English

Error: Running the Spatial Analyst interpolation functions IDW, Spline, or Kriging returns 'An invalid field name was used' error

Error Message

This error occurs when running the Spatial Analyst interpolation functions IDW, Spline, or Kriging:

"An invalid field name was used"

Cause

The attribute table of the input data should contain at least one numeric field. When this is not the case, the term <value> appears in the Z value field dropdown list.

Solution or Workaround

If the data is available, create and populate a numeric item in the input dataset.