Hi I got this error if i build a map around DE-Starnberg Time started: Thu Apr 24 20:50:22 CEST 2014 java.lang.AssertionError at uk.me.parabola.imgfmt.app.net.RouteRestriction.<init>(RouteRestriction.java:88) at uk.me.parabola.imgfmt.app.net.RoadNetwork.addRestriction(RoadNetwork.java:536) at uk.me.parabola.mkgmap.general.MapDetails.addRestriction(MapDetails.java:131) at uk.me.parabola.mkgmap.reader.osm.RestrictionRelation.addRestriction(RestrictionRelation.java:535) at uk.me.parabola.mkgmap.osmstyle.StyledConverter.end(StyledConverter.java:495) at uk.me.parabola.mkgmap.reader.osm.ElementSaver.convert(ElementSaver.java:248) at uk.me.parabola.mkgmap.reader.osm.o5m.O5mBinMapDataSource.load(O5mBinMapDataSource.java:53) at uk.me.parabola.mkgmap.reader.osm.OsmMapDataSource.load(OsmMapDataSource.java:127) at uk.me.parabola.mkgmap.main.MapMaker.loadFromFile(MapMaker.java:167) at uk.me.parabola.mkgmap.main.MapMaker.makeMap(MapMaker.java:63) at uk.me.parabola.mkgmap.main.Main$1.call(Main.java:220) at uk.me.parabola.mkgmap.main.Main$1.call(Main.java:216) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) Time finished: Thu Apr 24 20:50:54 CEST 2014 Total time taken: 31241ms last entry in mkgmap.log.0 2014/04/24 20:50:53 Warnung (RoadNetwork): /home/bernd/map_build/tiles/65020018.o5m: Turn restriction (no_u_turn) http://www.openstreetmap.org/browse/relation/2254003 (at http://www.openstreetmap.org/?mlat=48.119082&mlon=11.583557&zoom=17) the angle of the from and to way don't match the restriction http://www.openstreetmap.org/relation/2254003 link to mapdata http://files.mkgmap.org.uk/download/204/65020018.o5m Bernd