[Geoserver-users] WCS and application:gml+xml

Hi

I tried a GetCoverage request with outputFormat as application:gml+xml on a the sample nurc__Image_sample , and it’s gave me a correct response.
Then I published my own GeoTiff file (a DEM ) and the same request gave me an empty xml file.

Are there criteria that my geotiff must comply ? like the georeferencement type (ModelTiePoint,…?)

Best regards .