textView setText() NullPointerException

Question

I have an almost completely Vanilla App. All I\'m trying to do is change the text of a textView, but it gives me a NullPointerException. I have no XML configuration, no added me

Answer 1

You are giving setContentView() the wrong layout if your XML is actually declared as fragment_main. That is why the controls are currently null.

// The layout file is not correct.
setContentView(R.layout.activity_second);