title: NoClassDefFoundError: FingerprintManagerCompatApi23 after updating to API 23
body: <p>I updated by gradle to API 23 as well as the dependencies but when I tried running my app I get a NoClassDefFoundError:</p>
  
  <pre><code>10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime: FATAL EXCEPTION: main
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime: Process: com.aufmschoolbliz.app, PID: 11323
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime: java.lang.NoClassDefFoundError: android.support.v4.hardware.fingerprint.FingerprintManagerCompatApi23$1
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at java.lang.Class.classForName(Native Method)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at java.lang.Class.forName(Class.java:309)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at com.activeandroid.ReflectionUtils.getModelClasses(ReflectionUtils.java:83)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at com.activeandroid.DatabaseHelper.onCreate(DatabaseHelper.java:46)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:251)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:163)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at com.activeandroid.Registry.openDatabase(Registry.java:149)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at com.activeandroid.Registry.initialize(Registry.java:107)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at com.activeandroid.ActiveAndroid.initialize(ActiveAndroid.java:8)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at com.activeandroid.app.Application.onCreate(Application.java:9)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at com.aufmschoolbliz.app.SchoolBliz.onCreate(SchoolBliz.java:42)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1012)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4553)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at android.app.ActivityThread.access$1500(ActivityThread.java:151)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1364)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at android.os.Handler.dispatchMessage(Handler.java:102)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at android.os.Looper.loop(Looper.java:135)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at android.app.ActivityThread.main(ActivityThread.java:5254)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at java.lang.reflect.Method.invoke(Native Method)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at java.lang.reflect.Method.invoke(Method.java:372)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
  10-11 01:26:30.794 11323-11323/com.aufmschoolbliz.app E/AndroidRuntime:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
  </code></pre>
  
  <p>Grade file:</p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 23
      buildToolsVersion "23.0.1"
  
      defaultConfig {
          minSdkVersion 10
          targetSdkVersion 23
          versionCode 4
          versionName "2.1.1"
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
          }
      }
  }
  
  dependencies {
      compile fileTree(include: ['*.jar'], dir: 'libs')
      compile project(':numberPickerSupport')
      compile 'com.android.support:appcompat-v7:23.0.1'
      compile 'com.android.support:support-v4:23.0.1'
      compile 'com.android.support:cardview-v7:23.0.1'
      compile 'com.android.support:design:23.0.1'
      compile 'com.google.code.gson:gson:2.4'
      compile 'com.loopj.android:android-async-http:1.4.9'
  }
  </code></pre>
  
  <p>According to ianhanniballake, <a href="https://stackoverflow.com/a/32484445/2450000">https://stackoverflow.com/a/32484445/2450000</a>, it is because of the dependencies but I'm not using dynamic version number.</p>