Submission 1018

InvalidSubmission:
Traceback (most recent call last):
  File "/workspace/src/duckietown-challenges/src/duckietown_challenges/cie_concrete.py", line 486, in wrap_evaluator
    raise InvalidSubmission(out[SPECIAL_INVALID_SUBMISSION])
InvalidSubmission: Invalid solution:
Traceback (most recent call last):
  File "/src/duckietown-challenges/src/duckietown_challenges/cie_concrete.py", line 585, in wrap_solution
    solution.run(cis)
  File "solution.py", line 127, in run
    solve(params, cis)
  File "solution.py", line 73, in solve
    model.load("model.pt", "models")
  File "/workspace/model.py", line 285, in load
    self._actor_critic, self._ob_rms = torch.load(os.path.join(directory, filename))
NameError: name 'os' is not defined

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/src/duckietown-challenges/src/duckietown_challenges/cie_concrete.py", line 590, in wrap_solution
    raise InvalidSubmission(msg)
duckietown_challenges.exceptions.InvalidSubmission: Uncaught exception in solution:
Traceback (most recent call last):
  File "/src/duckietown-challenges/src/duckietown_challenges/cie_concrete.py", line 585, in wrap_solution
    solution.run(cis)
  File "solution.py", line 127, in run
    solve(params, cis)
  File "solution.py", line 73, in solve
    model.load("model.pt", "models")
  File "/workspace/model.py", line 285, in load
    self._actor_critic, self._ob_rms = torch.load(os.path.join(directory, filename))
NameError: name 'os' is not defined