Android Hello World Exception

Question

I am trying to get this hello world android application working.
I go through this installation process and read about how easy this thing is to get up and running with a

Answer 1

From Eclipse:

Windows => Preferences => Android

1) Ensure your SDK Location is correct

*2) Click "Apply" to populate the list of available SDK(s) for Android

Summary: Setting the SDK location is not enough, if you were to set the location, then click OK without Apply first, you would get the exception "java.lang.IllegalArgumentException: Bad version".