[androidbrasil-dev] Erro NullPointerException ao Tentar criar 1 projeto com BD

Boa noite, estou tentando criar o meu 1º projeto com BD em Android.
Estou usando como base tutorial:
http://androiddevbr.wordpress.com/2013/02/19/sqlite-banco-de-dados-no-android/


Meu projeto esta neste link:
https://drive.google.com/file/d/0B8cAIXPgopaiZThISFpNYjY3NWc/edit?usp=sharing

Porem na minha classe ContaActivity.java, ao invés de colocar:
VeiculoDAO veiculoDAO =  VeiculoDAO.getInstance(getContext());
coloquei:
contaDAO ContaDAO = contaDAO.getInstance(this); // pois nao existe o metodo getContext()

quando eu abro esta tela, recebo o erro:
03-05 23:01:09.557: D/AndroidRuntime(1190): Shutting down VM
03-05 23:01:09.557: W/dalvikvm(1190): threadid=1: thread exiting with uncaught exception (group=0xb60414f0)
03-05 23:01:09.557: E/AndroidRuntime(1190): FATAL EXCEPTION: main
03-05 23:01:09.557: E/AndroidRuntime(1190): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{eti.victor.gestorfinanceiro/view.contaActivity}: java.lang.NullPointerException
03-05 23:01:09.557: E/AndroidRuntime(1190):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1569)
03-05 23:01:09.557: E/AndroidRuntime(1190):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
03-05 23:01:09.557: E/AndroidRuntime(1190):     at android.app.ActivityThread.access$1500(ActivityThread.java:117)