.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://murcia-desktop:39729/

SUMMARY
========

CLEAR PARAMETERS
 * /mavros/

PARAMETERS
 * /mavros/cmd/use_comp_id_system_control: False
 * /mavros/conn/heartbeat_rate: 1.0
 * /mavros/conn/system_time_rate: 0.0
 * /mavros/conn/timeout: 10.0
 * /mavros/conn/timesync_rate: 0.0
 * /mavros/distance_sensor/rangefinder_pub/field_of_view: 0.0
 * /mavros/distance_sensor/rangefinder_pub/frame_id: lidar
 * /mavros/distance_sensor/rangefinder_pub/id: 0
 * /mavros/distance_sensor/rangefinder_pub/send_tf: False
 * /mavros/distance_sensor/rangefinder_pub/sensor_position/x: 0.0
 * /mavros/distance_sensor/rangefinder_pub/sensor_position/y: 0.0
 * /mavros/distance_sensor/rangefinder_pub/sensor_position/z: -0.1
 * /mavros/distance_sensor/rangefinder_sub/id: 0
 * /mavros/distance_sensor/rangefinder_sub/orientation: PITCH_270
 * /mavros/distance_sensor/rangefinder_sub/subscriber: True
 * /mavros/fcu_url: /dev/ttyAMA0:57600
 * /mavros/gcs_url:
 * /mavros/global_position/frame_id: fcu
 * /mavros/global_position/rot_covariance: 99999.0
 * /mavros/global_position/tf/child_frame_id: fcu_utm
 * /mavros/global_position/tf/frame_id: local_origin
 * /mavros/global_position/tf/send: False
 * /mavros/image/frame_id: px4flow
 * /mavros/imu/angular_velocity_stdev: 0.000349065850399
 * /mavros/imu/frame_id: fcu
 * /mavros/imu/linear_acceleration_stdev: 0.0003
 * /mavros/imu/magnetic_stdev: 0.0
 * /mavros/imu/orientation_stdev: 1.0
 * /mavros/local_position/frame_id: fcu
 * /mavros/local_position/tf/child_frame_id: fcu
 * /mavros/local_position/tf/frame_id: local_origin
 * /mavros/local_position/tf/send: False
 * /mavros/mission/pull_after_gcs: True
 * /mavros/mocap/use_pose: True
 * /mavros/mocap/use_tf: False
 * /mavros/plugin_blacklist: ['actuator_contro...
 * /mavros/plugin_whitelist: []
 * /mavros/px4flow/frame_id: px4flow
 * /mavros/px4flow/ranger_fov: 0.0
 * /mavros/px4flow/ranger_max_range: 5.0
 * /mavros/px4flow/ranger_min_range: 0.3
 * /mavros/safety_area/p1/x: 1.0
 * /mavros/safety_area/p1/y: 1.0
 * /mavros/safety_area/p1/z: 1.0
 * /mavros/safety_area/p2/x: -1.0
 * /mavros/safety_area/p2/y: -1.0
 * /mavros/safety_area/p2/z: -1.0
 * /mavros/setpoint_accel/send_force: False
 * /mavros/setpoint_attitude/reverse_throttle: False
 * /mavros/setpoint_attitude/tf/child_frame_id: attitude
 * /mavros/setpoint_attitude/tf/frame_id: local_origin
 * /mavros/setpoint_attitude/tf/listen: False
 * /mavros/setpoint_attitude/tf/rate_limit: 10.0
 * /mavros/setpoint_position/tf/child_frame_id: setpoint
 * /mavros/setpoint_position/tf/frame_id: local_origin
 * /mavros/setpoint_position/tf/listen: False
 * /mavros/setpoint_position/tf/rate_limit: 50.0
 * /mavros/startup_px4_usb_quirk: False
 * /mavros/sys/disable_diag: False
 * /mavros/sys/min_voltage: 10.0
 * /mavros/target_component_id: 1
 * /mavros/target_system_id: 1
 * /mavros/tdr_radio/low_rssi: 40
 * /mavros/time/time_ref_source: fcu
 * /mavros/time/timesync_avg_alpha: 0.6
 * /mavros/time/timesync_mode: NONE
 * /mavros/vibration/frame_id: vibration
 * /mavros/vision_pose/tf/child_frame_id: vision
 * /mavros/vision_pose/tf/frame_id: local_origin
 * /mavros/vision_pose/tf/listen: False
 * /mavros/vision_pose/tf/rate_limit: 10.0
 * /mavros/vision_speed/listen_twist: False
 * /rosdistro: kinetic
 * /rosversion: 1.12.7

NODES
  /
    mavros (mavros/mavros_node)

auto-starting new master
process[master]: started with pid [3201]
ROS_MASTER_URI=http://localhost:11311

setting /run_id to bb70ce78-9991-11e7-94bc-b827eb7b8a84
process[rosout-1]: started with pid [3214]
started core service [/rosout]
process[mavros-2]: started with pid [3234]
[ INFO] [1505423687.995805534]: FCU URL: /dev/ttyAMA0:57600
[ WARN] [1505423687.999951731]: init: message from ASLUAV, MSG-ID 201 ignored! Table has different entry.
[ WARN] [1505423688.001186783]: init: message from autoquad, MSG-ID 150 ignored! Table has different entry.
[ WARN] [1505423688.001306835]: init: message from autoquad, MSG-ID 152 ignored! Table has different entry.
[ WARN] [1505423688.002359230]: init: message from matrixpilot, MSG-ID 150 ignored! Table has different entry.
[ WARN] [1505423688.002476105]: init: message from matrixpilot, MSG-ID 151 ignored! Table has different entry.
[ WARN] [1505423688.002547043]: init: message from matrixpilot, MSG-ID 152 ignored! Table has different entry.
[ WARN] [1505423688.002646105]: init: message from matrixpilot, MSG-ID 153 ignored! Table has different entry.
[ WARN] [1505423688.002745845]: init: message from matrixpilot, MSG-ID 155 ignored! Table has different entry.
[ WARN] [1505423688.002825272]: init: message from matrixpilot, MSG-ID 156 ignored! Table has different entry.
[ WARN] [1505423688.002899074]: init: message from matrixpilot, MSG-ID 157 ignored! Table has different entry.
[ WARN] [1505423688.002970636]: init: message from matrixpilot, MSG-ID 158 ignored! Table has different entry.
[ WARN] [1505423688.003036834]: init: message from matrixpilot, MSG-ID 170 ignored! Table has different entry.
[ WARN] [1505423688.003108709]: init: message from matrixpilot, MSG-ID 171 ignored! Table has different entry.
[ WARN] [1505423688.003179959]: init: message from matrixpilot, MSG-ID 172 ignored! Table has different entry.
[ WARN] [1505423688.003247303]: init: message from matrixpilot, MSG-ID 173 ignored! Table has different entry.
[ WARN] [1505423688.003317459]: init: message from matrixpilot, MSG-ID 174 ignored! Table has different entry.
[ WARN] [1505423688.003383605]: init: message from matrixpilot, MSG-ID 175 ignored! Table has different entry.
[ WARN] [1505423688.003448865]: init: message from matrixpilot, MSG-ID 176 ignored! Table has different entry.
[ WARN] [1505423688.003519282]: init: message from matrixpilot, MSG-ID 177 ignored! Table has different entry.
[ WARN] [1505423688.003585584]: init: message from matrixpilot, MSG-ID 178 ignored! Table has different entry.
[ WARN] [1505423688.003684126]: init: message from matrixpilot, MSG-ID 179 ignored! Table has different entry.
[ WARN] [1505423688.003755896]: init: message from matrixpilot, MSG-ID 180 ignored! Table has different entry.
[ WARN] [1505423688.003823032]: init: message from matrixpilot, MSG-ID 181 ignored! Table has different entry.
[ WARN] [1505423688.003897146]: init: message from matrixpilot, MSG-ID 182 ignored! Table has different entry.
[ WARN] [1505423688.003963500]: init: message from matrixpilot, MSG-ID 183 ignored! Table has different entry.
[ WARN] [1505423688.004029386]: init: message from matrixpilot, MSG-ID 184 ignored! Table has different entry.
[ WARN] [1505423688.004098657]: init: message from matrixpilot, MSG-ID 185 ignored! Table has different entry.
[ WARN] [1505423688.004166365]: init: message from matrixpilot, MSG-ID 186 ignored! Table has different entry.
[ WARN] [1505423688.005506625]: init: message from paparazzi, MSG-ID 180 ignored! Table has different entry.
[ WARN] [1505423688.005626104]: init: message from paparazzi, MSG-ID 181 ignored! Table has different entry.
[ WARN] [1505423688.005700583]: init: message from paparazzi, MSG-ID 182 ignored! Table has different entry.
[ WARN] [1505423688.005767458]: init: message from paparazzi, MSG-ID 183 ignored! Table has different entry.
[ WARN] [1505423688.005832510]: init: message from paparazzi, MSG-ID 184 ignored! Table has different entry.
[ WARN] [1505423688.007073760]: init: message from slugs, MSG-ID 170 ignored! Table has different entry.
[ WARN] [1505423688.007274385]: init: message from slugs, MSG-ID 172 ignored! Table has different entry.
[ WARN] [1505423688.007371208]: init: message from slugs, MSG-ID 173 ignored! Table has different entry.
[ WARN] [1505423688.007440218]: init: message from slugs, MSG-ID 176 ignored! Table has different entry.
[ WARN] [1505423688.007507249]: init: message from slugs, MSG-ID 177 ignored! Table has different entry.
[ WARN] [1505423688.007573656]: init: message from slugs, MSG-ID 179 ignored! Table has different entry.
[ WARN] [1505423688.007665999]: init: message from slugs, MSG-ID 180 ignored! Table has different entry.
[ WARN] [1505423688.007734593]: init: message from slugs, MSG-ID 181 ignored! Table has different entry.
[ WARN] [1505423688.007799645]: init: message from slugs, MSG-ID 184 ignored! Table has different entry.
[ WARN] [1505423688.007872197]: init: message from slugs, MSG-ID 185 ignored! Table has different entry.
[ WARN] [1505423688.007940999]: init: message from slugs, MSG-ID 186 ignored! Table has different entry.
[ WARN] [1505423688.008007249]: init: message from slugs, MSG-ID 188 ignored! Table has different entry.
[ WARN] [1505423688.008082562]: init: message from slugs, MSG-ID 191 ignored! Table has different entry.
[ WARN] [1505423688.008150114]: init: message from slugs, MSG-ID 192 ignored! Table has different entry.
[ WARN] [1505423688.008232770]: init: message from slugs, MSG-ID 193 ignored! Table has different entry.
[ WARN] [1505423688.008336416]: init: message from slugs, MSG-ID 194 ignored! Table has different entry.
[ INFO] [1505423688.011462665]: serial0: device: /dev/ttyAMA0 @ 57600 bps
[ INFO] [1505423688.012331206]: GCS bridge disabled
[ INFO] [1505423688.273015550]: Plugin 3dr_radio loaded
[ INFO] [1505423688.285578359]: Plugin 3dr_radio initialized
[ INFO] [1505423688.286177213]: Plugin actuator_control blacklisted
[ INFO] [1505423688.286576588]: Plugin altitude blacklisted
[ INFO] [1505423688.287362525]: Plugin command loaded
[ INFO] [1505423688.328979230]: Plugin command initialized
[ INFO] [1505423688.330004595]: Plugin ftp blacklisted
[ INFO] [1505423688.331106365]: Plugin global_position loaded
[ INFO] [1505423688.407649414]: Plugin global_position initialized
[ INFO] [1505423688.408556861]: Plugin hil_actuator_controls loaded
[ INFO] [1505423688.412670662]: Plugin hil_actuator_controls initialized
[ INFO] [1505423688.413642328]: Plugin hil_controls loaded
[ INFO] [1505423688.417969462]: Plugin hil_controls initialized
[ INFO] [1505423688.418895035]: Plugin home_position loaded
[ INFO] [1505423688.453147524]: Plugin home_position initialized
[ INFO] [1505423688.453721378]: Plugin imu_pub loaded
[ INFO] [1505423688.517130472]: Plugin imu_pub initialized
[ INFO] [1505423688.517768753]: Plugin local_position loaded
[ INFO] [1505423688.577463995]: Plugin local_position initialized
[ INFO] [1505423688.578161338]: Plugin manual_control loaded
[ INFO] [1505423688.583417899]: Plugin manual_control initialized
[ INFO] [1505423688.584061128]: Plugin param loaded
[ INFO] [1505423688.602079508]: Plugin param initialized
[ INFO] [1505423688.602600081]: Plugin rc_io loaded
[ INFO] [1505423688.626941687]: Plugin rc_io initialized
[ INFO] [1505423688.627111323]: Plugin safety_area blacklisted
[ INFO] [1505423688.627564656]: Plugin setpoint_accel loaded
[ INFO] [1505423688.662484905]: Plugin setpoint_accel initialized
[ INFO] [1505423688.663032509]: Plugin setpoint_attitude loaded
[ INFO] [1505423688.755916282]: Plugin setpoint_attitude initialized
[ INFO] [1505423688.756476855]: Plugin setpoint_position loaded
[ INFO] [1505423688.819781678]: Plugin setpoint_position initialized
[ INFO] [1505423688.820471209]: Plugin setpoint_raw loaded
[ INFO] [1505423688.909568004]: Plugin setpoint_raw initialized
[ INFO] [1505423688.910234201]: Plugin setpoint_velocity loaded
[ INFO] [1505423688.961711268]: Plugin setpoint_velocity initialized
[ INFO] [1505423688.962323768]: Plugin sys_status loaded
[ INFO] [1505423689.024569842]: Plugin sys_status initialized
[ INFO] [1505423689.025118904]: Plugin sys_time loaded
[ INFO] [1505423689.053447489]: TM: Timesync mode: NONE
[ INFO] [1505423689.060054101]: Plugin sys_time initialized
[ INFO] [1505423689.060720663]: Plugin vfr_hud loaded
[ INFO] [1505423689.082202739]: Plugin vfr_hud initialized
[ INFO] [1505423689.082833625]: Plugin waypoint loaded
[ INFO] [1505423689.111027470]: Plugin waypoint initialized
[ INFO] [1505423689.111284032]: Built-in SIMD instructions: None
[ INFO] [1505423689.111380803]: Built-in MAVLink package version: 2017.8.8
[ INFO] [1505423689.111493146]: Known MAVLink dialects: common ardupilotmega ASLUAV autoquad matrixpilot paparazzi slugs standard uAvionix ualberta
[ INFO] [1505423689.111634240]: MAVROS started. MY ID 1.240, TARGET ID 1.1
[ INFO] [1505423689.803867033]: CON: Got HEARTBEAT, connected. FCU: ArduPilotMega / ArduCopter
[ WARN] [1505423691.813171650]: VER: broadcast request timeout, retries left 4
[ WARN] [1505423692.812744881]: VER: broadcast request timeout, retries left 3
[ WARN] [1505423693.824199346]: VER: unicast request timeout, retries left 2
[ WARN] [1505423694.823679012]: VER: unicast request timeout, retries left 1
[ WARN] [1505423695.825006166]: VER: unicast request timeout, retries left 0
[ WARN] [1505423696.842866011]: VER: your FCU don't support AUTOPILOT_VERSION, switched to default capabilities
[ INFO] [1505423699.804418591]: HP: requesting home position
[ERROR] [1505423699.830719673]: FCU: ArduCopter V3.2.1 (36b405fb)
[ERROR] [1505423699.840112742]: FCU: Frame: QUAD
[ INFO] [1505423704.824061060]: WP: mission received
[ INFO] [1505423709.804605894]: HP: requesting home position
[ INFO] [1505423712.058988170]: PR: parameters list received
[ INFO] [1505423719.804454486]: HP: requesting home position
[ INFO] [1505423729.805187779]: HP: requesting home position

and when i use an another terminal the command

rosrun mavros mavsafety arm

this error messages appear

[ INFO] [1505423719.804454486]: HP: requesting home position
[ INFO] [1505423729.805187779]: HP: requesting home position
[ INFO] [1505423739.805232925]: HP: requesting home position
[ INFO] [1505423749.804591394]: HP: requesting home position
[ERROR] [1505423756.799841478]: FCU: GROUND START
[ERROR] [1505423756.825765516]: FCU: Initialising APM...
[ERROR] [1505423757.850882202]: FCU: Calibrating barometer
[ERROR] [1505423757.860542974]: FCU: barometer calibration complete
[ INFO] [1505423759.804599291]: HP: requesting home position
[ INFO] [1505423769.805343070]: HP: requesting home position

and the 4 motors start to spining but just for 10 or 12 seconds and then stop and when i try use

rostopic pub mavros/rc/override mavros_msgs/OverrideRCIn '{channels: [ 1100, 1100, 1800, 1100, 1100, 1100, 1100, 1100]}'

in the same terminal appear

publishing and latching message. Press ctrl-C to terminate

but nothing happens, the motors stand still, can anyone help me? and thanks advance