Ошибка с cardview

При запуске всплывающего окна cardview приложение вылетает.

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



android {
    compileSdk 32

    defaultConfig {
        applicationId "com.example.kanlane"
        minSdk 21
        targetSdk 32
        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
    }
}

dependencies {

    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
    implementation 'com.google.firebase:firebase-database:20.0.4'
    implementation 'com.google.firebase:firebase-auth:21.0.3'
    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
    implementation 'com.google.firebase:firebase-core:20.1.2'
    implementation 'com.google.firebase:firebase-database:20.0.4'
    implementation 'com.android.support:design'
    implementation 'com.rengwuxian.materialedittext:library:2.1.4'
    implementation 'uk.co.chrisjenx:calligraphy:2.3.0'
    implementation 'com.android.support:cardview-v7:21.+'
    implementation 'com.android.support:recyclerview-v7:21.+'
    implementation 'com.google.android.material:material:1.6.0'



}
apply plugin: 'com.google.gms.google-services'

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Cardview
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/bgregist"
    app:cardElevation="2dp">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="20dp"
        android:orientation="vertical">




        <com.rengwuxian.materialedittext.MaterialAutoCompleteTextView
            android:id="@+id/email_field"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="@string/email_register_hint"
            android:inputType="textEmailAddress"
            android:text=""
            android:textColor="@color/design_default_color_primary"
            android:textColorHint="@color/design_default_color_primary_dark"
            android:textSize="20sp"
            android:layout_marginTop="30dp"

            app:met_primaryColor="#982360"
            app:met_baseColor="#0056d3"
            app:met_errorColor="#ddaa00"
            app:met_floatingLabel="none"
            app:met_singleLineEllipsis="true"
            />

        <com.rengwuxian.materialedittext.MaterialAutoCompleteTextView
            android:id="@+id/password_field"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="@string/password_register_hint"
            android:inputType="textPassword"
            android:text=""
            android:textColor="@color/design_default_color_primary"
            android:textColorHint="@color/design_default_color_primary_dark"
            android:textSize="20sp"
            android:layout_marginTop="30dp"

            app:met_primaryColor="#982360"
            app:met_baseColor="#0056d3"
            app:met_errorColor="#ddaa00"
            app:met_floatingLabel="none"
            app:met_singleLineEllipsis="true"
            />

        <com.rengwuxian.materialedittext.MaterialAutoCompleteTextView
            android:id="@+id/name_field"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@drawable/bgregist"
            android:hint="@string/name_register_hint"
            android:inputType="textPersonName"
            android:text=""
            android:textColor="@color/design_default_color_primary"
            android:textColorHint="@color/design_default_color_primary_dark"
            android:textSize="20sp"
            android:layout_marginTop="30dp"

            app:met_baseColor="#0056d3"
            app:met_errorColor="#ddaa00"
            app:met_floatingLabel="none"
            app:met_primaryColor="#982360"
            app:met_singleLineEllipsis="true" />

    </LinearLayout>


</android.support.v7.widget.Cardview>

buildscript {
    dependencies {
        classpath 'com.google.gms:google-services:4.3.10'

    }
}// Top-level build file where you can add configuration options common to all sub-projects/modules.
plugins {
    id 'com.android.application' version '7.1.3' apply false
    id 'com.android.library' version '7.1.3' apply false
}



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