If you are just trying to see your drawing better, typing a specific integer is usually the wrong approach.
But there is a deeper philosophical weight to the "integer" in Computer-Aided Design. In the physical world, there is no such thing as a perfect integer. A wall is never exactly 10 feet long; it is 10 feet plus or minus the thickness of a coat of paint, the wavering of a tape measure, the humidity in the air. The physical world is analog; it bleeds at the edges.
: If this error appears while you are hatching, it may relate to the maximum number of hatch lines AutoCAD can generate.