[bdbxml] problem validating in c++

Hi,

I am having problems validating an xml file using a schema when I write a small c++ program to open a container in validation mode and then add a document to the container. Whenever i add the xml document to the container I get an error that says "Exception: Error: XML Indexer: Fatal Parse error in document at line 5. char 97. Parse message: An exception occurred! Type:RuntimeException, Message: could not open external entity.". Line 5 is the line containing the schemalocation attribute in my xml document. I know the document and schema are sound as i have validated them using an xml validator. When I open the container and enter the document using the command line instead of a c++ program the operation works perfectly. Below is the code I am using.
Any help would be greatly appreciated.

Thanks,

John

#include <string>
#include <fstream>
#include "dbxml/DbXml.hpp"
using namespace std;
using namespace DbXml;
int main(int argc, char *argv[]) {
 try {

   XmlInputStream * input = NULL;
   string path2DbEnv = "c:/env";
   string theContainer = "simpleExampleData.dbxml";
   string docName = "John2";

   //open a container in the db environment
   DbEnv env(0);
   env.set_cachesize(0, 64 * 1024 * 1024, 1);
   env.open(path2DbEnv.c_str(),
    DB_INIT_MPOOL|DB_CREATE|DB_INIT_LOCK|DB_INIT_LOG|DB_INIT_TXN, 0);
   XmlManager db(&env);

   XmlContainer container = db.openContainer(theContainer, DBXML_ALLOW_VALIDATION);
  
   XmlUpdateContext updateContext = db.createUpdateContext();
   
   //create input
   
   input = db.createLocalFileInputStream("c:/shiporder1.xml");
   
   container.putDocument(docName, input, updateContext, 0);
   XmlUpdateContext uc = db.createUpdateContext();

 
  } catch (XmlException &e) {
  std::cout << "Exception: " << e.what() << std::endl;
  }
 return 0;
}