KeyboardInterrupt：assert data_config["source"]["default_start_time_index"] % data_granularity == 0

[duoyw]

🐛 Bug Description

To Reproduce

Steps to reproduce the behavior:

1. create train_config.yml following doc： https://qlib.readthedocs.io/en/latest/component/rl/quickstart.html
2. run python -m qlib.rl.contrib.train_onpolicy.py --config_path train_config.yml following your document of RL
3. raise the exception