Error loading UrlMappingsPlugin in Grails

问题

When creating a basic grails plugin and compiling with Maven, I get this error message:

Error loading plugin manager: Could not create a new instance of class [org.codehaus.groovy.grails.plugins.web.mapping.UrlMappingsGrailsPlugin]! (Use --stacktrace to see the full trace)

Grails version 2.4.3

回答1:

The solution to this issue is to add the tomcat plugin (no idea why):

Add this to BuildConfig.groovy:

    build ":tomcat:7.0.55"

Then you may need to regenerate the pom.xml file using grails create-pom.

This appears to be related to this bug.

来源：https://stackoverflow.com/questions/25975437/error-loading-urlmappingsplugin-in-grails