title: Ambiguous method overloading for method grails.spring.BeanBuilder#registerBeans
body: <p>I'm following Mike Kelly's brilliant tutorial videos but I have been stumped by the following problem. It happens when I add a new Domain Class. I've tried backing out changes and adding a DomainClass with a different name, restarting the IDE, etc. With only one Domain Class I have no error, if I add one the error appears.</p>
  
  <p>I'm working with ggts 3.4.0, Grail 2.3.1, JDK 1.7.0_45.</p>
  
  <pre><code> | Error 2013-11-04 21:56:37,442 [Thread-8] ERROR plugins.AbstractGrailsPluginManager  - Plugin [domainClass:2.3.1] could not reload changes to file [C:\Grails\ProjectTracker\grails-app\domain\projecttracker\EndUser.groovy]: Ambiguous method overloading for method grails.spring.BeanBuilder#registerBeans.
  Cannot resolve which method to invoke for [null] due to overlapping prototypes between:
      [interface org.codehaus.groovy.grails.commons.spring.RuntimeSpringConfiguration]
      [interface org.springframework.beans.factory.support.BeanDefinitionRegistry]
  Message: Ambiguous method overloading for method grails.spring.BeanBuilder#registerBeans.
  Cannot resolve which method to invoke for [null] due to overlapping prototypes between:
      [interface org.codehaus.groovy.grails.commons.spring.RuntimeSpringConfiguration]
      [interface org.springframework.beans.factory.support.BeanDefinitionRegistry]
      Line | Method
  -&gt;&gt; 2980 | chooseMostSpecificParams     in groovy.lang.MetaClassImpl
  </code></pre>