Toastmasage가 뜨지 않고 이메일 저장도 안돼요

수업 들으면서 그대로 따라했다고 생각했는데 회원가입 버튼을 누르면 토스트메시지도 뜨지않고 데이터도 파이어베이스에 저장이 안되어있네요

build.gradle -project

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath 'com.google.gms:google-services:4.3.15'
    }
}


plugins {
    id 'com.android.application' version '7.3.0' apply false
    id 'com.android.library' version '7.3.0' apply false
    id 'org.jetbrains.kotlin.android' version '1.7.10' apply false
}

build.gradle -app

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

android {
    namespace 'com.mysampleapp'
    compileSdk 33

    defaultConfig {
        applicationId "com.mysampleapp"
        minSdk 28
        targetSdk 33
        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 'androidx.core:core-ktx:1.7.0'
    implementation 'androidx.appcompat:appcompat:1.6.1'
    implementation 'com.google.android.material:material:1.9.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'

    implementation platform('com.google.firebase:firebase-bom:32.0.0')
    implementation 'com.google.firebase:firebase-analytics-ktx'

    implementation 'com.google.firebase:firebase-auth-ktx'
}

MainActivity

package com.mysampleapp

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Button
import android.widget.Toast
import com.google.firebase.auth.FirebaseAuth
import com.google.firebase.auth.ktx.auth
import com.google.firebase.ktx.Firebase

class MainActivity : AppCompatActivity() {

    private lateinit var auth: FirebaseAuth

    override fun onCreate(savedInstanceState: Bundle?) {

        auth = Firebase.auth

        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        val joinBtnClicked=findViewById<Button>(R.id.joinBtn)
        joinBtnClicked.setOnClickListener {auth.createUserWithEmailAndPassword("abc@abc.com", "12345678")
            .addOnCompleteListener(this) { task ->
                if (task.isSuccessful) {
                    Toast.makeText(this,"ok",Toast.LENGTH_SHORT).show()
                } else {
                    Toast.makeText(this,"no",Toast.LENGTH_SHORT).show()
                }
            }
        }
    }
}

auth.createUserWithEmailAndPassword(email, password)
        .addOnCompleteListener(this) { task ->
            if (task.isSuccessful) {
                // Sign in success, update UI with the signed-in user's information
                Log.d(TAG, "createUserWithEmail:success")

            } else {
                // If sign in fails, display a message to the user.
                Log.w(TAG, "createUserWithEmail:failure", task.exception)

            }
        }

class MainActivity : AppCompatActivity() {

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

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