Dronekit python车辆连接超时

Question

我正试图在我的单人无人机上使用dronekit来运行helloworld.py。

我的环境是

dronekit==2.7.0
pymavlink>=2.0.0

当我尝试运行简单的helloworld示例时，vehicle.connect()超时。

ERROR LOADING MAVNATIVE - falling back to python implementation
Connecting to udpin:0.0.0.0:14550...
>>> Link timeout, no heartbeat in last 5 seconds
>>> No heartbeat in 30 seconds, aborting.
Traceback (most recent call last):
  File "/log/solo-script/helloworld.py", line 9, in <module>
    vehicle = connect("0.0.0.0:14550", wait_ready=True, baud=57600, heartbeat_timeout=30)
  File "/log/solo-script/env/lib/python2.7/site-packages/dronekit/__init__.py", line 2787, in connect
    vehicle.initialize(rate=rate, heartbeat_timeout=heartbeat_timeout)
  File "/log/solo-script/env/lib/python2.7/site-packages/dronekit/__init__.py", line 2060, in initialize
    raise APIException('Timeout in initializing connection.')
dronekit.APIException: Timeout in initializing connection.

我也尝试过将pymavlink降级到1.1.73，但没有成功。任何帮助都是非常感谢的。