Il 08/02/2016 12:17, Victor Olaya ha scritto: > looks like ntv2 provider hasn't updated its algorithms to the latest > changes in GDAL provider? Right, deactivating it generates another error, and QGIS hangs. All the best, and thanks. -- Paolo Cavallini - www.faunalia.eu QGIS & PostGIS courses: http://www.faunalia.eu/training.html