Add Facebook sdk 3.20.0 on Android Studio 0.9.2

try this solution:

• Download the Facebook SDK ( link )

• Unzip the facebook-android-sdk-3.20.0 file

• In Android Studio, perform the following operation: File menu-> Import Module

• Choose "facebook" inside the unzipped folder.

• Go to the directory facebook / build.grade change the content for this:

  apply plugin: 'android-library'

  project.group = 'com.facebook.android'
  
  dependencies {
      compile 'com.android.support:support-v4:20.0.+'
      compile 'com.parse.bolts:bolts-android:1.1.2'
  }
  
  android {
      compileSdkVersion 19
      buildToolsVersion '20.0.0'
  
      defaultConfig {
          minSdkVersion 10
          targetSdkVersion 19
      }
  
      lintOptions {
          abortOnError false
      }
  
      sourceSets {
          main {
              manifest.srcFile 'AndroidManifest.xml'
              java.srcDirs = ['src']
              res.srcDirs = ['res']
          }
      }
  }
  
  apply plugin: 'maven'
  apply plugin: 'signing'
  
  def isSnapshot = version.endsWith('-SNAPSHOT')
  def ossrhUsername = hasProperty('NEXUS_USERNAME') ? NEXUS_USERNAME : ""
  def ossrhPassword = hasProperty('NEXUS_PASSWORD') ? NEXUS_PASSWORD : ""
  
  task setVersion {
      // The version will be derived from source
      project.version = null
      def sdkVersionFile = file('src/com/facebook/FacebookSdkVersion.java')
      sdkVersionFile.eachLine{
          def matcher = (it =~ /(?:.*BUILD = \")(.*)(?:\".*)/)
          if (matcher.matches()) {
            project.version = matcher[0][1]
            return
          }
      }
      if (project.version.is('unspecified')) {
        throw new GradleScriptException('Version could not be found.', null)
      }
  }
  
  uploadArchives {
      repositories.mavenDeployer {
          beforeDeployment { MavenDeployment deployment -> signing.signPom(deployment) }
  
          repository(url: "https://oss.sonatype.org/service/local/staging/deploy/maven2/") {
              authentication(userName: ossrhUsername, password: ossrhPassword)
          }
  
          snapshotRepository(url: "https://oss.sonatype.org/content/repositories/snapshots/") {
              authentication(userName: ossrhUsername, password: ossrhPassword)
          }
  
          pom.project {
              name 'Facebook-Android-SDK'
              artifactId = 'facebook-android-sdk'
              packaging 'aar'
              description 'Facebook Android SDK'
              url 'https://github.com/facebook/facebook-android-sdk'
  
              scm {
                  connection 'scm:[email protected]:facebook/facebook-android-sdk.git'
                  developerConnection 'scm:[email protected]:facebook/facebook-android-sdk.git'
                  url 'https://github.com/facebook/facebook-android-sdk'
              }
  
              licenses {
                  license {
                      name 'The Apache Software License, Version 2.0'
                      url 'https://github.com/facebook/facebook-android-sdk/blob/master/LICENSE.txt'
                      distribution 'repo'
                  }
              }
  
              developers {
                  developer {
                      id 'facebook'
                      name 'Facebook'
                  }
              }
          }
      }
  }
  
  uploadArchives.dependsOn(setVersion)
  
  signing {
      required { !isSnapshot && gradle.taskGraph.hasTask("uploadArchives") }
      sign configurations.archives
  }
  
  task androidJavadocs(type: Javadoc) {
      source = android.sourceSets.main.java.srcDirs
      classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
  }
  
  task androidJavadocsJar(type: Jar, dependsOn: androidJavadocs) {
      classifier = 'javadoc'
      from androidJavadocs.destinationDir
  }
  
  task androidSourcesJar(type: Jar) {
      classifier = 'sources'
      from android.sourceSets.main.java.sourceFiles
  }
  
  artifacts {
      archives androidSourcesJar
      archives androidJavadocsJar
  }
  
  afterEvaluate {
      androidJavadocs.classpath += project.android.libraryVariants.toList().first().javaCompile.classpath
  }
  

• Click on your project and press F4, go to 'dependencies' tab, click on '+', 'module dependency' and select your project imported from Facebook.

• Now just give a Resync and a rebuild