When running Time Series Forecasting (Prophet) analytics, it fails with "Prior scale must be > 0" error

Problem

When running Time Series Forecasting (Prophet) analytics, you may encounter the following error:

Prior scale must be > 0

Solution

This error occurs when the Strength of Seasonality property is set to 0.
To fix it, enter a value greater than 0 in the Strength of Seasonality field for your Prophet analytics.