Job 537

InvalidSubmission:
Traceback (most recent call last):
  File "/amod/target/src/duckietown-challenges/src/duckietown_challenges/cie_concrete.py", line 395, 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 586, in wrap_solution
    raise InvalidSubmission(msg)
InvalidSubmission: Uncaught exception in solution:
Traceback (most recent call last):
  File "/src/duckietown-challenges/src/duckietown_challenges/cie_concrete.py", line 581, in wrap_solution
    solution.run(cis)
  File "/project/solution.py", line 20, in run
    cis.info('in directory %s' % pwd)
NameError: global name 'pwd' is not defined