I downloaded the "Tasky" sample from somewhere but the only button, 'Add Task', doesn't work. Debugging I see that taskListView never gets set as FindViewById returns null. I try to open the TaskDetails axml (I'm really new to android) and it has just the gray rectangle with a message "The Android SDK could not be found. Make sure the path to the SDK ...". That seems strange since it finds the SDK in the options and the app compiles and runs in the emulator just fine.