title: AndroidManifest.xml' specified for property 'manifest' does not exist (AndroidStudio)
body: <p>I have no idea why i am getting the following error:</p>
  
  <p>Error:A problem was found with the configuration of task
  ':checkDebugManifest'. File
  '/Users/me/Downloads/MyProject/AndroidManifest.xml' specified for
  property 'manifest' does not exist.</p>
  
  <p>Any suggestions? Thanks in advance.</p>
  
  <p>app/build.gradle</p>
  
  <pre><code>buildscript {
      repositories {
          mavenCentral()
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:0.13.0'
          classpath 'com.neenbedankt.gradle.plugins:android-apt:1.+'
      }
  }
  allprojects {
      repositories {
          mavenCentral()
      }
  }
  
  apply plugin: 'android'
  apply plugin: 'android-apt'
  def AAVersion = '3.0.1'
  
  android {
      compileSdkVersion 19
      buildToolsVersion "19.1.0"
  
      defaultConfig {
          applicationId "x.y"
          minSdkVersion 14
          targetSdkVersion 19
          versionCode 1
          versionName "1.0"
  
      }
      sourceSets {
          main {
              manifest.srcFile 'AndroidManifest.xml'
              java.srcDirs = ['src']
              res.srcDirs = ['res']
          }
      }
  
      lintOptions {
          abortOnError false
      }
      productFlavors {
  
      }
  
      buildTypes {
  
      }
  }
  
  dependencies {
      compile 'com.android.support:support-v4:20.0.0'
      apt "org.androidannotations:androidannotations:$AAVersion"
      compile files('libs/androidannotations-3.0.1.jar')
      compile files('libs/androidannotations-api-3.0.1.jar')
  }
  </code></pre>
  
  <p>MyApp/app/build.gradle</p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 19
      buildToolsVersion "19.1.0"
  
      defaultConfig {
          applicationId "x.y"
          minSdkVersion 14
          targetSdkVersion 19
          versionCode 1
          versionName "1.0"
      }
      buildTypes {
          release {
  
          }
      }
  }
  
  dependencies {
      compile fileTree(dir: 'libs', include: ['*.jar'])
      compile 'com.android.support:support-v4:20.0.0'
  }
  </code></pre>
  
  <p>Manifest.xml</p>
  
  <pre><code>&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="x.y" &gt;
  
      &lt;application
          android:allowBackup="true"
          android:icon="@drawable/ic_launcher"
          android:label="@string/app_name"
          android:theme="@style/AppTheme" &gt;
          &lt;activity
              android:name=".view.Tabs"
              android:label="@string/app_name" &gt;
              &lt;intent-filter&gt;
                  &lt;action android:name="android.intent.action.MAIN" /&gt;
                  &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
              &lt;/intent-filter&gt;
          &lt;/activity&gt;
      &lt;/application&gt;
  &lt;/manifest&gt;
  </code></pre>