title: TransformException duplicate entry for common.annotations.Beta
body: <p>This started when I added <code>google-api-services-calendar</code>. I am getting this error when trying to build:</p>
  
  <pre><code>Error:Execution failed for task ':app:transformClassesWithJarMergingForDebug'.
       com.android.build.transform.api.TransformException: java.util.zip.ZipException: 
       duplicate entry: com/google/common/annotations/Beta.class
  </code></pre>
  
  <p>This is part of the output when running <code>./gradlew app:dependencies</code>:</p>
  
  <pre><code>compile - Classpath for compiling the main sources.
  +--- com.google.android.gms:play-services-measurement:8.1.0
  |    +--- com.google.android.gms:play-services-base:8.1.0
  |    |    \--- com.google.android.gms:play-services-basement:8.1.0
  |    |         \--- com.android.support:support-v4:22.2.0 -&gt; 23.0.1
  |    |              \--- com.android.support:support-annotations:23.0.1
  |    \--- com.google.android.gms:play-services-analytics:8.1.0
  |         +--- com.google.android.gms:play-services-basement:8.1.0 (*)
  |         \--- com.google.android.gms:play-services-ads:8.1.0
  |              +--- com.google.android.gms:play-services-basement:8.1.0 (*)
  |              \--- com.google.android.gms:play-services-appindexing:8.1.0
  |                   \--- com.google.android.gms:play-services-basement:8.1.0 (*)
  +--- com.google.dagger:dagger:2.0
  |    \--- javax.inject:javax.inject:1
  +--- com.google.android.gms:play-services-identity:8.1.0
  |    \--- com.google.android.gms:play-services-base:8.1.0 (*)
  +--- com.google.android.gms:play-services-plus:8.1.0
  |    \--- com.google.android.gms:play-services-base:8.1.0 (*)
  +--- com.google.android.gms:play-services:8.1.0
  |    +--- com.google.android.gms:play-services-ads:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-analytics:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-appindexing:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-appinvite:8.1.0
  |    |    \--- com.google.android.gms:play-services-base:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-appstate:8.1.0
  |    |    \--- com.google.android.gms:play-services-base:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-base:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-basement:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-cast:8.1.0
  |    |    +--- com.google.android.gms:play-services-base:8.1.0 (*)
  |    |    \--- com.android.support:mediarouter-v7:22.2.0
  |    |         \--- com.android.support:appcompat-v7:22.2.0 -&gt; 23.0.1
  |    |              \--- com.android.support:support-v4:23.0.1 (*)
  |    +--- com.google.android.gms:play-services-drive:8.1.0
  |    |    \--- com.google.android.gms:play-services-base:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-fitness:8.1.0
  |    |    +--- com.google.android.gms:play-services-base:8.1.0 (*)
  |    |    \--- com.google.android.gms:play-services-location:8.1.0
  |    |         +--- com.google.android.gms:play-services-base:8.1.0 (*)
  |    |         \--- com.google.android.gms:play-services-maps:8.1.0
  |    |              \--- com.google.android.gms:play-services-base:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-games:8.1.0
  |    |    +--- com.google.android.gms:play-services-base:8.1.0 (*)
  |    |    \--- com.google.android.gms:play-services-drive:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-gcm:8.1.0
  |    |    \--- com.google.android.gms:play-services-base:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-identity:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-location:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-maps:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-measurement:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-nearby:8.1.0
  |    |    \--- com.google.android.gms:play-services-base:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-panorama:8.1.0
  |    |    \--- com.google.android.gms:play-services-base:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-plus:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-safetynet:8.1.0
  |    |    \--- com.google.android.gms:play-services-base:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-vision:8.1.0
  |    |    \--- com.google.android.gms:play-services-base:8.1.0 (*)
  |    +--- com.google.android.gms:play-services-wallet:8.1.0
  |    |    +--- com.google.android.gms:play-services-base:8.1.0 (*)
  |    |    +--- com.google.android.gms:play-services-identity:8.1.0 (*)
  |    |    \--- com.google.android.gms:play-services-maps:8.1.0 (*)
  |    \--- com.google.android.gms:play-services-wearable:8.1.0
  |         \--- com.google.android.gms:play-services-base:8.1.0 (*)
  +--- com.google.guava:guava:18.0
  +--- com.google.maps.android:android-maps-utils:0.4
  +--- com.google.apis:google-api-services-calendar:v3-rev125-1.20.0
  |    \--- com.google.api-client:google-api-client:1.20.0
  |         +--- com.google.oauth-client:google-oauth-client:1.20.0
  |         |    +--- com.google.http-client:google-http-client:1.20.0
  |         |    |    \--- com.google.code.findbugs:jsr305:1.3.9
  |         |    \--- com.google.code.findbugs:jsr305:1.3.9
  |         +--- com.google.http-client:google-http-client-jackson2:1.20.0
  |         |    +--- com.google.http-client:google-http-client:1.20.0 (*)
  |         |    \--- com.fasterxml.jackson.core:jackson-core:2.1.3 -&gt; 2.2.2
  |         \--- com.google.guava:guava-jdk5:13.0
  +--- com.android.support:design:23.0.1
  |    +--- com.android.support:support-v4:23.0.1 (*)
  |    \--- com.android.support:appcompat-v7:23.0.1 (*)
  +--- com.android.support:recyclerview-v7:23.0.1
  |    +--- com.android.support:support-v4:23.0.1 (*)
  |    \--- com.android.support:support-annotations:23.0.1
  +--- com.android.support:cardview-v7:23.0.1
  +--- com.android.support:palette-v7:23.0.1
  |    \--- com.android.support:support-v4:23.0.1 (*)
  +--- com.android.support:appcompat-v7:22.2.0 -&gt; 23.0.1 (*)
  +--- com.android.support:support-v4:22.2.0 -&gt; 23.0.1 (*)
  +--- com.firebase:firebase-client-android:2.3.1
  |    \--- com.firebase:firebase-client-jvm:2.3.1
  |         +--- com.fasterxml.jackson.core:jackson-databind:2.2.2
  |         |    +--- com.fasterxml.jackson.core:jackson-annotations:2.2.2
  |         |    \--- com.fasterxml.jackson.core:jackson-core:2.2.2
  |         \--- com.firebase:tubesock:0.0.11
  +--- com.firebase:firebase-client-jvm:2.3.0 -&gt; 2.3.1 (*)
  +--- net.danlew:android.joda:2.8.0
  |    \--- joda-time:joda-time:2.8
  +--- org.joda:joda-convert:1.2
  +--- com.squareup:otto:1.3.5
  +--- com.jakewharton:butterknife:7.0.1
  +--- org.apache.commons:commons-lang3:3.4
  +--- org.apache.commons:commons-collections4:4.0
  \--- com.bignerdranch.android:expandablerecyclerview:1.0.3
       \--- com.android.support:recyclerview-v7:22.2.0 -&gt; 23.0.1 (*)
  </code></pre>
  
  <p><strong>I have tried adding this to <em>all</em> my dependencies:</strong></p>
  
  <pre><code>compile (some.dependencie.that.may.or.may.not.have.the.duplicate){
      exclude group: 'com.google.common', module: 'annotations'
  }
  </code></pre>
  
  <p><strong>I tried adding this to my <code>android</code> block:</strong></p>
  
  <pre><code>configurations {
     all*.exclude group: 'com.google.common', module: 'annotations'
  }    
  </code></pre>
  
  <p>with these variations:</p>
  
  <pre><code> all*.exclude module: 'annotations`
   all*.exclude group: 'com.google.common'
   all*.exclude group: 'com.google.common.annotations'
  </code></pre>
  
  <p><strong>This is the <code>build.gradle</code> <em>before</em> any attempts to fix error:</strong></p>
  
  <pre><code>dependencies {
      compile fileTree(dir: 'libs', include: ['*.jar'])
  
      // Google
      compile 'com.google.dagger:dagger:2.0'
      apt 'com.google.dagger:dagger-compiler:2.0'
      compile 'com.google.android.gms:play-services-identity:8.1.0'
      compile 'com.google.android.gms:play-services-plus:8.1.0'
      compile 'com.google.android.gms:play-services:8.1.0'
      compile 'com.google.guava:guava:18.0'
      compile 'com.google.maps.android:android-maps-utils:0.4'
      compile('com.google.apis:google-api-services-calendar:v3-rev125-1.20.0') {
          exclude group: 'org.apache.httpcomponents', module: 'httpclient'
      }
  
      // Android Design
      compile 'com.android.support:design:23.0.1'
      compile 'com.android.support:recyclerview-v7:23.0.1'
      compile 'com.android.support:cardview-v7:23.0.1'
      compile 'com.android.support:palette-v7:23.0.1'
  
      // Android Support
      compile('com.android.support:appcompat-v7:22.2.0') {
          exclude group: 'org.apache.httpcomponents', module: 'httpclient'
      }
      compile('com.android.support:support-v4:22.2.0') {
          exclude group: 'org.apache.httpcomponents', module: 'httpclient'
      }
  
      // Firebase
      compile('com.firebase:firebase-client-android:2.3.1') {
          exclude group: 'org.apache.httpcomponents', module: 'httpclient'
      }
      compile('com.firebase:firebase-client-jvm:2.3.0') {
          exclude group: 'org.apache.httpcomponents', module: 'httpclient'
      }
  
      // Joda Time
      compile 'net.danlew:android.joda:2.8.0'
      compile 'org.joda:joda-convert:1.2'
  
      // Square
      compile 'com.squareup:otto:1.3.5'
      compile 'com.jakewharton:butterknife:7.0.1'
      provided 'javax.annotation:jsr250-api:1.0'
  
      // Common
      compile 'org.apache.commons:commons-lang3:3.4'
      compile 'org.apache.commons:commons-collections4:4.0'
  
      compile 'com.bignerdranch.android:expandablerecyclerview:1.0.3'
  }
  </code></pre>
  
  <p>I have searched my project for <code>Beta.class</code> and found that it is only being used in some jars; <code>com.google.common.annotations</code>, <code>com.google.api.client.util</code> and <code>dagger.internal</code>. I tried to add the <code>exclude group</code> to those related dependencies and still see the same error.</p>
  
  <p>I have been stuck here for way too long. Any suggestions? </p>