Version 1689 was commited by steve on 2010-09-14 16:09:50 +0100 (Tue, 14 Sep 2010) BRANCH: binfmt If the required protobuf jar files are not present, then don't give any errors. You will simply be unable to read the binary format. Make java -jar mkgmap.jar work if the jars are placed in the same directory as the mkgmap.jar