如何解决未找到的Gradle DSL方法：'implementation（）'

Question

我正在尝试遵循本教程，并在gradle.build中添加以下行：

https://android.jlelse.eu/googles-new-transition-api-for-android-d5d9d6904883

我不断收到此错误

Gradle DSL method not found: 'implementation()'
Possible causes:
The project 'My Application' may be using a version of the Android Gradle plug-in that does not contain the method (e.g. 'testCompile' was added in 1.1.0).
Upgrade plugin to version 3.5.3 and sync project

The project 'My Application' may be using a version of Gradle that does not contain the method.
Open Gradle wrapper file

The build file may be missing a Gradle plugin.
Apply Gradle plugin

这是我的gradle.build的样子

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    ext.kotlin_version = '1.3.50'
    repositories {
        google()
        jcenter()

    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.5.3'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        apply plugin: 'application'
        apply plugin: 'maven'
        implementation 'com.google.android.gms:play-services-location:15.0.1'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files

    }
}

allprojects {
    repositories {
        google()
        jcenter()

    }
}

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

我尝试将其切换为编译方式，但已弃用。我已经尝试了Google列出的顶级解决方案，但是没有用。