Multivariate Time Series Prediction on my Data

Dear Sir/Madam,

I am trying to learn and use KNIME for data prediction. I have downloaded an exmple named “MultivariateTimeSeriesRNNKeras_Training.knwf” from KNIME Community Hub and then modified it so that it can read my CSV file. My CSV file contains only two columns: Date (yyyy-mm-dd) and number (price).

However, the execution gets stuck at “Keras Network Learner” Module with an error message “An error occurred while trying to launch Python: Could not start Python” shown up. Is this meant that I need to create Python Conda Environment in order for Keas related modules to work properly?

Thanks in advance.