Cant find the "hparams.json" while running the play.py file

While running the reinforced learning code for carla the hparams file was not found and and error was displayed:

`Traceback (most recent call last):
  File "/home/carlauser/Carla-RL/play.py", line 18, in <module>
    for model in hparams['models']:
TypeError: 'NoneType' object is not subscriptable`

Any help?