Нерешенные ссылки. Android котлин

Question

Я начал изучать Kotlin для Android и создал тестовый проект с 2 фрагментами. Первый фрагмент работает хорошо, и все элементы управления, т.е. текстовые представления кнопок, доступны, но во втором фрагменте ни один из элементов управления не доступен и выдает ошибку неразрешенной ссылки. Вот мой код фрагмента.

import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import kotlinx.android.synthetic.main.frag_registration.*


class FragRegistration : Fragment() {

    private var rootView: View? = null

    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        rootView = inflater.inflate(R.layout.frag_registration, container, false)
        initViews()
        initEvents()

        return rootView
    }

    private fun initViews() {
      rootView.btnRegister.setOnClickListener { // error on this line
            Log.d(TAG,"Button click event")
        }
    }

    private fun initEvents() {

    }



}

Это мой файл макета

<?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"
    android:background="@color/colorWhite"
    tools:context=".FragRegistration">

    <ImageView
        android:id="@+id/companyLogo"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:contentDescription="@null"
        android:src="@mipmap/ic_launcher"
        app:layout_constraintEnd_toStartOf="@+id/guideline2"
        app:layout_constraintStart_toStartOf="@+id/guideline"
        app:layout_constraintTop_toTopOf="parent" />

    <EditText
        android:id="@+id/etMobileNumber"
        android:layout_width="0dp"
        android:layout_height="@dimen/_60sdp"
        android:background="@drawable/line_round_background"
        android:gravity="center"
        android:hint="@string/enter_mobile_num"
        android:inputType="number"
        android:maxLength="11"
        android:maxLines="1"
        android:paddingLeft="@dimen/_8sdp"
        android:paddingRight="@dimen/_8sdp"
        android:textColorHint="@color/colorPrimary"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toStartOf="@+id/guideline2"
        app:layout_constraintStart_toStartOf="@+id/guideline"
        app:layout_constraintTop_toTopOf="parent" />

    <androidx.appcompat.widget.AppCompatImageButton
        android:id="@+id/btnRegister"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="8dp"
        android:layout_marginRight="8dp"
        android:background="?attr/selectableItemBackground"
        app:layout_constraintBottom_toBottomOf="@+id/etMobileNumber"
        app:layout_constraintEnd_toEndOf="@+id/etMobileNumber"
        app:layout_constraintTop_toTopOf="@+id/etMobileNumber"
        app:srcCompat="@drawable/ic_pink_right_arrow" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="@dimen/_5sdp"
        android:gravity="center"
        android:text="@string/pin_via_sms"
        app:layout_constraintEnd_toEndOf="@+id/etMobileNumber"
        app:layout_constraintStart_toStartOf="@+id/etMobileNumber"
        app:layout_constraintTop_toBottomOf="@+id/etMobileNumber" />

    <androidx.appcompat.widget.AppCompatButton
        android:layout_width="wrap_content"
        android:layout_height="@dimen/_25sdp"
        android:layout_marginBottom="@dimen/_10sdp"
        android:background="@drawable/line_round_background"
        android:gravity="center"
        android:paddingLeft="@dimen/_10sdp"
        android:paddingRight="@dimen/_10sdp"
        android:text="@string/not_a_company_user"
        android:textColor="@color/darkGrey"
        app:layout_constraintBottom_toTopOf="@+id/textView3"
        app:layout_constraintEnd_toStartOf="@+id/guideline2"
        app:layout_constraintStart_toStartOf="@+id/guideline" />


    <TextView
        android:id="@+id/textView3"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="@dimen/_8sdp"
        android:gravity="center"
        android:text="@string/mbb_number_reg"
        android:textColor="@color/colorAccent"
        app:layout_constraintBottom_toTopOf="@+id/tvCon"
        app:layout_constraintEnd_toStartOf="@+id/guideline2"
        app:layout_constraintHorizontal_bias="1.0"
        app:layout_constraintStart_toStartOf="@+id/guideline" />

    <TextView
        android:id="@+id/tvCon"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="@dimen/_8sdp"
        android:gravity="center"
        android:text="@string/terms_conditions"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toStartOf="@+id/guideline2"
        app:layout_constraintStart_toStartOf="@+id/guideline" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        app:layout_constraintGuide_begin="@dimen/_12sdp" />

    <androidx.constraintlayout.widget.Guideline
        android:id="@+id/guideline2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        app:layout_constraintGuide_end="@dimen/_12sdp" />

</androidx.constraintlayout.widget.ConstraintLayout>

Я уже добавил расширения kotlin в build.gradle

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.2"
    defaultConfig {
        vectorDrawables.useSupportLibrary = true
        applicationId "com.app.dev"
        minSdkVersion 16
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    --
    --
    --
}

Это полная ошибка

Answer 1

Заменить

import kotlinx.android.synthetic.main.frag_registration.* 

На

import kotlinx.android.synthetic.main.frag_registration.view. *