I am installing the Android SDK along with Eclipse in mac os. Whenever I try to start a new project development I get an error location of the android sdk has not been s
I've had the same problem on Eclipse Juno.
No "Welcome page" appeared, I could not create a project, compilation didn't work and "Graphical layout" didn't work.
I have fixed it: Window > Preferences > General > Startup and shutdown: Check "Android development toolkit"
Reestart Eclipse.
Of course you have to be configured this: Window - Preferences - Android - SDK Location and setup SDK path.