title: error when apply plugin: 'com.google.gms.google-services'
body: <p>I followed google documentation to integrate my app to Google Analytics.
  But when adding</p>
  
  <pre><code>apply plugin: 'com.google.gms.google-services'
  </code></pre>
  
  <p>and building my app, I encountered this error:</p>
  
  <pre><code>Error:(49, 0) For input string: "+"
  </code></pre>
  
  <p>These are the settings I used in the build.gradle of my application:</p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 22
      buildToolsVersion "22.0.1"
      defaultConfig {
          applicationId "com.myapp.xyz"
          manifestPlaceholders = [
              manifestApplicationId : "${applicationId}",
              onesignal_app_id : "ccd48c54-2069-41f9-8ff7-54c7a12f2d18a",
              onesignal_google_project_number: "306632981237"
          ]
          minSdkVersion 15
          targetSdkVersion 22
          versionCode 1
          versionName "1.0"
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'),
              'proguard-rules.pro'
          }
      }
  }
  
  repositories {
      mavenCentral()
  }
  
  dependencies {
      compile fileTree(include: ['*.jar'], dir: 'libs')
      // compile 'com.android.support:appcompat-v7:22.2.1'
      compile project(':facebook')
      compile 'com.android.support:design:22.2.1'
      compile 'com.android.support:palette-v7:22.2.1'
      compile 'com.astuetz:pagerslidingtabstrip:1.0.1'
      compile 'com.android.support:appcompat-v7:22.2.1'
      compile 'com.android.support:support-v4:22.2.1'
      compile 'com.onesignal:OneSignal:1.+@aar'
      compile 'com.google.android.gms:play-services-gcm:+'
      compile 'com.google.android.gms:play-services:8.4.0'
      compile 'com.google.android.gms:play-services-analytics:8.4.0'
  }
  apply plugin: 'com.google.gms.google-services'
  </code></pre>
  
  <p>These are the setting in build.gradle application:</p>
  
  <pre><code>buildscript {
      repositories {
          jcenter()
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:1.2.3'
          classpath 'com.google.gms:google-services:2.0.0-alpha6'
          // NOTE: Do not place your application dependencies here; they belong
          // in the individual module build.gradle files
      }
  }
  allprojects {
      repositories {
          jcenter()
      }
  }
  </code></pre>