It appeared an error

AssertionError: Mismatch in X, Y ds

when performing the following step of "getting_started.ipynb"

Y_df_forecast = model.forecast(Y_df_train, X_df= X_df)

Y_df_forecast.rename(columns={'y': 'y_hat'}, inplace=True)

Y_df_forecast.head()

I checked if Y_df_test had the

ds

correctly following Y_df_train and it has.