Push firebase не могу настроить

apply plugin: 'com.android.application'

android {
compileSdkVersion 26
buildToolsVersion "26.0.1"

defaultConfig {
applicationId "com.google.simplefirebasechat.myfcm.app "
minSdkVersion 14
targetSdkVersion 26
versionCode 1
versionName "1.0"
}

compileOptions {
sourceCompatibility JavaVersion.VERSION_1_7
targetCompatibility JavaVersion.VERSION_1_7
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}

dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:26.0.0-alpha1'
compile 'com.google.firebase:firebase-messaging:11.2.0'
}
apply plugin: 'com.google.gms.google-services'

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

buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.3.0'
classpath 'com.google.gms:google-services:3.1.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}

allprojects {
repositories {
jcenter()
maven {
url "https://maven.google.com"
}
}
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.google.simplefirebasechat.m yfcm.app" >
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN " />

<category android:name="android.intent.category.LA UNCHER" />
</intent-filter>
</activity>
<service android:name=".MyFirebaseInstanceIdServi ce">
<intent-filter>
<action android:name="com.google.firebase.INSTAN CE_ID_EVENT"></action>
</intent-filter>
</service>
<service android:name=".MyFirebaseMessagingServic e">
<intent-filter>
<action android:name="com.google.firebase.MESSAG ING_EVENT"></action>
</intent-filter>
</service>
</application>

</manifest>