title: Error:Conflict with dependency 'com.google.code.findbugs:jsr305'
body: <p>I created a new project in <strong>Android Studio 2.2 Preview 1</strong> with Android App and Backend module with Google Messaging. This is the app file:</p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 23
      buildToolsVersion "23.0.3"
      defaultConfig {
          applicationId "com.xxx.xxx"
          minSdkVersion 15
          targetSdkVersion 23
          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'])
      compile 'com.android.support:appcompat-v7:23.4.0'
      compile 'com.android.support.constraint:constraint-layout:1.0.0-alpha1'
      compile 'com.google.android.gms:play-services-gcm:9.0.0'
      testCompile 'junit:junit:4.12'
      androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.2'
      androidTestCompile 'com.android.support.test:runner:0.5'
      androidTestCompile 'com.android.support:support-annotations:23.4.0'
      compile project(path: ':backend', configuration: 'android-endpoints')
  }
  </code></pre>
  
  <p>But it's giving:</p>
  
  <blockquote>
    <p>Error:Conflict with dependency 'com.google.code.findbugs:jsr305'. Resolved versions for app (1.3.9) and test app (2.0.1) differ. See <a href="http://g.co/androidstudio/app-test-app-conflict" rel="noreferrer">http://g.co/androidstudio/app-test-app-conflict</a> for details.</p>
  </blockquote>
  
  <p>I am new to Android and not able to find what is this error. How do I fix it?</p>