title: App crashes after reinstall on emulator since FileProvider Class was not found
body: <p>When I run the app on the emulator it always works on the first try. But when the app is already installed on the emulator it often results in a crash during the start of the app.
  This behavior started to occur with Android Studio 2.0.
  It does not occur on devices, therefore it is not so important but only annoying since I always need to delete the app from the emulator before installing a new version.</p>
  
  <p>Since I have absolutely no idea what causes this issue and can't find similar issues during research, I hope that somebody can help me.</p>
  
  <p>Error message:</p>
  
  <pre><code>08-25 09:55:35.023 4214-4214/? E/AndroidRuntime: FATAL EXCEPTION: main
      Process: com.mls.Search.Abbott, PID: 4214
      java.lang.RuntimeException: Unable to get provider android.support.v4.content.FileProvider: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.content.FileProvider" on path: DexPathList[[zip file "/data/app/com.mls.Search.Abbott-2/base.apk"],nativeLibraryDirectories=[/data/app/com.mls.Search.Abbott-2/lib/x86, /data/app/com.mls.Search.Abbott-2/base.apk!/lib/x86, /vendor/lib, /system/lib]]
          at android.app.ActivityThread.installProvider(ActivityThread.java:5156)
          at android.app.ActivityThread.installContentProviders(ActivityThread.java:4748)
          at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4688)
          at android.app.ActivityThread.-wrap1(ActivityThread.java)
          at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1405)
          at android.os.Handler.dispatchMessage(Handler.java:102)
          at android.os.Looper.loop(Looper.java:148)
          at android.app.ActivityThread.main(ActivityThread.java:5417)
          at java.lang.reflect.Method.invoke(Native Method)
          at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
          at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
      Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.content.FileProvider" on path: DexPathList[[zip file "/data/app/com.mls.Search.Abbott-2/base.apk"],nativeLibraryDirectories=[/data/app/com.mls.Search.Abbott-2/lib/x86, /data/app/com.mls.Search.Abbott-2/base.apk!/lib/x86, /vendor/lib, /system/lib]]
          at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
          at android.app.ActivityThread.installProvider(ActivityThread.java:5141)
          at android.app.ActivityThread.installContentProviders(ActivityThread.java:4748) 
          at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4688) 
          at android.app.ActivityThread.-wrap1(ActivityThread.java) 
          at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1405) 
          at android.os.Handler.dispatchMessage(Handler.java:102) 
          at android.os.Looper.loop(Looper.java:148) 
          at android.app.ActivityThread.main(ActivityThread.java:5417) 
          at java.lang.reflect.Method.invoke(Native Method) 
          at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
          at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
      Suppressed: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.content.FileProvider" on path: DexPathList[[dex file "/data/data/com.mls.Search.Abbott/files/instant-run/dex/slice-slice_3-classes.dex"],nativeLibraryDirectories=[/data/app/com.mls.Search.Abbott-2/lib/x86, /data/app/com.mls.Search.Abbott-2/base.apk!/lib/x86, /vendor/lib, /system/lib]]
          at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
          at com.android.tools.fd.runtime.IncrementalClassLoader$DelegateClassLoader.findClass(IncrementalClassLoader.java:90)
          at com.android.tools.fd.runtime.IncrementalClassLoader.findClass(IncrementalClassLoader.java:62)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
                ... 12 more
              Suppressed: java.lang.ClassNotFoundException: android.support.v4.content.FileProvider
          at java.lang.Class.classForName(Native Method)
          at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
          at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
                  ... 13 more
      Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
  </code></pre>
  
  <p>File Provider in Manifest:</p>
  
  <pre><code>&lt;provider
      android:name="android.support.v4.content.FileProvider"
      android:authorities="${applicationId}.fileprovider"
      android:exported="false"
      android:grantUriPermissions="true"&gt;
      &lt;meta-data
          android:name="android.support.FILE_PROVIDER_PATHS"
          android:resource="@xml/filepaths" /&gt;
  &lt;/provider&gt;
  </code></pre>