I am getting these for yesterday's finland.osm.bz2 and mkgmap r1499. I suspect that these are coming from the branches/mp merge: SEVERE (MultiPolygonRelation): Multipolygon http://www.openstreetmap.org/browse/relation/5828 contains intersected ways This relation or the containing points have not been changed recently. It looks OK to me. It would be nice if the message gave a point where mkgmap thinks that the ways are intersecting, like this: "Multipolygon .../relation/5828 contains intersected ways at http://www.openstreetmap.org/?mlat=60.1604765&mlon=24.9544602&zoom=18" (I am just picking a random node in the above building multipolygon). I still can't view the gmapsupp.img because of a NullPointerException: ... SEVERE (MultiPolygonRelation): Multipolygon http://www.openstreetmap.org/browse/relation/301046 contains intersected ways SEVERE (MultiPolygonRelation): Multipolygon http://www.openstreetmap.org/browse/relation/341061 contains intersected ways Exception in thread "main" java.lang.NullPointerException at uk.me.parabola.tdbfmt.OverviewMapBlock.setArea(OverviewMapBlock.java:100) at uk.me.parabola.mkgmap.combiners.TdbBuilder.addToTdb(TdbBuilder.java:114) at uk.me.parabola.mkgmap.combiners.TdbBuilder.onMapEnd(TdbBuilder.java:103) at uk.me.parabola.mkgmap.main.Main.endOptions(Main.java:370) at uk.me.parabola.mkgmap.CommandArgsReader.readArgs(CommandArgsReader.java:124) at uk.me.parabola.mkgmap.main.Main.main(Main.java:122) Best regards, Marko