"ConstellationTasking" simulator error

[hithxh]

When training ConstellationTasking, I got this error,

Traceback (most recent call last):
  File "/bsk_rl/examples/maddpg.py", line 384, in <module>
    for agent_id in env.agents:
                    ^^^^^^^^^^
  File "/bsk_rl/src/bsk_rl/gym.py", line 467, in agents
    truncated = super()._get_truncated()
                ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/bsk_rl/src/bsk_rl/gym.py", line 305, in _get_truncated
    return self.simulator.sim_time >= self.time_limit
           ^^^^^^^^^^^^^^
AttributeError: 'ConstellationTasking' object has no attribute 'simulator'

And if the simulator instanced as self.simulator = Simulator(satellites=self.satellites, world_type=self.world_type, world_args=self.world_args_generator, sim_rate=self.sim_rate, max_step_duration=self.max_step_duration, time_limit=self.time_limit) world_type got following error

  File "/bsk_rl/src/bsk_rl/sim/world.py", line 180, in setup_gravity_bodies
    self.gravFactory.createSpiceInterface(
  File "/basilisk/dist3/Basilisk/utilities/simIncludeGravBody.py", line 465, in createSpiceInterface
    self.spiceObject.UTCCalInit = time
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: in method 'SpiceInterface_UTCCalInit_set', argument 2 of type 'std::string const &'

Any suggestions to address this issue?

[Mark2000]

Are you able to run the tests or the example constellation ipynb file successfully?

[hithxh]

Yes, everything is okay. I just realized that env.reset() should be called first. Now it works. Thanks, Mark!