Error installing FinRL: Could not build wheels for box2d-py

Question

I want to run this code https://github.com/AI4Finance-Foundation/FinRL-Tutorials/blob/master/2-Advance/FinRL_Ensemble_StockTrading_ICAIF_2020.ipynb

The problem is that, when I run:

from finrl.config_tickers import DOW_30_TICKER

, it tells me: ModuleNotFoundError: No module named 'finrl'

I tried to do it by following de steps in the point 4.3 of this document: https://finrl.readthedocs.io/_/downloads/en/latest/pdf/, but when I do

git clone https://github.com/AI4Finance-Foundation/FinRL.git

cd FinRL

pip install .

it gives me this error: ERROR: Could not build wheels for box2d-py, which is required to install pyproject.toml-based projects