110049: You must have the Spatial Analyst extension and an Advanced License to create this Density Surface output.

Description

This tool includes an optional output parameter that uses the Spatial Analyst extension. This extension must be enabled in the application in which you are using it. The Density Surface will be clipped to the raster analysis mask specified in the environment settings. If no raster mask is specified, you will need an Desktop Advanced license, as the output raster layer will be clipped to a convex hull around the Input Features.