Hi. I have generated a Garmin map from an OSM file of europe. At first, I split the map using splitter --mapid=19051979 --max-nodes=500000 ../geofabrik/europe.osm.gz (max-nodes is small as I got heap problems before with my 2GB system) Then I did: mkgmap --style-file=~/navi/maps/mkgmap.style/ --net --route --code-page=1252 --country-abbr="EU" --tdbfile --overview-mapname=22051979 --family-name="EU" --family-id=21 --series-name="EU" --tdb-v4 ../1905*.osm.gz However, in my first try mkgmap complained about "Array Index Out Of Bound" (I forgot to copy the exact error message). The problem was in RestrictionRelation.java. I did some modifications (patch attached) and mkgmap successfully generated images. Note, I am not a java programmer and I have not really an idea about the "impact" of my patch. It is more or less a workaround. However, I hope someone knows why this happens (empty way?) and can properly fix it. Btw: In a third run I generated gmapsupp.img which works on my Oregon and I can successfully route from Germany to Italy :) -- Thorsten