Kotlin App Crashes on Start with No LOGCAT

Question

I'm trying to learn Kotlin for Android from a slightly outdated book. After a certain step, my app crashes on startup with no errors and no LOGCAT. Tested on emulator and device. I'm sure it's a depreciation issue, but I'm not sure, and I want to learn. Here are my two activities. MainActivity.kt

import android.content.Intent
import android.os.Bundle
import android.os.PersistableBundle
import android.view.View
import android.widget.Button
import android.widget.TextView
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import androidx.lifecycle.ViewModelProvider

private const val KEY_INDEX = "index"

class MainActivity : AppCompatActivity() {

    private lateinit var trueButton: Button
    private lateinit var falseButton: Button
    private lateinit var nextButton: Button
    private lateinit var prevButton: Button
    private lateinit var cheatButton: Button
    private lateinit var questionTextView: TextView
    private lateinit var quizViewModel: QuizViewModel

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        savedInstanceState?.putInt(KEY_INDEX, quizViewModel.currentIndex)
        setContentView(R.layout.activity_main)
        quizViewModel = ViewModelProvider(this)[QuizViewModel::class.java]

        trueButton = findViewById(R.id.true_button)
        falseButton = findViewById(R.id.false_button)
        cheatButton = findViewById(R.id.cheat_button)
        nextButton = findViewById(R.id.next_button)
        prevButton = findViewById(R.id.back_button)
        questionTextView = findViewById(R.id.question_text)


        trueButton.setOnClickListener {
            checkAnswer(true)
        }

        falseButton.setOnClickListener {
            checkAnswer(false)
        }

        nextButton.setOnClickListener {
            quizViewModel.moveToNext()
            updateQuestion()
        }

        prevButton.setOnClickListener {
            quizViewModel.moveToBack()
            updateQuestion()
        }

        cheatButton.setOnClickListener {
            // Start intent
            val answerIsTrue = quizViewModel.currentQuestionAnswer
            val intent = CheatActivity.newIntent(this@MainActivity, answerIsTrue)
            startActivity(intent)
        }

        updateQuestion()
    }

    private fun checkAnswer(userAnswer: Boolean){
        val correctAnswer = quizViewModel.currentQuestionAnswer
        val messageResId = if (userAnswer == correctAnswer) {
            R.string.correct_toast
        } else {
            R.string.incorrect_toast
        }
        Toast.makeText(
            this,
            messageResId,
            Toast.LENGTH_SHORT
        ).show()
    }

    private fun updateQuestion() {
        val questionTextResID = quizViewModel.currentQuestionText
        questionTextView.setText(questionTextResID)
    }


}

and CheatActivity.kt

import android.content.Context
import android.content.Intent
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Button
import android.widget.TextView


private const val EXTRA_ANSWER_IS_TRUE =
        "com.gabecunningham.geoquiz.answer_is_true"

class CheatActivity : AppCompatActivity() {

    private lateinit var answerTextView: TextView
    private lateinit var showAnswerButton: Button

    private var answerIsTrue = false

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_cheat)

        answerIsTrue = intent.getBooleanExtra(EXTRA_ANSWER_IS_TRUE, false)
        answerTextView = findViewById(R.id.answer_text_view)
        showAnswerButton = findViewById(R.id.answer_button)
        showAnswerButton.setOnClickListener {
            val answerText = when {
                answerIsTrue -> R.string.true_button
                else -> R.string.false_button
            }
            answerTextView.setText(answerText)
        }
    }

    companion object {
        fun newIntent(packageContext: Context, answerIsTrue: Boolean): Intent {
            return Intent(packageContext, CheatActivity::class.java).apply {
                putExtra(EXTRA_ANSWER_IS_TRUE, answerIsTrue)
            }
        }

    }
}

Please help me out, I'm really trying to learn this. Thank you!

Quick edit, I should explain where the changes were that caused the issue. It was the code to create the Intent in CheatActivity, and the onClickListener to start the CheatActivity from MainActivity