I'm using Grails 3.0.1 with IntelliJ Idea and I'm trying to use Spring Security plugin on my project.

I know that old spring-seurity-core plugin is not compatible with Grails 3.0 version. Thus I've tried to follow this tutorial: <http://spiesdavid.blogspot.fi/2015/03/grails-3-app-with-security-part-1.html>

I've added the compile line in build.gradle file in dependencies. I've also added the logger line in logback.groovy file.

Problems start after that. There is no such file as SecurityConfiguration.groovy and there is no org.springframework.security package so I can't import them and it gives an error. So I can't create the file either.