the raster layer:.... doesn't have attribute table??

[Hoàng Bùi Huy]

hello everybody!

when i chose the land use grid in arcswat, the error appear: "the raster layer:.... doesn't have attribute table". This error also appear in soil data. 

(i think this error is about my LU/Soil map (this map i use in mwswat is ok) , but i don't know how to fix this. 

Could you plz show me how to fix this error

Thanks so much

[Katie Merriman]

Most likely there is an error with how your rasterswere created.  To added an attributes table to your layers in ArcGIS, under the the Data Management Tools, Raster toolset, choose the Build Raster Attribute Table tool.

Here is the help page from ESRI:
http://resources.arcgis.com/en/help/main/10.1/index.html#//0017000000m2000000