title: new Android Studio update [0.5.0]
body: <p>A couple of days a ago a new Android Studio update was released. I installed it, and since then nothing seems to work. Everything worked fine before, but now I get a couple of errors. </p>
  
  <p>Especially in the Manifest</p>
  
  <pre class="lang-xml prettyprint-override"><code>&lt;application
       android:allowBackup="true"
       android:icon="@drawable/ic_launcher"
       android:label="@string/app_name"
       android:theme="@style/AppTheme" &gt;
       &lt;activity
           android:name="com.example.app.MainActivity"
           android:label="@string/app_name"
           android:screenOrientation="portrait" &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;activity
          android:name="com.example.app.1"
          android:label="@string/title_activity_1"
          android:screenOrientation="portrait" &gt;
      &lt;/activity&gt;
      &lt;activity
          android:name="com.example.app.2"
          android:label="@string/title_activity_2"
          android:screenOrientation="portrait" &gt;
      &lt;/activity&gt;
      &lt;activity
          android:name="com.example.app.3"
          android:label="@string/title_activity_3" &gt;
      &lt;/activity&gt;`
  </code></pre>
  
  <p>Every <code>com.example.app</code> is marked red with the error </p>
  
  <blockquote>
    <p>com.example.app.xxxxx' is not assignable to 'android.app.Activity'</p>
  </blockquote>
  
  <p>When I try to start my app a red box tells me the following: </p>
  
  <blockquote>
    <p>Error running app: Gradle profect sync failed. Please fix your profect and try again.</p>
  </blockquote>
  
  <p>But how can I fix my project? I really don't want to start from the beginning - I am nearly finished ... </p>
  
  <p>build.gradle:</p>
  
  <pre><code> apply plugin: 'android'
  
   android {
       compileSdkVersion 19
       buildToolsVersion "19.0.1"
  
       defaultConfig {
           minSdkVersion 9
           targetSdkVersion 16
           versionCode 1
           versionName "1.0"
       }
       buildTypes {
           release {
               runProguard false
               proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
           }
       }
   }
  
   dependencies {
       compile 'com.android.support:appcompat-v7:+'
       compile 'com.android.support:support-v4:19.0.1'
   }
  </code></pre>
  
  <p>EDIT : </p>
  
  <p>I don't know why, but the SO editor isn't showing the full code I wanted to post correctly .... </p>