I don't know if it helps anyone but I've just found a solution to a problem that has popped up from time to time on my machine when building FOP. Sometimes, after building FOP, the only thing I would get after invoking the FOP command-line was:
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/fop/apps/Fop If you experience this comment out the following lines in build.xml, delete build/fop.jar and rerun the FOP build: <attribute name="Main-Class" value="${main.class}"/> <attribute name="Class-Path" value="${manifest-classpath}"/> (found in the "package" target) I've no idea what the real problem is but at least I've got a work-around. I thought I should share this. Jeremias Maerki