IntelliJ IDEA 9.0 - unable to select project SDK for Grails application

Question

I'm convinced that I'm just having a bad day and missing something obvious. I'm trying to create a new Grails project in IntelliJ IDEA 9.0 and I am unable to associate it with an SDK. I've tried creating a project from scratch and creating a project from existing sources. In either case, I get to the "Please select project JDK" screen and my only options are:

• JSDK
• IntelliJ IDEA Plugin SDK
• Mobile SDK
• Flex SDK
• AIR SDK
• Flexmojos SDK

When I used IntelliJ IDEA 8.1.3, it would ask me the same thing and I would simply navigate to C:\Grails and everything worked fine. I've even tried adding the SDK in the following locations, but to no avail.

• File -> Project Structure -> Project Settings -> Project SDK -> New
• File -> Project Structure -> Platform Settings -> SDKs -> Add New SDK

I'm missing something really obvious, right?

Answer 1

They Changed the way that this is done in Intellij 9.0. You are going to want to right-click on the Module and click "Add Framework Support"

This will bring up a dialog where you can select a new Groovy SDK. Choose your Grails Location and hit OK.

http://www.jetbrains.com/idea/webhelp/adding-frameworks-support.html

http://www.jetbrains.com/idea/webhelp/frameworks-support.html

Answer 2

Unfortunately, it isn't quite a simple as that. It appears your GROOVY_HOME needs to point to the version of Groovy you actually wish to use, and when defining the Global Groovy library, you need to make sure you add the individual jar files, not the whole jar directory (otherwise IDEA doesn't recognize its a Groovy install).