Spatial Reference of Input Layers Not Consistent

Discussion created by NZubel on Mar 15, 2018

I am using FEMA's Hazus Flood Model.  I am using the Project Setup and Validation Box for a Riverine Scenario. After selecting okay I receive the following message:


"The spatial reference of the input layers are not consistent. Please use ArcToolbox to assign/project the input map layers to a common spatial reference"


Can someone shed light on what this means and what I need to do? I am still an amateur GIS user.  


Thank you,