I'm having problems compiling Mkgmap, maybe someone here is able to help with that: Before compiling I removed all java stuff, then installed sun-java6-jdk on my ubuntu installation. Then downloaded Mkgmap from SVN, ran 'ant dist' as per Mkgmap wiki page and got the following error:
ant dist Buildfile: build.xml
prepare: compile: [javac] Compiling 317 source files to /home/lambertus/garmin/test/mkgmap/build/classes [javac] failed to read ecj.jar (reconfigure with --with-ecj-jar): /usr/share/java/eclipse-ecj.jar [javac] failed to load org.eclipse.jdt.internal.compiler.batch.Main from ecj.jar: /usr/share/java/eclipse-ecj.jar [javac] java.lang.ClassNotFoundException: org.eclipse.jdt.internal.compiler.batch.Main not found in java.net.URLClassLoader{urls=[file:/usr/share/java/eclipse-ecj.jar], parent=gnu.gcj.runtime.SystemClassLoader{urls=[file:/usr/share/ant/lib/ant-launcher.jar,file:/usr/share/java/xmlParserAPIs.jar,file:/usr/share/java/xercesImpl.jar], parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}} [javac] at java.net.URLClassLoader.findClass(libgcj.so.10) [javac] at java.lang.ClassLoader.loadClass(libgcj.so.10) [javac] at java.lang.ClassLoader.loadClass(libgcj.so.10) [javac] at com.sun.tools.javac.Main.<clinit>(Main.java:91) [javac] at java.lang.Class.initializeClass(libgcj.so.10) [javac] at java.lang.Class.forName(libgcj.so.10) [javac] at org.apache.tools.ant.taskdefs.compilers.CompilerAdapterFactory.doesModernCompilerExist(CompilerAdapterFactory.java:145) [javac] at org.apache.tools.ant.taskdefs.compilers.CompilerAdapterFactory.getCompiler(CompilerAdapterFactory.java:100) [javac] at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1058) [javac] at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:882) [javac] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288) [javac] at java.lang.reflect.Method.invoke(libgcj.so.10) [javac] at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106) [javac] at org.apache.tools.ant.Task.perform(Task.java:348) [javac] at org.apache.tools.ant.Target.execute(Target.java:357) [javac] at org.apache.tools.ant.Target.performTasks(Target.java:385) [javac] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337) [javac] at org.apache.tools.ant.Project.executeTarget(Project.java:1306) [javac] at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41) [javac] at org.apache.tools.ant.Project.executeTargets(Project.java:1189) [javac] at org.apache.tools.ant.Main.runBuild(Main.java:758) [javac] at org.apache.tools.ant.Main.startAnt(Main.java:217) [javac] at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257) [javac] at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104) BUILD FAILED java.lang.ExceptionInInitializerError at java.lang.Class.initializeClass(libgcj.so.10) at java.lang.Class.forName(libgcj.so.10) at org.apache.tools.ant.taskdefs.compilers.CompilerAdapterFactory.doesModernCompilerExist(CompilerAdapterFactory.java:145) at org.apache.tools.ant.taskdefs.compilers.CompilerAdapterFactory.getCompiler(CompilerAdapterFactory.java:100) at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1058) at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:882) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288) at java.lang.reflect.Method.invoke(libgcj.so.10) at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106) at org.apache.tools.ant.Task.perform(Task.java:348) at org.apache.tools.ant.Target.execute(Target.java:357) at org.apache.tools.ant.Target.performTasks(Target.java:385) at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337) at org.apache.tools.ant.Project.executeTarget(Project.java:1306) at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41) at org.apache.tools.ant.Project.executeTargets(Project.java:1189) at org.apache.tools.ant.Main.runBuild(Main.java:758) at org.apache.tools.ant.Main.startAnt(Main.java:217) at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257) at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104) Caused by: java.lang.NullPointerException at com.sun.tools.javac.Main.<clinit>(Main.java:106) at java.lang.Class.initializeClass(libgcj.so.10) ...19 more Total time: 1 second That error suggests that Eclipse needed to be installed, so I installed it. Unfortunately compiling after that resulted in the same error again. The file ecj.jar is not referenced in the build.xml, 'ant clean dist' resulted in the same error. The compiler used is: javac 1.6.0_15 Any ideas?