title: Could not determine the dependencies of task ':app:crashlyticsStoreDeobsDebug' if I enable the proguard
body: <p>I get following error when I was running an app within Android Studio 2.</p>
  
  <pre><code>Gradle tasks [:app:assembleDebug]
  Could not determine the dependencies of task ':app:crashlyticsStoreDeobsDebug'.
  &gt; Task with path 'dexDebug' not found in project ':app'.
  BUILD FAILED
  </code></pre>
  
  <p>Here is the build.gradle for module</p>
  
  <pre><code>buildscript {
      repositories {
          maven { url 'http://download.crashlytics.com/maven' }
          maven { url "http://dl.bintray.com/populov/maven" }
      }
  
      dependencies {
          classpath 'com.crashlytics.tools.gradle:crashlytics-gradle:1.+'
      }
  }
  
  apply plugin: 'com.android.application'
  apply plugin: 'crashlytics'
  
  repositories {
      maven { url 'http://download.crashlytics.com/maven' }
      maven { url "http://dl.bintray.com/populov/maven" }
      maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
  }
  
  android {
      compileSdkVersion 23
      buildToolsVersion '23.0.2'
  
      defaultConfig {
          minSdkVersion 17
          targetSdkVersion 19
      }
  
  
      buildTypes {
          debug {
              minifyEnabled true
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  }
  
  dependencies {
      compile 'com.android.support:appcompat-v7:23.+'
      compile 'com.crashlytics.android:crashlytics:1.+'
  }
  </code></pre>
  
  <p>The error is gone if I set the minfyEnabled to "false". But I do want it enabled. </p>
  
  <p>Here is the build.gradle in project level.</p>
  
  <pre><code>buildscript {
      repositories {
          mavenCentral()
          jcenter()
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:2.0.0-alpha3'
      }
  }
  
  allprojects {
      repositories {
          maven { url "http://dl.bintray.com/populov/maven" }
          mavenCentral()
          jcenter()
      }
  }
  </code></pre>
  
  <p>The error is also gone if I replace "2.0.0-alpha3" to "1.3.1". But I do want "2.0.0" because I want the "Instant Run" feature.</p>
  
  <p>Here is the gradle-wrapper.properties.</p>
  
  <pre><code>#Mon Dec 21 14:43:00 CST 2015
  distributionBase=GRADLE_USER_HOME
  distributionPath=wrapper/dists
  zipStoreBase=GRADLE_USER_HOME
  zipStorePath=wrapper/dists
  distributionUrl=https\://services.gradle.org/distributions/gradle-2.8-all.zip
  </code></pre>
  
  <p>Does anyone know how to fix it? Thank you.</p>