Error when trying to Download Dashboard from Insights: "Looker failed to produce a quality forecasting for the measure" . The same message is displayed when trying to create the Forecasting in the dashboard Visualization.
The behavior is expected: Forecasting cannot be generated it is not enough data and this is what the error message is stating.
- This is a Looker limitation that is also explain in the official Looker documentation: Forecasting In Visualizations - A Forecast Could Not Be Generated
As of now, this is how the Forecasting is working: if there is not enough data for the prediction, the message will be displayed, as a quality forecasting cannot be provided.