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What happens when a deleting a field from a raster dataset?

Question asked by jlwynia on Mar 3, 2018
Latest reply on Mar 12, 2018 by Dan_Patterson

I am relatively new to GIS and attempted to delete a field from a raster dataset (land cover) in a map package; the result of a serious error message tells me this is not a good thing to do.

 

I deleted the map package and re-downloaded the map package from the original source; however, the "Open Attribute Table" option for this raster persists in being gray so I cannot open the attribute table to view it.

 

I don't think I would have affected the original so I am not sure why this problem exists after re-downloading the original map package. Does anyone know what I can do to troubleshoot this issue?

 

The map package represents demo materials for an online GIS course I am taking. The map includes a relatively small area of a DEM overlaying a "nlcd_2011_land_cover_extracted" raster which had 15 values.

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