I tried a different cad program, went to thingverse, grabbed a model, opened it in cura and it worked.
After that, I uninstalled the cura 15.xx that came with my ender. Download the newer version of cura 3.xx, after that I downloaded desingspark mechanical. So far that's how I've been able to get by. Smithy helped me a bunch, hope this helps if not, we'll work it out.