I performed an object-based image analysis using ENVI EX, and each of the classified features were exported as a shapefile. I transferred those shapefiles into ArcMap 10, and tried to intersect them with other shapefiles of the same area that were acquired from GeoBase.
When I try to run the intersect tool, I get an error message stating that the topology of the shapefiles extracted from ENVI EX are invalid. I tried to turn on the topology tool to repair the topology of those shapefiles, but the buttons are greyed out, and I can't seem to click on them. The topology tool does not work for any of the shapefiles that I have.
Any solutions? How I can I fix the topology and run the intersect?