"Error executing: fork/exec ./mavproxy.py: no such file or directory"

[ElaineYao]

Hi,

I was running bin/avis under avis folder in README.

elainey@elainey:~/avis$ ARDUPILOT_SRC_PATH=/home/elainey/ardupilot ARDUPILOT_GZ_PATH=/home/elainey/ardupilot_gazebo bin/avis -autopilot ardupilot

2021/09/19 20:01:40 Performing a dry run...
GPS readings: 0
Accel readings: 0
Gyro readings: 0
Compass readings: 0
Baro readings: 0
2021/09/19 20:01:47 Error executing: fork/exec ./mavproxy.py: no such file or directory

I downloaded the mavproxy and it can be used in Ardupilot normally. I was wondering why it will report Error executing: fork/exec ./mavproxy.py: no such file or directory. What is the current path when it says ./mavproxy.py ? And how can I solve this problem? Thank you,

Best,
Elaine

[obicons]

Hi Elaine,

Try adding mavproxy.py to the Tools directory in ARDUPILOT_SRC_PATH.

[ElaineYao]

Hi,

I've added mavproxy.py in the Tools directory and here is the structure in Tools directory. But it still reports the same error.

Thank you,

[obicons]

Can you try adding mavproxy.py to the autotestsubdirectory in Tools? Also, make sure mavproxy.py has the executable permission set.

[ElaineYao]

Yeah. I add mavproxy.py under Tools/autotest and it works now. Thank you!

However, the output is like this and no more progress on that... I was wondering if there is anything else I need to do.

Output in terminal:
`2021/09/23 17:39:50 Performing a dry run...

`

Here is a screenshot of MAV console:

After a while, MAV console automatically closed and the output in the terminal is:

I'm quite confused as I guess something is wrong here.

[obicons]

Are you running the instrumented ArduPilot and Gazebo simulator?

[ElaineYao]

Hi,

I run the Ardupilot and Gazebo simulator first and then open a another terminal window to run Avis.
But it still says "Performing a dry run".

The operations I did are as follows:

1. In the terminal, cd ardupilot_gazebo/, run command gazebo --verbose worlds/iris_arducopter_runway.world

2. Open another window, cd ardupilot/ArduCopter, run command sim_vehicle.py -f gazebo-iris --console --map
   Then run STABILIZE> wp load ../Tools/autotest/ArduCopter_Tests/copter_terrain_mission.txt
   Run STABILIZE> mode guided
   Run GUIDED> arm throttle
   Run GUIDED> takeoff 40
   Run GUIDED> mode auto

3. Open another window, cd avis/, run command ARDUPILOT_SRC_PATH=/home/elaine/ardupilot ARDUPILOT_GZ_PATH=/home/elaine/ardupilot_gazebo bin/avis -autopilot ardupilot

I was wondering if there's something wrong with this process. Thanks in advance!

[obicons]

You shouldn't run ArduPilot or Gazebo separately. Avis will run them for you. You can try something like this:

./bin/avis -autopilot=ardupilot -workload.cmd='pipenv run python3 workloads/takeoff_and_hover.py {{.AutopilotName}}'  -output=bugs/  

[ElaineYao]

.... workloads/takeoff_and_hover.py {{.AutopilotName}}

Here, if I'm testing ardupilot, should I replace {{.AutopilotName}} with ardupilot?

If so, after I run this command(I also added the ARDUPILOT_SRC_PATH, etc,), it's still 'dry run..'

Then I run this part separately, pipenv run python3 workloads/takeoff_and_hover.py ardupilot, it reports errors too.

Traceback (most recent call last):
  File "workloads/takeoff_and_hover.py", line 27, in <module>
    t.test()
  File "workloads/takeoff_and_hover.py", line 7, in test
    time = self.time()
  File "/home/elaine/avis/workloads/target.py", line 44, in time
    return self.stub.Time(simulator_controller_pb2.TimeRequest())
  File "/home/elaine/.local/share/virtualenvs/avis-RASjfZWJ/lib/python3.8/site-packages/grpc/_channel.py", line 946, in __call__
    return _end_unary_response_blocking(state, call, False, None)
  File "/home/elaine/.local/share/virtualenvs/avis-RASjfZWJ/lib/python3.8/site-packages/grpc/_channel.py", line 849, in _end_unary_response_blocking
    raise _InactiveRpcError(state)
grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
	status = StatusCode.UNAVAILABLE
	details = "failed to connect to all addresses"
	debug_error_string = "{"created":"@1633116438.422484247","description":"Failed to pick subchannel","file":"src/core/ext/filters/client_channel/client_channel.cc","file_line":3158,"referenced_errors":[{"created":"@1633116438.422483062","description":"failed to connect to all addresses","file":"src/core/lib/transport/error_utils.cc","file_line":147,"grpc_status":14}]}"
>

[ElaineYao]

Hi @obicons,

I'm really interested in this implementation and was wondering if you could provide a virtual machine and related commands to run this project.

Much appreciated your time and patience.

[obicons]

Hi Elaine. Sure, I can package this work into a Docker image. I'm juggling a few things, but I'll try to push it sometime this week.

[ElaineYao]

@obicons Thanks in advance!

[StarRain0728]

pipenv run python3 workloads/takeoff_and_hover.py ardupilot

@obicons Thanks in advance!

Have you run successfully now？