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Environment mask ERROR 010422

Question asked by BTLeslie on Nov 7, 2014
Latest reply on Nov 10, 2014 by BTLeslie


I'm doing a python script that does:


outRast = Raster(inRast1) - Raster(inRast2)


I have about 500 of these to process however after about 100 of these the script fails with the warning:

"ERROR 010422: Error in processing the environment mask"


The trouble is that I cannot see anything different in the rasters being processed when the script fails compared to all the ones it has already completed.


I added a shapefile that encolses all the rasters

     arcpy.env.mask = "mask_poly.shp"

but this hasn't helped.  I'm stuck for things to try.