I try to mask a raster with gdalwarp and I always get the answer: cannot compute bounding box of cutline. what is wrong with my cutline shapefile? or what requirements should it have to work?
Make sure that raster file and shapefile have the same CRS. The raster should be a tif, with georeference stored inside, and the shapefile must be a polygon. Make sure that the extent of the raster and shapefile fit together.
The CRS should be suitable, e.g. it should not include the poles when using a mercator projection, and no part should be on the back of the globe for transverse mercator or UTM.
LCC projection might have similar restrictions.