OneSignalSDK version matching error when using google-services plugin

build.gradle

//App build.gradle
apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'
apply plugin: 'com.onesignal.androidsdk.onesignal-gradle-plugin'

android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.example.sannyo.testonesignalsdk"
        minSdkVersion 16
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        manifestPlaceholders = [onesignal_app_id               : 'APP_ID',
                                onesignal_google_project_number: 'REMOTE']
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support:design:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
    implementation 'com.android.support:support-vector-drawable:27.1.1'
    implementation 'com.google.android.gms:play-services-auth:15.0.1'
    implementation 'com.google.firebase:firebase-core:16.0.0'
    implementation 'com.onesignal:OneSignal:3.9.1'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}

//NOTE: Create project on Firebase. Add google-services.json in the test app to this plugin to function
apply plugin: 'com.google.gms.google-services'

project-build.gradle

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

buildscript {
    ext.kotlin_version = '1.2.41'
    repositories {
        google()
        jcenter()
        maven { url 'https://maven.fabric.io/public' }
        maven { url "https://jitpack.io" }
        maven { url 'https://plugins.gradle.org/m2/' }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.2'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath 'com.google.gms:google-services:4.0.0'
        classpath 'io.fabric.tools:gradle:1.25.1'
        classpath 'com.getkeepsafe.dexcount:dexcount-gradle-plugin:0.6.3'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath 'gradle.plugin.com.onesignal:onesignal-gradle-plugin:0.10.1'

        // 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
}