OpenSAML user discussion

the build for the svn code is breaking. so i am using tp1 . i read on this 
list that i need to load the config file before calling builderFactory. but 
when i did i am getting the following error

I am tyring to load the configuration file


File conf = new 
File("/Users/harsha/Code/opensaml-javaconf/saml2-assertion-config.xml");
                Configuration.load(conf);
            XMLObjectBuilderFactory builderFactory = 
Configuration.getBuilderFactory();

  // Get the assertion builder based on the assertion element name
            AssertionBuilder builder = (AssertionBuilder) 
builderFactory.getBuilder(Assertion.DEFAULT_ELEMENT_NAME);

  // Create the assertion
            Assertion assertion = builder.buildObject();

log4j:WARN No appenders could be found for logger 
(org.opensaml.xml.Configuration).
log4j:WARN Please initialize the log4j system properly.
ERROR:  'UndeclaredPrefix: Cannot resolve 'saml2:Action' as a QName: the 
prefix 'saml2' is not declared.'
org.opensaml.xml.ConfigurationException: Unable to parse configuration 
file(s) in /Users/harsha/Code/conf/saml2-assertion-config.xml
        at org.opensaml.xml.Configuration.load(Configuration.java:129)

please help me with this

thanks
harsha