Hi Dan,
Yes that is the tool I am talking about, I've used it previously and had no problems so it is odd that this is happening now. I am using climate data (max temp, precip, wind speed, etc.) as explanatory variables and am having the issue when using the trained model to predict. The data it is rejecting are just future rasters of the projected climate variables that correspond with the variables that the model was trained with (for example, max temp for 2030 under RCP 4.5 scenario). All the data is within the same geodatabase that I have been using for this project and that I have had no issues with prior. The screen capture attached to this reply shows where I am inputting the future corresponding raster data, but the tool is rejecting it.
Thanks for the response.