A project I just started working on uses JFlex, and when I try and compile the project using ant, I get the following error:
java.lang.NoSuchMethodError: java_cup.runtime.lr_parser.getSymbolFactory()Ljava_cup/runtime/SymbolFactory
What's causing this? I have the JFlex jar downloaded, and am using it in my project.
Turns out to use the jflex ant tasks, you need to download JFlex from here, unzip it somewhere, then copy the jflex-1.6.1/lib/* files to your ant/lib/ folder, and try again.