title: Invalid drawable tag vector
body: <p>Im trying to use vector drawables on pre lollipop devices. I did all as instructed <a href="https://medium.com/@chrisbanes/appcompat-v23-2-age-of-the-vectors-91cbafa87c88#.1n8w97x4a">here</a> but i still get this crash.  </p>
  
  <p><strong><em>build.gradle:</em></strong></p>
  
  <pre><code>buildscript {
      repositories {
          jcenter()
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:2.0.0-beta6'
      }
  }
  apply plugin: 'com.android.application'
  
  repositories {
      maven { url 'http://maven.android-forever.com' }
      jcenter()
  }
  
  android {
      compileSdkVersion 23
      buildToolsVersion "23.0.2"
  
      defaultConfig {
          applicationId "com.test.app"
          minSdkVersion 16
          targetSdkVersion 22
          versionCode 1
          versionName "1.0"
          vectorDrawables.useSupportLibrary = true
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  }
  
  dependencies {
      compile fileTree(dir: 'libs', include: ['*.jar'])
      testCompile 'junit:junit:4.12'
      compile 'com.android.support:appcompat-v7:23.2.0'
      compile 'com.android.support:design:23.2.0'
      compile "de.greenrobot:eventbus:2.4.0"
      compile 'de.greenrobot:greendao:2.1.0'
      compile "com.af:android-utility:1.0.0.9"
      compile project(':volleyplus')
      compile project (':libvlc')
  }
  </code></pre>
  
  <p>triangle.xml:  </p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;selector xmlns:android="http://schemas.android.com/apk/res/android"&gt;
      &lt;item android:drawable="@drawable/triangle_v"/&gt;
  &lt;/selector&gt;
  </code></pre>
  
  <p><em>triangle_v.xml</em></p>
  
  <pre><code>&lt;vector xmlns:android="http://schemas.android.com/apk/res/android"
      android:height="100dp"
      android:width="100dp"
      android:viewportHeight="100"
      android:viewportWidth="100"&gt;
  
  &lt;path
      android:name="triangle"
      android:fillColor="#FF0000"
      android:pathData="m 50,0 l 50,100 -100,0 z"/&gt;
  
  &lt;/vector&gt;
  </code></pre>
  
  <p><em>layout.xml</em>  </p>
  
  <pre><code>&lt;ImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@drawable/triangle"/&gt;
  </code></pre>
  
  <p>I also tried <code>app:srcCompat</code> and in that case, drawable just dont show.</p>