How to install Spring Security Core Plugin 2.0 in Grails

1. in BuildConfig.groovy, add:

compile ':spring-security-core:2.0-RC2'

and maven repository:

mavenRepo 'http://repo.spring.io/milestone'

    note: if not set this maven repository, you will get error:

---

    org.springframework.security#spring-security-core;3.2.0.RC1: not found

---

2. run

$ grails compile

    note: if skip this step you will get error:

---

    Error org.codehaus.groovy.grails.cli.ScriptNotFoundException

---

3. then run

$ grails s2-quickstart com.testapp User Role

4. done.

Failed to run new Grails project after upgrade to Grails2.3

after upgrade to Grails 2.3, when you create a new default Grails project, then run-app, it will failed and get error: :

• Groovy: compiler mismatch Project level is: 2.1 Workspace level is 2.0
• No such property: descriptor for class: org.codehaus.groovy.grails.plugins.GrailsPluginInfo
• No such property: version for class: org.codehaus.groovy.grails.plugins.GrailsPluginInfo

How to solve it? here is it:

1. open Dashboard
2. install Groovy 2.1 Eclipse Extension
3. restart GGTS 
4. (might need clean your project after restart)
5. open eclipse's Run - Run configuarations, then click "Run" button