title: Duplicate zip entry [commons-io-1.3.2.jar:org/apache/commons/io/CopyUtils.class])
body: <p>I get "Duplicate zip entry error" when using minifyEnabled.  </p>
  
  <p>Version of Android Studio : 1.0 rc 1<br>
  OS version: Mac OS 10.9.5<br>
  Java JRE/JDK version: "1.7.0_71"<br>
  Gradle: 0.14.0  </p>
  
  <p>Here are some of my build.gradle settings.</p>
  
  <pre><code>compileSdkVersion 21
  buildToolsVersion "21.1.1"
  
  packagingOptions {
      exclude 'META-INF/DEPENDENCIES.txt'
      exclude 'META-INF/LICENSE.txt'
      exclude 'META-INF/NOTICE.txt'
      exclude 'META-INF/NOTICE'
      exclude 'META-INF/LICENSE'
      exclude 'META-INF/DEPENDENCIES'
      exclude 'META-INF/notice.txt'
      exclude 'META-INF/MANIFEST.MF'
      exclude 'META-INF/license.txt'
      exclude 'META-INF/dependencies.txt'
  }
  
  buildTypes {
      release {
          minifyEnabled true
          //proguardFile file('proguard-project.txt')
          proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-project.txt'
      }
      debug {
          minifyEnabled true
          //proguardFile file('proguard-project.txt')
          proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-project.txt'
          debuggable true 
          applicationIdSuffix = '.alpha' 
          versionNameSuffix = 'a'
      }
  }
  dependencies {
  compile 'com.android.support:support-v4:21.0.0'
  compile 'com.android.support:appcompat-v7:21.0.2'
  compile project(':modules:Aviary-SDK')
  compile project(':modules:facebook')
  compile ('com.crashlytics.android:crashlytics:1.+'){
      exclude group: 'commons-io', module: 'commons-io'  //added this because crashlytics seems to be using commons-io
  }
  compile 'com.google.android.gms:play-services:6.1.11'
  compile 'org.apache.httpcomponents:httpcore:4.3.2'
  compile 'org.apache.httpcomponents:httpmime:4.3.5'
  }
  </code></pre>
  
  <p>I get this error message when I assembleDebug:</p>
  
  <pre><code>FAILURE: Build failed with an exception.
  
  * What went wrong:
  Execution failed for task ':app:proguardDebug'.
  &gt; java.io.IOException: Can't write [/Users/tomoaki/Workspace/temp/someproject/app/build/intermediates/classes-proguard/debug/classes.jar] (Can't read [/Users/tomoaki/.gradle/caches/modules-2/files-2.1/org.apache.commons/commons-io/1.3.2/b6dde38349ba9bb5e6ea6320531eae969985dae5/commons-io-1.3.2.jar(;;;;;;!META-INF/MANIFEST.MF)] (Duplicate zip entry [commons-io-1.3.2.jar:org/apache/commons/io/CopyUtils.class]))
  </code></pre>
  
  <p>I read <a href="https://stackoverflow.com/questions/26059838/duplicate-zip-entry-after-gradle-plugin-v0-13-1">this question</a> but the answers didn't work for me. Any help is appreciated.</p>