Map Algebra Error

Discussion created by JimMeuse on Jun 11, 2013
Latest reply on Jun 18, 2013 by curtvprice
I have created a grid by combining several smaller grids; there are a few gaps of NoData along the boundaries of some of the adjacent grids.  I want to use the Raster Calculator to fill in the gaps, and tried the following expression:

Con(IsNull("Mosaic"), FocalStatistics("Mosaic", NbrRectangle(3,3,"CELL"), "MEAN"), "Mosaic")

(which is based on an example I found in this forum).  But I am getting error 000539 "error running expression: rcexec()

Is there something I am missing here?