My project compiled fine without any problems. I went out of Eclipse and went back inside and get this error. These folders do not exist in my project. I do not think are part of Grails, it appears that the STS creates them. What is the problem?
STS 2.9, Grails 2.0.1
Thank you very much advanced
Right-click on the project node in the project tree and select Grails Tools | Refresh Dependencies. It will reconfigure the classpath and source folders based on the installed plugins.