Little issue with the code (from a programming Noob)

[Chrisabcde]

Hi, I recently started learning how to code and use complex programmes like this one. I encountered an error when I was running the programme in the Colab at Part 2: Train.

train(start_date = '2022-08-26', 
      end_date = '2022-08-31',
      ticker_list = ticker_list, 
      data_source = 'alpaca',
      time_interval= '1Min', 
      technical_indicator_list= INDICATORS,
      drl_lib='elegantrl', 
      env=env,
      model_name='ppo',
      if_vix=True, 
      API_KEY = API_KEY, 
      API_SECRET = API_SECRET, 
      API_BASE_URL = API_BASE_URL,
      erl_params=ERL_PARAMS,
      cwd='./papertrading_erl', #current_working_dir
      break_step=1e5)

It showed an error:

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
[<ipython-input-41-bcb05bda8686>](https://localhost:8080/#) in <cell line: 1>()
----> 1 train(start_date = '2022-08-26', 
      2       end_date = '2022-08-31',
      3       ticker_list = ticker_list,
      4       data_source = 'alpaca',
      5       time_interval= '1Min',

2 frames
[<ipython-input-3-dca4ea92a0f2>](https://localhost:8080/#) in train_agent(args)
    308     env = build_env(args.env_class, args.env_args)
    309     agent = args.agent_class(args.net_dims, args.state_dim, args.action_dim, gpu_id=args.gpu_id, args=args)
--> 310     agent.states = env.reset()[np.newaxis, :]
    311 
    312     evaluator = Evaluator(eval_env=build_env(args.env_class, args.env_args),

TypeError: tuple indices must be integers or slices, not tuple

I am not sure what to do about it. I would be really grateful if someone can answer this.

Best,
Chris