class not found FOP

Hi so i am trying to use FOP to turn an xml file into pdf and i keep on running into errors, right now i have the error ``` Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/xmlgraphics/io/ResourceResolver at org.apache.fop.apps.FopConfParser.<init>(FopConfParser.java:122) at org.apache.fop.apps.FopFactory.newInstance(FopFactory.java:132) at run.ExampleFO2PDF.main(ExampleFO2PDF.java:62) ``` i have the FOP library in the build path as well as xmlgraphics and commons logging and Avalon framework This is the code i am trying to run ``` import java.io.BufferedOutputStream; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import javax.xml.transform.Result; import javax.xml.transform.Source; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerConfigurationException; import javax.xml.transform.TransformerException; import javax.xml.transform.TransformerFactory; import javax.xml.transform.sax.SAXResult; import javax.xml.transform.stream.StreamSource; import org.apache.fop.apps.*; import org.xml.sax.SAXException; public class pdf{ public static void main(String[] args) throws SAXException, IOException, TransformerException { FopFactory fopFactory = FopFactory.newInstance(new File(".")); OutputStream out = new BufferedOutputStream(new FileOutputStream(new File("D:/temp/myfile.pdf"))); try { Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, out); TransformerFactory factory = TransformerFactory.newInstance(); Transformer transformer = factory.newTransformer(); // identity transformer Source src = new StreamSource(new File("D:/temp/test.xml")); Result res = new SAXResult(fop.getDefaultHandler()); transformer.transform(src, res); } finally { //Clean-up out.close(); } } } ```