title: Execution failed for task ':app:checkDebugDuplicateClasses'
body: <p>I manually implement 28.0.0 dependency but I found duplicate dependency(28.0.0 and 24.0.0) 
  so i want to exclude or remove this(support:24.0.0) dependency from my gradle file</p>
  
  <pre><code>dependencies {
      implementation fileTree(dir: 'libs', include: ['*.jar'])
      testImplementation 'junit:junit:4.12'
      implementation files('libs/gcm.jar')
      implementation 'com.android.support:appcompat-v7:28.0.0'
      implementation "com.android.support:support-core-utils:28.0.0"
      implementation 'com.android.support:design:28.0.0'
      implementation 'com.google.android.gms:play-services-maps:10.2.1'
      implementation 'com.google.android.gms:play-services-gcm:10.2.1'
      implementation 'com.android.support:recyclerview-v7:28.0.0'
      implementation 'com.android.support:cardview-v7:28.0.0'
      implementation files('libs/httpclient-4.3.6.jar')
      implementation files('libs/httpcore-4.3.3.jar')
      implementation files('libs/httpmime-4.3.6.jar')
      implementation files('libs/Shutterbug-1.0.0.jar')
      implementation files('libs/YouTubeAndroidPlayerApi.jar')
      implementation files('libs/picasso-2.5.2.jar')
      implementation 'com.mcxiaoke.volley:library-aar:1.0.0'
      implementation 'com.github.siyamed:android-shape-imageview:0.9.+@aar'
      implementation 'com.github.bumptech.glide:glide:3.7.0'
      implementation 'com.google.android.gms:play-services-analytics:10.2.1'
      implementation 'com.google.firebase:firebase-messaging:10.2.1'
      implementation 'com.firebase:firebase-client-android:2.5.2'
  }
  apply plugin: 'com.google.gms.google-services'
  </code></pre>