[mkgmap-dev] Problem using jar file in a different location

If I move my compiled mkgmap.jar file to a location different than dist folder and run it, I get the error below: Error at line 56, col 58 Bad file format: tanzania.osm.pbf Error parsing file Exception in thread "main" java.lang.NullPointerException at uk.me.parabola.mkgmap.combiners.FileInfo.getFileInfo(FileInfo.java:147) at uk.me.parabola.mkgmap.main.Main.endOptions(Main.java:429) at uk.me.parabola.mkgmap.CommandArgsReader.readArgs(CommandArgsReader.java:126) at uk.me.parabola.mkgmap.main.Main.main(Main.java:114) I have copied osmprotobuf.jar and protobuf.jar to the same location than mkgmap.jar, but it didn't help. Any suggestion how to fix it?