title: Error with android.support.v4 library
body: <p>I'm trying to use the Android Skype SDK <a href="https://github.com/OfficeDev/skype-android-app-sdk-samples" rel="nofollow noreferrer">sample code</a> in my project and I'm getting loads of errors saying <code>android.support.v4 not found</code>.<br>
  The <code>android-support-v4.jar</code> file is already in my <code>libs</code> folder.<br>
  I've followed other articles and tried to remove and add again but no success.   Can anyone help me here please?</p>
  
  <p>My gradle file</p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  def ROOTDIR     = file("..").absolutePath
  
  android {
      compileSdkVersion 23
      buildToolsVersion "23.0.2"
      useLibrary 'org.apache.http.legacy'
  
  
  defaultConfig {
      applicationId "it.moondroid.chatbot"
      minSdkVersion 17
      targetSdkVersion 23
      versionCode 1
      versionName "1.0"
      multiDexEnabled true
  
      jackOptions {
        //  enabled true
      }
  }
  
  compileOptions {
      sourceCompatibility JavaVersion.VERSION_1_7
      targetCompatibility JavaVersion.VERSION_1_7
  }
  
  
  
  buildTypes {
      debug {
          minifyEnabled false
          debuggable true
          jniDebuggable true
      }
  
      release {
          debuggable true
          minifyEnabled false
          proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
      }
  
      packagingOptions {
          exclude 'META-INF/DEPENDENCIES'
          exclude 'META-INF/LICENSE.txt'
          exclude 'META-INF/NOTICE.txt'
          exclude 'META-INF/NOTICE'
          exclude 'META-INF/LICENSE'
          exclude 'META-INF/MSFTSIG.RSA'
          exclude 'META-INF/BCKEY.DSA'
          exclude 'META-INF/BCKEY.SF'
          exclude 'META-INF/MSFTSIG.SF'
      }
  
      dexOptions {
          preDexLibraries=false
          jumboMode = true
          javaMaxHeapSize "4g"
      }
  }
  
  configurations {
      all*. exclude group: 'com.android.support', module: 'support-v4'
      all*. exclude group: 'com.android.support', module: 'support-annotations'
  }
  
  productFlavors {
  }
  }
  
  dependencies {
  
  compile 'com.android.support:multidex:1.0.1'
  compile fileTree(dir: 'libs', include: ['*.jar'])
  testCompile 'junit:junit:4.12'
  compile files('libs/sanmoku-0.0.5.jar')
  compile files('libs/joda-time-2.1.jar')
  compile(name: "libucmp", ext: 'aar')
  compile(name: "platform", ext: 'aar')
  compile(name: "injector", ext: 'aar')
  compile(name: "SkypeForBusiness", ext: 'aar')
  compile(name: "ucmp-enums", ext: 'aar')
  compile(name: "TelemetryClient2", ext: 'aar')
  compile(name: "TelemetryService", ext: 'aar')
  compile(name: "android-database-sqlcipher", ext: 'aar')
  compile 'com.android.support:appcompat-v7:23.0.1'
  compile 'com.android.support:design:23.1.1'
  compile 'com.android.support:recyclerview-v7:23.0.1'
  compile 'com.android.support:cardview-v7:23.0.1'
  compile 'com.android.support:support-v4:23.0.1'
  }
  </code></pre>
  
  <p>Errors:</p>
  
  <pre><code>Information:Gradle tasks [:app:assembleDebug]
  :app:preBuild UP-TO-DATE
  :app:preDebugBuild UP-TO-DATE
  :app:checkDebugManifest
  :app:preDexOptionsBuild UP-TO-DATE
  :app:prePackagingOptionsBuild UP-TO-DATE
  :app:preReleaseBuild UP-TO-DATE
  :app:prepareAndroidDatabaseSqlcipherLibrary UP-TO-DATE
  :app:prepareComAndroidSupportAppcompatV72311Library UP-TO-DATE
  :app:prepareComAndroidSupportCardviewV72301Library UP-TO-DATE
  :app:prepareComAndroidSupportDesign2311Library UP-TO-DATE
  :app:prepareComAndroidSupportMultidex101Library UP-TO-DATE
  :app:prepareComAndroidSupportRecyclerviewV72311Library UP-TO-DATE
  :app:prepareInjectorLibrary UP-TO-DATE
  :app:prepareLibucmpLibrary UP-TO-DATE
  :app:preparePlatformLibrary UP-TO-DATE
  :app:prepareSkypeForBusinessLibrary UP-TO-DATE
  :app:prepareTelemetryClient2Library UP-TO-DATE
  :app:prepareTelemetryServiceLibrary UP-TO-DATE
  :app:prepareUcmpEnumsLibrary UP-TO-DATE
  :app:prepareDebugDependencies
  :app:compileDebugAidl UP-TO-DATE
  :app:compileDebugRenderscript UP-TO-DATE
  :app:generateDebugBuildConfig UP-TO-DATE
  :app:mergeDebugShaders UP-TO-DATE
  :app:compileDebugShaders UP-TO-DATE
  :app:generateDebugAssets UP-TO-DATE
  :app:mergeDebugAssets UP-TO-DATE
  :app:generateDebugResValues UP-TO-DATE
  :app:generateDebugResources UP-TO-DATE
  :app:mergeDebugResources UP-TO-DATE
  :app:processDebugManifest UP-TO-DATE
  :app:processDebugResources UP-TO-DATE
  :app:generateDebugSources UP-TO-DATE
  :app:incrementalDebugJavaCompilationSafeguard UP-TO-DATE
  :app:compileDebugJavaWithJavac
  :app:compileDebugJavaWithJavac - is not incremental (e.g. outputs have changed, no previous execution, etc.).
  /Users/Anish/Desktop/BTBank/app/src/main/java/it/moondroid/chatbot/ConversationsActivity.java
  Error:(26, 8) error: cannot access SupportParentable
  class file for android.support.v4.app.TaskStackBuilder$SupportParentable not found
  Error:(271, 13) error: cannot access DrawerLayout
  class file for android.support.v4.widget.DrawerLayout not found
  /Users/Anish/Desktop/BTBank/app/src/main/java/it/moondroid/chatbot/ChatAdapter.java
  Error:(27, 8) error: cannot access NestedScrollingChild
  class file for android.support.v4.view.NestedScrollingChild not found
  Error:(27, 55) error: type argument ChatItemPresenter is not within bounds of type-variable VH
  where VH is a type-variable:
  VH extends ViewHolder declared in class Adapter
  Error:(42, 9) error: cannot find symbol variable this
  Error:(43, 9) error: cannot find symbol variable this
  Error:(44, 9) error: cannot find symbol variable this
  Error:(44, 58) error: cannot find symbol variable this
  Error:(45, 13) error: package this does not exist
  Error:(64, 5) error: method does not override or implement a method from a supertype
  Error:(70, 48) error: cannot find symbol variable this
  Error:(82, 5) error: method does not override or implement a method from a supertype
  Error:(94, 53) error: package this does not exist
  Error:(146, 9) error: cannot find symbol variable this
  Error:(154, 5) error: method does not override or implement a method from a supertype
  Error:(156, 20) error: package this does not exist
  /Users/Anish/Desktop/BTBank/app/src/main/java/it/moondroid/chatbot/ChatItemPresenter.java
  Error:(20, 8) error: cannot access ScrollingView
  class file for android.support.v4.view.ScrollingView not found
  Error:(33, 9) error: cannot find symbol variable this
  Error:(34, 9) error: cannot find symbol variable this
  Error:(35, 9) error: cannot find symbol variable this
  Error:(35, 39) error: an enclosing instance that contains ChatItemPresenter.ChatItemPropertyChangeListener is required
  Error:(35, 74) error: cannot find symbol variable this
  Error:(39, 16) error: cannot find symbol variable this
  Error:(47, 56) error: package this does not exist
  Error:(57, 52) error: package this does not exist
  Error:(62, 60) error: package this does not exist
  Error:(72, 16) error: cannot find symbol variable this
  /Users/Anish/Desktop/BTBank/app/src/main/java/it/moondroid/chatbot/ChatFragment.java
  Error:(98, 37) error: incompatible types: ChatAdapter cannot be converted to Adapter
  :app:compileDebugJavaWithJavac FAILED
  Error:Execution failed for task ':app:compileDebugJavaWithJavac'.
  &gt; Compilation failed; see the compiler error output for details.
  Information:BUILD FAILED
  Information:Total time: 4.785 secs
  Information:29 errors
  Information:0 warnings
  Information:See complete output in console
  </code></pre>