I included revision 3997 in my main build and am now getting a crash as follows when I build my GB map (I don't get the crash on the small bit of test data I previously used): java.lang.NoSuchMethodError: uk.me.parabola.mkgmap.osmstyle.eval.BinaryOp.setFirst(Luk/me/parabola/mkgmap /osmstyle/eval/Op;)V at uk.me.parabola.mkgmap.osmstyle.eval.ExpressionReader.runOp(ExpressionReader. java:242) at uk.me.parabola.mkgmap.osmstyle.eval.ExpressionReader.readConditions(Expressi onReader.java:98) at uk.me.parabola.mkgmap.osmstyle.RuleFileReader.loadFile(RuleFileReader.java:1 24) at uk.me.parabola.mkgmap.osmstyle.RuleFileReader.load(RuleFileReader.java:95) at uk.me.parabola.mkgmap.osmstyle.StyleImpl.readRules(StyleImpl.java:285) at uk.me.parabola.mkgmap.osmstyle.StyleImpl.<init>(StyleImpl.java:155) at uk.me.parabola.mkgmap.osmstyle.StyleImpl.readStyle(StyleImpl.java:545) at uk.me.parabola.mkgmap.reader.osm.OsmMapDataSource.createConverter(OsmMapData Source.java:333) at uk.me.parabola.mkgmap.reader.osm.OsmMapDataSource.setupHandler(OsmMapDataSou rce.java:226) at uk.me.parabola.mkgmap.reader.osm.OsmMapDataSource.parse(OsmMapDataSource.jav a:168) at uk.me.parabola.mkgmap.reader.osm.OsmMapDataSource.load(OsmMapDataSource.java :150) at uk.me.parabola.mkgmap.main.MapMaker.loadFromFile(MapMaker.java:154) at uk.me.parabola.mkgmap.main.MapMaker.makeMap(MapMaker.java:52) at uk.me.parabola.mkgmap.main.Main$1.call(Main.java:263) at uk.me.parabola.mkgmap.main.Main$1.call(Main.java:259) Looking at ExpressionReader.runOp, this calls BinaryOp binaryOp = (BinaryOp) op; binaryOp.setFirst(arg1); binaryOp.setSecond(arg2); However, BinaryOp does not appear to have an implementation of setFirst or getFirst. Neither BinaryOp nor ExpressionReader were changed in this handover, so this looks like a bug that was already there. Regards, Mike