Tomcat SEVERE: Error listenerStart - Debugging.From my travels across Google, this error is common. In Grails applications it is almost always from a bad datasource.groovy file. This error is the non descriptive string you receive when deploying your servlet (Grails, Spring, Otherwise) to tomcat (probably version 5.5 or higher). The servlet probably runs fine in development mode on your machine. How do we debug it? Read on. Lets start by getti
