I'm currently writing a java project and I want to read in XML files and if possible receive XML-RPC calls etc.... But I don't know how to install Ant/Xerces/JWDSP completely. I tried it serveral times and got different errors, some packages were completely installed and some not. But it seems that I have a xerces/dom/xalan .jar and a xml-rpc.jar on my harddisk but if I want to use them in ProjectBuilder I get this error message when I want to start the application : "java.lang.NoClassDefFound for class SAXException". Is here anybode who has a working Xerces Java package and maybe even an Apache XML-RPC package ? It would be great if anybode could give me instructions how to install these packages on os x.