In the eclipse/android AVD, I get "Unfortunately, has stopped" I have checked other Qs about this, but none helped. I assume it is my code that is faulty, because when I comment the code out, it runs fine. However, the android code-checker thingy shows no errors. This is my code: public TextView TextView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); setTextView(); } public void setTextView(){ TextView tv = (TextView); findViewById(R.id.textView1); tv.setText("4"); } I tried this aswell, but the same happened public TextView TextView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); TextView tv = (TextView); findViewById(R.id.textView1); tv.setText("4"); } I'm not sure whether the structure of my code is correct either.