Netbeans 6.7.1 error – A platform target has to be selected

In a couple of days I will receive a new Android phone and I wanted to experiment a bit with developing my own application(s) for it.

So I downloaded and installed the Android SDK from Google and installed the Netbeans Android plugin.
After installing the plugin I needed to add the Android Platform to the list of Java Platforms in Netbeans.

While going through the wizard for adding the platform I ran into the following problem:

Fortunately restarting Netbeans fixed it for me!