title: Data binding class not generated in latest studio 3.6
body: <p>Today I have updated my android studio 3.5.3 to 3.6. Now, I am not able to generate any data binding class. Android studio it self generating data-binding-iml file.</p>
  
  <p>Does any one faced such issue?</p>
  
  <p><strong>Gradle wrapper.properties:</strong></p>
  
  <pre><code>distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
  </code></pre>
  
  <p><strong>Project level gradle file:</strong></p>
  
  <pre><code>dependencies {
          classpath 'com.android.tools.build:gradle:3.5.3'
  }
  </code></pre>
  
  <p><strong>App level gradle file:</strong></p>
  
  <pre><code>apply plugin: 'com.android.application'
  apply plugin: 'kotlin-android'
  apply plugin: 'kotlin-android-extensions'
  apply plugin: 'kotlin-kapt'
  apply plugin: 'androidx.navigation.safeargs'
  android {
   dataBinding {
          enabled = true
      }
      // Using Lambda Expressions
      compileOptions {
          sourceCompatibility JavaVersion.VERSION_1_8
          targetCompatibility JavaVersion.VERSION_1_8
      }
  
      kotlinOptions {
          jvmTarget = "1.8"
      }
  }
  </code></pre>
  
  <p><strong>gradle.properties:</strong></p>
  
  <pre><code>kotlin.code.style=official
  android.databinding.enableV2=true
  kotlin.incremental=true
  kapt.incremental.apt=true
  </code></pre>
  
  <p>Below is my Activity and XML files:
  <strong>Activity:</strong></p>
  
  <pre><code>class ActivityMain : AppCompatActivity() {
      override fun onCreate(savedInstanceState: Bundle?) {
          super.onCreate(savedInstanceState)
          var binding = DataBindingUtil.setContentView&lt;ActivityMainBinding&gt;(this, R.layout.activity_main)
      }
  }
  </code></pre>
  
  <p><strong>XML:</strong></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;layout xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto"&gt;
  
      &lt;data&gt;
          &lt;import type="android.view.View" /&gt;
       &lt;!--   &lt;variable
              name="loading"
              type="Boolean" /&gt;--&gt;
          &lt;variable
              name="bottomMenu"
              type="Boolean" /&gt;
          &lt;variable
              name="clickListener"
              type="com.ecom.side_menu.SideMenuClickHandler" /&gt;
      &lt;/data&gt;
      &lt;androidx.drawerlayout.widget.DrawerLayout
          android:id="@+id/drawer_layout"
          android:layout_width="match_parent"
          android:fitsSystemWindows="false"
          android:layout_height="match_parent"&gt;
  
          &lt;androidx.constraintlayout.widget.ConstraintLayout
              android:id="@+id/container"
              android:layout_width="match_parent"
              android:layout_height="match_parent"&gt;
  
              &lt;include
                  android:id="@+id/layToolbar"
                  layout="@layout/layout_toolbar"
                  app:layout_constraintEnd_toEndOf="parent"
                  app:layout_constraintStart_toStartOf="parent"
                  app:layout_constraintTop_toTopOf="parent" /&gt;
  
              &lt;androidx.fragment.app.FragmentContainerView
                  android:id="@+id/splash_host"
                  android:name="androidx.navigation.fragment.NavHostFragment"
                  android:layout_width="0dp"
                  android:layout_height="0dp"
                  android:background="@android:color/white"
                  app:defaultNavHost="true"
                  app:layout_constraintBottom_toTopOf="@+id/bottomNavigationView"
                  app:layout_constraintLeft_toLeftOf="parent"
                  app:layout_constraintRight_toRightOf="parent"
                  app:layout_constraintTop_toBottomOf="@+id/layToolbar"
                  app:navGraph="@navigation/splash_graph" /&gt;
  
              &lt;com.google.android.material.bottomnavigation.BottomNavigationView
                  android:id="@+id/bottomNavigationView"
                  android:layout_width="0dp"
                  android:layout_height="wrap_content"
                  android:layout_marginStart="0dp"
                  android:layout_marginEnd="0dp"
                  android:background="@color/colorPrimary"
                  android:visibility="@{safeUnbox(bottomMenu) ? View.VISIBLE : View.GONE}"
                  app:itemBackground="@color/colorPrimary"
                  app:itemIconTint="@android:color/white"
                  app:itemTextColor="@android:color/white"
                  app:layout_constraintBottom_toBottomOf="parent"
                  app:layout_constraintEnd_toEndOf="parent"
                  app:layout_constraintStart_toStartOf="parent"
                  app:menu="@menu/menu_navigation_dashboard" /&gt;
  
  
           &lt;!--   &lt;include
                  android:id="@+id/progressLayoutId"
                  layout="@layout/layout_progress"
                  android:visibility="@{safeUnbox(loading) ? View.VISIBLE : View.GONE}"
                  app:layout_constraintBottom_toBottomOf="parent"
                  app:layout_constraintEnd_toEndOf="parent"
                  app:layout_constraintStart_toStartOf="parent" /&gt;--&gt;
  
          &lt;/androidx.constraintlayout.widget.ConstraintLayout&gt;
  
          &lt;com.google.android.material.navigation.NavigationView
              android:id="@+id/navigationView"
              android:layout_width="wrap_content"
              android:layout_height="match_parent"
              android:layout_gravity="start"
              android:background="@android:color/white"
              android:fitsSystemWindows="true"
              android:visibility="visible"&gt;
              &lt;include
                  android:id="@+id/customDrawerList"
                  app:clickListener="@{clickListener}"
                  layout="@layout/drawer_list" /&gt;
          &lt;/com.google.android.material.navigation.NavigationView&gt;
  
      &lt;/androidx.drawerlayout.widget.DrawerLayout&gt;
  
  &lt;/layout&gt;
  </code></pre>
  
  <h2>Official solution:</h2>
  
  <h2>Google has resolved this issue. After updating with new patch of android studio 3.6.2, I am able to create databinding class with multiple source set</h2>