startup exception

I'm getting the following exception. Any suggestion what I should be looking at: 2006-06-02 15:43:23 StandardWrapperValve[action]: Servlet.service() for servlet action threw exception java.lang.NoSuchMethodError: org.apache.commons.dbcp.BasicDataSourceFactory.crea teDataSource(Ljava/util/Properties;)Ljavax/sql/DataSource; at com.xpn.xwiki.store.DBCPConnectionProvider.configure (DBCPConnectionPr ovider.java:174) at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvi der(ConnectionProviderFactory.java:80) at org.hibernate.cfg.SettingsFactory.createConnectionProvider (SettingsFa ctory.java:349) at org.hibernate.cfg.SettingsFactory.buildSettings( SettingsFactory.java: 58) at org.hibernate.cfg.Configuration.buildSettings(Configuration.java :1509 ) at org.hibernate.cfg.Configuration.buildSessionFactory( Configuration.jav ... Thanks Duke