I just setup a sample project to check out android development, but got weird error related to 'crunch' command. How is that possible with fresh sdk tools and all included eclipse package setup. It was very discouraging, but i decide to figure out a way to at least run some demos and see "hello world" in different platform versions.
Solution: You need to install this ADT 14. Yes. you need to uninstall all those old Android SDK and try again:)
I checked all necesary items in the Eclipse window. After downloading all those libraries, you should setup the SDK directory for android.
At the end, you should see references to correct version of ADT. "Hello world" will work fine now. You can create new projects from sample Android apps. It really helps to learn overall design.