Error while running Dronekit plane sitl

[raed23c]

I am trying to run dronekit plane sitl on ubuntu 18.04 lts. But When I try to connect mavproxy to the sitl it spits out this error:

mavproxy.py --master tcp:127.0.0.1:5760 --out 127.0.0:14550 --out 127.0.0.1:14551
Connect tcp:127.0.0.1:5760 source_system=255
Failed to load module: No module named adsb. Use 'set moddebug 3' in the MAVProxy console to enable traceback
Log Directory:
Telemetry log: mav.tlog
Waiting for heartbeat from tcp:127.0.0.1:5760
MAV>

Init ArduPlane V3.3.0 (d6053245)

Free RAM: 4096
load_all took 767us
0 0 0 APM: Calibrating barometer
online system 1
INITIALISING> Mode INITIALISING
PANIC: AP_Baro::read unsuccessful for more than 500ms in AP_Baro::calibrate [2]

the weird thing is i can run copter sitl without any problems. If someone has faced this error before some help would be appreciated.