Google App Engine plugin on NetBeans 6.9.1

I followed the instructions on this site: Getti开发者_StackOverflow社区ng Started With Google App Engine and NetBeans.

When I try to add a Google App Engine server, I correctly point it to the .app file on my computer. But it still complains to "Provide a valid Google App Engine location". Why is this so? Which location does the plug-in want?

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I downloaded the sdk zip file from google, http://googleappengine.googlecode.com/files/appengine-java-sdk-1.7.3.zip, and then unzipped the file into a java sandbox subdirectory of my home directory. I then pointed to the unzipped directory structure and it worked.

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I'm not familiar with netbeans, but it appears it wants a path to the App Engine SDK. This is a subfolder of the app, /Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine.