不能在android studio上导入依赖性实现

我是android studio的初学者，我试图为一个DatePickerDialog库导入一个远程依赖关系( link for its github ) but the import doesn't work for me.

我试着通过Group Id（com.github.wdullaer）和Artifact Name（MaterialDateTimePicker）来导入它，因为它显示在ProjectStructure/dependencies中。

我试着--导入com.github.wdullaer.MaterialDateTimePicker

我也试过 --导入com.wdullaer.MaterialDateTimePicker

和更多，但进口不工作

这里是我的gradle。

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        google()
        mavenCentral()
        maven { url 'https://jitpack.io' }
    dependencies {
        classpath "com.android.tools.build:gradle:7.0.4"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.6.10"
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
task clean(type: Delete) {
    delete rootProject.buildDir
而这里是DateTimePicker的实现。
    plugins {
    id 'com.android.application'
    id 'kotlin-android'
android {
    compileSdk 32
    defaultConfig {
        applicationId "com.example.speedq"
        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
    kotlinOptions {
        jvmTarget = '1.8'
    buildFeatures {
        viewBinding true
dependencies {
    implementation 'com.github.wdullaer:MaterialDateTimePicker:v4.2.3' // this is the implementation I cant import
如果有人知道我怎样才能导入它，那将是非常有帮助的。