Evaluator 104

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 "/notebooks/src/duckietown-challenges/src/duckietown_challenges/cie_concrete.py", line 580, in wrap_solution
    raise InvalidSubmission(msg)
InvalidSubmission: Uncaught exception in solution:
Traceback (most recent call last):
  File "/notebooks/src/duckietown-challenges/src/duckietown_challenges/cie_concrete.py", line 575, in wrap_solution
    solution.run(cis)
  File "solution.py", line 64, in run
    solve(gym_environment, cis)  # let's try to solve the challenge, exciting ah?
  File "solution.py", line 39, in solve
    observation, reward, done, info = env.step(action)
  File "/usr/local/lib/python2.7/dist-packages/gym/wrappers/time_limit.py", line 31, in step
    observation, reward, done, info = self.env.step(action)
  File "/notebooks/src/gym-duckietown-agent/gym_duckietown_agent/envs/simplesimagent_env.py", line 107, in step
    obs, rew, done, misc = self.sim.step(action, with_observation=True)
  File "/notebooks/src/duckietown-slimremote/duckietown_slimremote/pc/robot.py", line 52, in step
    return self._failsafe_observe(msg)
  File "/notebooks/src/duckietown-slimremote/duckietown_slimremote/pc/robot.py", line 74, in _failsafe_observe
    raise Exception("Can't connect to the gym-duckietown-server")
Exception: Can't connect to the gym-duckietown-server