title: Execution failed for task ':app:compileDebugKotlin'
body: <p>I recently updated my kotlin and kotlin extensions plugin and while building I am getting the following error. I tried clean build or sync project with gradle but nothing works</p>
  
  <pre><code>e: Supertypes of the following classes cannot be resolved. Please make sure you have the required dependencies in the classpath:
  Error:Execution failed for task ':app:compileDebugKotlin'.
  &gt; Compilation error. See log for more details
  </code></pre>
  
  <p>The build.gradle is as follows</p>
  
  <pre><code>apply plugin: 'com.android.application'
  apply plugin: 'kotlin-android'
  
  buildscript {
      ext.kotlin_version = '1.0.0-beta-1038'
      ext.anko_version = '0.7.2'
      ext.android_support_version = '23.0.1'
      ext.android_extensions_version = '1.0.0-beta-1038'
  
      repositories {
          jcenter()
          mavenCentral()
      }
      dependencies {
          classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
          classpath "org.jetbrains.kotlin:kotlin-android-extensions:$kotlin_version"
      }
  }
  
  
  android {
      compileSdkVersion 23
      buildToolsVersion "23.0.1"
  
      defaultConfig {
          applicationId "com.xxxxxxxxxx.app"
          minSdkVersion 18
          targetSdkVersion 23
          versionCode 1
          versionName "1.0"
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
      compileOptions {
          sourceCompatibility JavaVersion.VERSION_1_7
          targetCompatibility JavaVersion.VERSION_1_7
      }
      sourceSets {
          main.java.srcDirs += 'src/main/kotlin'
          debug.java.srcDirs += 'build/generated/src/main/debug'
          release.java.srcDirs += 'build/generated/src/main/release'
      }
      dexOptions {
          preDexLibraries = false
          javaMaxHeapSize "4g"
      }
      packagingOptions {
          exclude 'META-INF/LICENSE'
          exclude 'META-INF/NOTICE'
          exclude 'META-INF/LICENSE.txt'
          exclude 'META-INF/NOTICE.txt'
      }
  }
  
  repositories {
      jcenter()
      mavenCentral()
      jcenter { url "https://jitpack.io" }
  }
  
  dependencies {
      provided fileTree(dir: 'libs', include: ['*.jar'])
      testCompile 'junit:junit:4.12'
      compile 'io.realm:realm-android:0.83.0'
      compile 'com.github.PhilJay:MPAndroidChart:v2.1.3'
      compile 'com.braintreepayments.api:braintree:1.+'
      compile('com.mikepenz:materialdrawer:4.4.1@aar') {
          transitive = true
      }
      compile 'com.mikepenz:google-material-typeface:1.2.0.1@aar'
      compile project(':temperature')
      compile project(':heart')
      compile project(':lungs')
      compile "com.android.support:cardview-v7:$android_support_version"
      compile 'com.github.wendykierp:JTransforms:3.1'
      compile 'fuel:fuel:0.57'
      compile "org.jetbrains.anko:anko-sdk15:$anko_version"
      compile "org.jetbrains.anko:anko-support-v4:$anko_version"
      compile 'org.apache.directory.studio:org.apache.commons.io:2.4'
      compile 'com.google.android.gms:play-services:8.1.0'
      compile "com.android.support:recyclerview-v7:$android_support_version"
      compile "com.android.support:appcompat-v7:$android_support_version"
      compile "com.android.support:support-v4:$android_support_version"
      compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
  }
  </code></pre>
  
  <p>can someone point out what is the issue with this?</p>
  
  <p>Thanks</p>