Hi there, i got the following error from mkgmap (mkgmap-r1914): Exception in thread "main" java.lang.AssertionError at uk.me.parabola.imgfmt.sys.Directory.sync(Directory.java:160) at uk.me.parabola.imgfmt.sys.ImgFS.sync(ImgFS.java:230) at uk.me.parabola.imgfmt.sys.ImgFS.close(ImgFS.java:240) at uk.me.parabola.mkgmap.combiners.GmapsuppBuilder.onFinish(GmapsuppBuilder.java:124) at uk.me.parabola.mkgmap.main.Main.endOptions(Main.java:419) at uk.me.parabola.mkgmap.CommandArgsReader.readArgs(CommandArgsReader.java:126) at uk.me.parabola.mkgmap.main.Main.main(Main.java:129) adding: germany.gmapsupp.img (deflated 27%) Is there anybody, who can help me to isolate this error? Here are the calling parameters: java -Xmx4000M -enableassertions -jar mkgmap.jar -c /osm/mkgmap.conf \ --style-file=/osm/styles \ --description="germany" \ --country-name=germany \ --country-abbr=D \ --family-id=59 \ --product-id=1 \ --area-name=D \ --overview-mapname=germany \ --mapname=59000000 \ --generate-sea=extend-sea-sectors,close-gaps=2000 \ --series-name=OSM \ --family-name=OSM \ --latin1 \ --lower-case \ --draw-priority=25 \ --add-pois-to-areas \ --net \ --route \ --max-jobs \ --make-opposite-cycleways \ --tdbfile \ --index \ --remove-short-arcs \ --add-pois-to-areas \ --adjust-turn-headings \ --report-similar-arcs \ --link-pois-to-ways \ --check-roundabouts \ --check-roundabout-flares \ --gmapsupp \ --make-poi-index \ --code-page=1252 \ --charset=windows-1252 \ --verbose \ ../*.osm.gz \ ../59000000.TYP cheers Michael