Chapter 10 Crash

I’m getting a crash after following pages 205-208.

The offending lines of code in CrimeFragment are,
mDateButton.setText(mCrime.getDate().toString());
mSolvedCheckBox.setChecked(mCrime.isSolved());

If I comment these lines out the blank crime fragment page presents itself. I’m on a Mac.
Thank you.

Withdrawn, figured it out, sorry for the noise.