title: Problems updating new version 10.2.0 of PlayServices and Firebase
body: <p>I develop an Android app using Android Studio and I got the message today that there is a new version of Google Play services and Firebase.</p>
  
  <blockquote>
    <p>From 10.0.1 to 10.2.0.</p>
  </blockquote>
  
  <p>I'm using Google play services analytics and ads that's all.</p>
  
  <p>I am already choose an API min 9 and Now I think the ads can't be show in API &lt; 14 .</p>
  
  <p><strong>My build.gradle File:</strong></p>
  
  <pre><code> apply plugin: 'com.android.application'
  
  android {
  
      compileSdkVersion 25
      buildToolsVersion "25.0.0"
      defaultConfig {
          applicationId "com.ilyo.x1application"
          minSdkVersion 9
          targetSdkVersion 25
          versionCode 1
          versionName "1.0"
  
          testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  }
  
  dependencies {
      compile fileTree(dir: 'libs', include: ['*.jar'])
      androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
          exclude group: 'com.android.support', module: 'support-annotations'
      })
      compile 'com.android.support:appcompat-v7:25.1.1'
      compile 'com.google.firebase:firebase-ads:10.2.0'
      compile 'com.google.firebase:firebase-core:10.2.0'
      compile 'com.google.android.gms:play-services-ads:10.2.0'
      testCompile 'junit:junit:4.12'
  }
  
  apply plugin: 'com.google.gms.google-services'
  </code></pre>
  
  <p><strong>Error Message</strong></p>
  
  <blockquote>
    <blockquote>
      <p>Error:Execution failed for task ':app:processDebugManifest'.
       Manifest merger failed : uses-sdk:minSdkVersion 9 cannot be smaller than version 14 declared in library
      [com.google.firebase:firebase-ads:10.2.0]</p>
      
      <p>/Users/mac/Documents/AndroidStudioProjects/Project1/app/build/intermediates/exploded-aar/com.google.firebase/firebase-ads/10.2.0/AndroidManifest.xml
          Suggestion: use
      tools:overrideLibrary="com.google.firebase.firebase_ads" to force
      usage</p>
    </blockquote>
  </blockquote>
  
  <p>I want to all my ads of my Application can show in all devices, <strong>What do you recommend ?</strong></p>