There is a bug in controller.py. Can't use MoveArm()!!!!!!!!!!!!!!

[WZX0Swarm0Robotics]

My code is: import ai2thor.controller controller = controller.step( action="MoveArm", position=dict(x=object_position['x'], y=object_position['y'], z=object_position['z']), coordinateSpace="world", restrictMovement=False, speed=1, returnToStart=False, fixedDeltaTime=0.02 ) event = controller.search_all_closed('FloorPlan227')

My version of ai2thor is 5.0.0.

The output is: ValueError: Invalid action: MoveArm

[winthos]

could you provide what parameters you are giving your agent on the Initialize action? There may be something related to how you are initializing your agent that may be the cause of this

[WZX0Swarm0Robotics]

my Initialize action are fellow: import ai2thor from ai2thor.controller import Controller controller = ai2thor.controller.Controller(agentMode="arm", scene="FloorPlan203", visibilityDistance=1.5, gridSize=0.5, renderDepthImage=False, renderInstanceSegmentation=False, width=224, height=224, fieldOfView=60)

[winthos]

Aha!! The issue is you are passing in fixedDeltaTime to the action, which is no longer part of the parameters that are valid for MoveArm. This was an internal change where the fixed delta time is now set explicitly during agent initialization by passing in fixedDeltaTime along with all the other controller initializing parameters you are already passing in, and this is set globally for the environment at that time.

I will make a note to update our documentation to reflect these changes so it is less confusing, but for now you should be able to resolve your issue by removing fixedDeltaTime from the action call, and instead setting it upon agent initialization.

[WZX0Swarm0Robotics]

It works. Thank you very much！