[HELP]Exception in ServerPagesGenerator.generate()

[Lars Müller]

Description:org.apache.cocoon.ProcessingException: Exception in ServerPagesGenerator.generate(): java.lang.RuntimeException: Could not get the datasource org.apache.avalon.excalibur.datasource.NoValidConnectionException: No valid JdbcConnection class available   Please help me! I've made everything but it doesn't work. I have an JDBC Driver in the JDK1.4, but I don't know if this is the right one. Please let me know why I get this Exception   Best Regards   Lars