20015: Layer's data source will be converted to a file geodatabase
The layer's data source will be converted to a file geodatabase raster instead of its current format.
Solutions
Convert the raster to a supported format.
Alternatively, remove the layer from your package.
More information
The following raster layer formats will be converted into a file geodatabase. Some formats may contain additional content and information within the raster that cannot be packaged.
Raster formats converted to file geodatabase:
ARC Digitized Raster Graphic Format (ADRG)
Compressed ARC Digitized Raster Graphic Format (CADRG)
Controlled Image Base (CIB)
Raster Product Format (RPF)