AndroidStudio カメラライブラリFotoapparatを用いてカメラ画像を表示しようと試みるも、エラーでアプリが落ちてしまう。

前提・実現したいこと

AndroidStudioでFotoapparatライブラリを用いてカメラから取得した画像をImageViewに表示するプログラムをKotlinで作成しています。
fotoapparat.takePicture()で得た写真データをimageViewに表示するプログラムを書いています。
エラーが発生していないのを確認し、実機を用いてアプリを起動したのですが、一瞬画面が表示された後にアプリが落ちてしまいました。
エラーメッセージでは、カメラについて初期化されていないという例外が発生しています。
上記の例外が原因でアプリが落ちてしまっているのだと考えているのですが、どう修正すれば良いのかわかりません。
ご教授頂ける方がいましたら、宜しくお願い致します。

発生している問題・エラーメッセージ

    Process: com.example.cameraapp_usefotoapprat_bykotlin, PID: 11411
    java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:504)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965)
     Caused by: java.lang.reflect.InvocationTargetException
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965) 
     Caused by: java.util.concurrent.ExecutionException: java.util.concurrent.ExecutionException: kotlin.UninitializedPropertyAccessException: lateinit property camera has not been initialized
        at java.util.concurrent.FutureTask.report(FutureTask.java:123)
        at java.util.concurrent.FutureTask.get(FutureTask.java:193)
        at io.fotoapparat.result.PendingResult.await(PendingResult.kt:55)
        at com.example.cameraapp_usefotoapprat_bykotlin.MainActivity.onStart(MainActivity.kt:39)
        at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1391)
        at android.app.Activity.performStart(Activity.java:7348)
        at android.app.ActivityThread.handleStartActivity(ActivityThread.java:3138)
        at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:180)
        at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:165)
        at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:142)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:70)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1948)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:7050)
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965) 
     Caused by: java.util.concurrent.ExecutionException: kotlin.UninitializedPropertyAccessException: lateinit property camera has not been initialized
        at java.util.concurrent.FutureTask.report(FutureTask.java:123)
        at java.util.concurrent.FutureTask.get(FutureTask.java:193)
        at io.fotoapparat.result.PendingResult$transform$transformTask$1.call(PendingResult.kt:36)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.lang.Thread.run(Thread.java:764)
     Caused by: kotlin.UninitializedPropertyAccessException: lateinit property camera has not been initialized
        at io.fotoapparat.hardware.CameraDevice.takePhoto(CameraDevice.kt:139)
        at io.fotoapparat.routine.photo.TakePhotoRoutineKt$takePhoto$1.invokeSuspend(TakePhotoRoutine.kt:15)
        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
        at kotlinx.coroutines.DispatchedTask$DefaultImpls.run(Dispatched.kt:235)
        at kotlinx.coroutines.DispatchedContinuation.run(Dispatched.kt:81)
        at kotlinx.coroutines.EventLoopBase.processNextEvent(EventLoop.kt:123)
        at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:69)
        at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:45)
        at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source:1)
        at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:35)
        at kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source:1)
        at io.fotoapparat.routine.photo.TakePhotoRoutineKt.takePhoto(TakePhotoRoutine.kt:12)
        at io.fotoapparat.Fotoapparat$takePicture$future$1.invoke(Fotoapparat.kt:119)
        at io.fotoapparat.Fotoapparat$takePicture$future$1.invoke(Fotoapparat.kt:34)
        at io.fotoapparat.concurrent.CameraExecutor$execute$future$1.call(CameraExecutor.kt:26)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 
        at java.lang.Thread.run(Thread.java:764)

該当のソースコード

MainActivity.kt


package com.example.cameraapp_usefotoapprat_bykotlin


import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.ImageView
import android.widget.TextView
import io.fotoapparat.Fotoapparat
import io.fotoapparat.parameter.ScaleType
import io.fotoapparat.selector.back
import kotlinx.android.synthetic.main.activity_main.*


class MainActivity : AppCompatActivity() {
    lateinit var fotoapparat: Fotoapparat
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        fotoapparat = Fotoapparat(
            context = this,
            view = cameraview,
            scaleType = ScaleType.CenterCrop,
            lensPosition = back()
        )
    }

    override fun onStart() {
        super.onStart()
        fotoapparat.start()
         var photoResult = fotoapparat.takePicture()
         var result = photoResult.toBitmap().await()
        var imageview :ImageView=findViewById(R.id.imageView)
        imageview.setImageBitmap(result.bitmap)


    }

    override fun onResume() {
        super.onResume()


    }
    override fun onStop() {
        super.onStop()
        fotoapparat.stop()
    }
}

activity_main.xml


<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <io.fotoapparat.view.CameraView
        android:id="@+id/cameraview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="1.0">

    </io.fotoapparat.view.CameraView>
</androidx.constraintlayout.widget.ConstraintLayout>


build.gradle(App)


apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.3"
    defaultConfig {
        applicationId "com.example.cameraapp_usefotoapprat_bykotlin"
        minSdkVersion 28
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.core:core-ktx:1.0.2'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'io.fotoapparat:fotoapparat:2.7.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
}


build.gradle(Project)


// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    ext.kotlin_version = '1.3.72'
    repositories {
        google()
        jcenter()
        
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.5.3'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}