Cannot Find Symbol Class PermissionManager

[jayabrown]

Expected Results

Launch the app

Actual Results

Build Failed: error: cannot find symbol class PermissionManager

Steps & Code to Reproduce

Following the docs here, cloned the repo:
git clone https://github.com/realm/my-first-realm-app

opened in Android studio:
<root>/my-first-realm-app/android/todo-full-sync

Code Sample

in Project build.gradle:

dependencies {
        classpath 'com.android.tools.build:gradle:3.5.1'
        classpath "io.realm:realm-gradle-plugin:6.0.0"
    }

in app build.gradle:

apply plugin: 'realm-android'

ProjectsActivity.java:

Version of Realm and tooling

Realm version(s): 6.0.0

Android Studio version: 3.5.1

Which device OS version and device: Android emulator Pixel 3 API 29