title: grails upgrading 2.4.0 causes Error Compilation error: startup failed
body: <p>I am trying to upgrade from Grails 2.2.3 to Grails 2.4.0. For that I have followed following steps:</p>
  
  <ol>
  <li>using GVM, I have installed grails 2.4.0</li>
  <li>set grails default version to 2.4.0</li>
  <li>then run command to set-grails-version to 2.4.0 in my project directory
  and 
  then updated java to use oracle jdk 7</li>
  </ol>
  
  <p>I am getting the following error. Any suggestion why? </p>
  
  <pre><code>Error Compilation error: startup failed:
  /home/madan/.grails/2.4.0/projects/mainthub/plugins/mail-1.0/src/groovy/grails/plugin/mail/MailMessageContentRenderer.groovy: 21: unable to resolve class org.codehaus.groovy.grails.plugins.PluginManagerHolder
   @ line 21, column 1.
     import org.codehaus.groovy.grails.plugins.PluginManagerHolder
     ^
  
  /home/madan/.grails/2.4.0/projects/mainthub/plugins/resources-1.2/grails-app/taglib/org/grails/plugin/resource/ResourceTagLib.groovy: 6: unable to resolve class org.codehaus.groovy.grails.commons.ConfigurationHolder
   @ line 6, column 1.
     import org.codehaus.groovy.grails.commons.ConfigurationHolder
     ^
  
  /home/madan/.grails/2.4.0/projects/mainthub/plugins/resources-1.2/src/groovy/org/grails/plugin/resource/ResourceProcessor.groovy: 6: unable to resolve class org.codehaus.groovy.grails.plugins.PluginManagerHolder
   @ line 6, column 1.
     import org.codehaus.groovy.grails.plugins.PluginManagerHolder
     ^
  
  /home/madan/.grails/2.4.0/projects/mainthub/plugins/resources-1.2/src/groovy/org/grails/plugin/resource/util/HalfBakedLegacyLinkGenerator.groovy: 3: unable to resolve class org.codehaus.groovy.grails.commons.ConfigurationHolder
   @ line 3, column 1.
     import org.codehaus.groovy.grails.commons.ConfigurationHolder
     ^
  
  /home/madan/.grails/2.4.0/projects/mainthub/plugins/joda-time-1.4/grails-app/taglib/grails/plugin/jodatime/taglib/PeriodTagLib.groovy: 18: unable to resolve class org.codehaus.groovy.grails.commons.ConfigurationHolder
   @ line 18, column 1.
     import org.codehaus.groovy.grails.commons.ConfigurationHolder
     ^
  
  /home/madan/.grails/2.4.0/projects/mainthub/plugins/email-confirmation-2.0.8/grails-app/services/com/grailsrocks/emailconfirmation/EmailConfirmationService.groovy: 24: unable to resolve class org.codehaus.groovy.grails.commons.ConfigurationHolder
   @ line 24, column 1.
     import org.codehaus.groovy.grails.commons.ConfigurationHolder
     ^
  
  /home/madan/.grails/2.4.0/projects/mainthub/plugins/email-confirmation-2.0.8/grails-app/services/com/grailsrocks/emailconfirmation/EmailConfirmationService.groovy: 25: unable to resolve class org.codehaus.groovy.grails.commons.ApplicationHolder
   @ line 25, column 1.
     import org.codehaus.groovy.grails.commons.ApplicationHolder
     ^
  
  /home/madan/.grails/2.4.0/projects/mainthub/plugins/quartz-1.0-RC2/grails-app/conf/QuartzBootStrap.groovy: 18: unable to resolve class org.codehaus.groovy.grails.commons.ConfigurationHolder
   @ line 18, column 1.
     import org.codehaus.groovy.grails.commons.ConfigurationHolder
     ^
  
  /home/madan/.grails/2.4.0/projects/mainthub/plugins/quartz-1.0-RC2/grails-app/conf/QuartzBootStrap.groovy: 31: unable to resolve class org.codehaus.groovy.grails.commons.ConfigurationHolder 
   @ line 31, column 12.
             if(ConfigurationHolder.config?.quartz?.autoStartup) quartzScheduler.start()
                ^
  
  /home/madan/.grails/2.4.0/projects/mainthub/plugins/joda-time-1.4/src/groovy/grails/plugin/jodatime/binding/DateTimeEditor.groovy: 20: unable to resolve class org.codehaus.groovy.grails.commons.ConfigurationHolder
   @ line 20, column 1.
     import org.codehaus.groovy.grails.commons.ConfigurationHolder
     ^
  
  /home/madan/.grails/2.4.0/projects/mainthub/plugins/joda-time-1.4/src/groovy/grails/plugin/jodatime/binding/DateTimeEditor.groovy: 30: unable to resolve class org.codehaus.groovy.grails.commons.ConfigurationHolder 
   @ line 30, column 38.
      @Lazy private ConfigObject config = ConfigurationHolder.config?.jodatime?.format
                                          ^
  
  11 errors
  </code></pre>