For assignment I have to take SRTM raster data and created DEM map. I also have to change the projection. I was able to bring SRTM tiff data into ArcMap 10.3. I try reprojecting by going to Project Raster toolbox (Data Management Tools>Projections and Transformations>Raster>Project). I try dragging the data in "Input Dataset or Feature Class" but than recieve the following message: One or more dropped items were invalid and will not be added to the control. It won't list the data in the drop down list.
don't drag and drop, add manually
How do you add it manually?