I developed my first 2D Model and wanted to associate a spatially varying land use to the simulation. The problem is that I create Polygons in ARCGIS, exported them with .shp extension, including a column with text as the landuse, but i always get the message:
Can you load the exported shapefile correctly into ArcGIS? Is it in the right projection (i.e. the same one used in RASMapper)?. Sometimes shapefiles can be corrupted due to improper saving, an ArcMap crash, or illegal geometric features.