Hi, For a while I've been out of the habit of adding --index to my command line because I don't use Mapsource to put maps on my devices. However, I wanted to do some experiments and find that I can't make it work with the following command line: java -Xms2g -Xmx2g -Dlog.config=svn/mkgmap/logging.properties -jar svn/mkgmap/dist/mkgmap.jar --family-id=333 --mapname=55555555 --family-name='OSM Ireland' --series-name='OSM Ireland' --description='OSM Ireland' --country-name='IRELAND' --country-abbr='IRL' --latin1 --gmapsupp --net --route --tdbfile --add-pois-to-areas --remove-short-arcs --check-roundabouts --generate-sea=multipolygon --check-roundabout-flares --index --adjust-turn-heading ireland.osm dermot.TYP Dropping --index from he command line fixes things. The error I get is: Exception in thread "main" java.lang.IllegalAccessError: tried to access method uk.me.parabola.imgfmt.app.ImgReader.position()J from class uk.me.parabola.imgfmt.app.trergn.RGNFileReader$RgnOffsets at uk.me.parabola.imgfmt.app.trergn.RGNFileReader$RgnOffsets.<init>(RGNFileReader.java:227) at uk.me.parabola.imgfmt.app.trergn.RGNFileReader$RgnOffsets.<init>(RGNFileReader.java:201) at uk.me.parabola.imgfmt.app.trergn.RGNFileReader.getOffsets(RGNFileReader.java:186) at uk.me.parabola.imgfmt.app.trergn.RGNFileReader.pointsForSubdiv(RGNFileReader.java:71) at uk.me.parabola.imgfmt.app.map.MapReader.pointsForLevel(MapReader.java:107) at uk.me.parabola.mkgmap.combiners.MdrBuilder.addPoints(MdrBuilder.java:170) at uk.me.parabola.mkgmap.combiners.MdrBuilder.onMapEnd(MdrBuilder.java:113) at uk.me.parabola.mkgmap.main.Main.endOptions(Main.java:374) at uk.me.parabola.mkgmap.CommandArgsReader.readArgs(CommandArgsReader.java:124) at uk.me.parabola.mkgmap.main.Main.main(Main.java:122) And my data source is the Geofabrik ireland.osm country extract. Any ideas? Dermot -- -------------------------------------- Iren sind menschlich