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Error: Failed to evaluate the calculator equation

Error Message

Running the POINTDENSITY Spatial Analyst function in the Raster Calculator on a coverage produces this error:

"Failed to evaluate the calculator equation."

Cause

Coverages are not supported in the Raster Calculator.

Solution or Workaround

  • Use the Density Spatial Analyst dialog box, or the GRID prompt in Workstation.
  • Alternatively, convert the coverage to a shapefile and use this in the Raster Calculator:

    1. Right-click the coverage in the table of contents of ArcMap.
    2. Click Data.
    3. Click Export Data.