java.util.MissingResourceException' occurred in ApacheFop.Net.DLL

Question

I am trying to use Apache NFOP 0.93 in a C# project to produce a .pdf file.  I am receiving the following error:

"An exception of type 'java.util.MissingResourceException' occurred in ApacheFop.Net.DLL but was not handled in user code Additional information: Resource Bundle not Found" 

The error occurs on the driver.run() line of this code:

using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using System.Xml;
using System.Xml.Xsl;
using System.Xml.XPath;
using org.apache.fop;
using org.apache.fop.apps;
using org.apache.fop.tools;
using org.xml.sax;
using java.io;
using java.util;

XslCompiledTransform xslt = new XslCompiledTransform();
xslt.Load("sample.xsl");
xslt.Transform("sample.xml", "sample.fo");
               
//Generate PDF
FileInputStream streamFO = new FileInputStream("sample.fo");
InputSource src = new InputSource(streamFO);
FileOutputStream streamOut = new FileOutputStream("sample.pdf");
Driver driver = new Driver(src, streamOut);
driver.setRenderer(Driver.RENDER_PDF);
driver.run();
streamOut.close();

Any help is appreciated
Thank You