Android Studio – Default FirebaseApp is not initialized in this process com.example.example. Make sure to call FirebaseApp.initializeApp(Context) first

My problem is that when i want to press the button it should show the image from firebase. But every time the app crashes with this error "Default FirebaseApp is not initialized in this process com.example.example. Make sure to call FirebaseApp.initializeApp(Context) first."

Her’s my Main Activity

package com.nktschmitt.trailercheck

import android.app.Application
import android.content.Context
import android.graphics.BitmapFactory
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Button
import android.widget.ImageView
import android.widget.Toast
import com.google.firebase.FirebaseApp
import com.google.firebase.ktx.Firebase
import com.google.firebase.storage.FirebaseStorage
import java.io.File
import com.google.firebase.FirebaseApp.initializeApp as initializeApp1

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


        val button: Button = findViewById(R.id.button)


        button.setOnClickListener {

            val image: ImageView = findViewById(R.id.rImage)
            val storageRef = FirebaseStorage.getInstance().reference.child("image/a.jpg")

            val localfile = File.createTempFile("tempImage", "jpg")
            storageRef.getFile(localfile).addOnSuccessListener {

                val bitmap = BitmapFactory.decodeFile(localfile.absolutePath)
                image.setImageBitmap(bitmap)

            }.addOnFailureListener {


                Toast.makeText(this, "Failed", Toast.LENGTH_SHORT).show()
            }


        }

    }
}

Her’s my Project Gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    ext.kotlin_version = "1.5.21"
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath "com.android.tools.build:gradle:4.2.1"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath 'com.google.gms:google-services:4.3.9'
    }
}

allprojects {
    repositories {
        google()
        mavenCentral()
    }
}

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

Her’s my App Gradle

plugins {
    id 'com.android.application'
    id 'kotlin-android'
    id 'com.google.gms.google-services'
}

android {
    compileSdkVersion 30
    buildToolsVersion "30.0.3"

    defaultConfig {
        applicationId "com.nktschmitt.trailercheck"
        minSdkVersion 18
        targetSdkVersion 30
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    kotlinOptions {
        jvmTarget = '1.8'
    }
}

dependencies {

    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    implementation 'androidx.core:core-ktx:1.6.0'
    implementation 'androidx.appcompat:appcompat:1.3.1'
    implementation 'com.google.android.material:material:1.4.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
    implementation 'com.google.firebase:firebase-storage-ktx:20.0.0'
    testImplementation 'junit:junit:4.+'
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
}