Android.app.Fragment $ InstantiationException: Tratando de instanciar una clase ScannerFragment que no es un fragmento

He actualizado algunas bibliotecas en app.gradle como la biblioteca de soporte de 22.2.0 -> 23.0.0 y versiones de algunas bibliotecas de terceros, y ahora estoy recibiendo el siguiente error de ejecución en una actividad en particular:

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.shubhamkanodia.bookmybook/com.example.shubhamkanodia.bookmybook.AddBooksActivity_}: android.view.InflateException: Binary XML file line #155: Error inflating class fragment at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2339) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2413) at android.app.ActivityThread.access$800(ActivityThread.java:155) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1317) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5343) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700) Caused by: android.view.InflateException: Binary XML file line #155: Error inflating class fragment at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:763) at android.view.LayoutInflater.rInflate(LayoutInflater.java:806) at android.view.LayoutInflater.rInflate(LayoutInflater.java:809) at android.view.LayoutInflater.rInflate(LayoutInflater.java:809) at android.view.LayoutInflater.rInflate(LayoutInflater.java:809) at android.view.LayoutInflater.inflate(LayoutInflater.java:504) at android.view.LayoutInflater.inflate(LayoutInflater.java:414) at android.view.LayoutInflater.inflate(LayoutInflater.java:365) at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:257) at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109) at com.example.shubhamkanodia.bookmybook.AddBooksActivity_.setContentView(AddBooksActivity_.java:56) at com.example.shubhamkanodia.bookmybook.AddBooksActivity.onCreate(AddBooksActivity.java:140) at com.example.shubhamkanodia.bookmybook.AddBooksActivity_.onCreate(AddBooksActivity_.java:46) at android.app.Activity.performCreate(Activity.java:6010) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1129) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2292)             at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2413)             at android.app.ActivityThread.access$800(ActivityThread.java:155)             at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1317)             at android.os.Handler.dispatchMessage(Handler.java:102)             at android.os.Looper.loop(Looper.java:135)             at android.app.ActivityThread.main(ActivityThread.java:5343)             at java.lang.reflect.Method.invoke(Native Method)             at java.lang.reflect.Method.invoke(Method.java:372)             at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905)             at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700) Caused by: android.app.Fragment$InstantiationException: Trying to instantiate a class com.example.shubhamkanodia.bookmybook.Fragments.ScannerFragment that is not a Fragment at android.app.Fragment.instantiate(Fragment.java:606) at android.app.Fragment.instantiate(Fragment.java:582) at android.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2110) at android.app.Activity.onCreateView(Activity.java:5348) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:733)             at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)             at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)             at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)             at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)             at android.view.LayoutInflater.inflate(LayoutInflater.java:504)             at android.view.LayoutInflater.inflate(LayoutInflater.java:414)             at android.view.LayoutInflater.inflate(LayoutInflater.java:365)             at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:257)             at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109)             at com.example.shubhamkanodia.bookmybook.AddBooksActivity_.setContentView(AddBooksActivity_.java:56)             at com.example.shubhamkanodia.bookmybook.AddBooksActivity.onCreate(AddBooksActivity.java:140)             at com.example.shubhamkanodia.bookmybook.AddBooksActivity_.onCreate(AddBooksActivity_.java:46)             at android.app.Activity.performCreate(Activity.java:6010)             at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1129)             at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2292)             at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2413)             at android.app.ActivityThread.access$800(ActivityThread.java:155)             at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1317)             at android.os.Handler.dispatchMessage(Handler.java:102)             at android.os.Looper.loop(Looper.java:135)             at android.app.ActivityThread.main(ActivityThread.java:5343)             at java.lang.reflect.Method.invoke(Native Method)             at java.lang.reflect.Method.invoke(Method.java:372)             at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905)             at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700) Caused by: java.lang.ClassCastException             at android.app.Fragment.instantiate(Fragment.java:606)             at android.app.Fragment.instantiate(Fragment.java:582)             at android.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2110)             at android.app.Activity.onCreateView(Activity.java:5348)             at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:733)             at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)             at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)             at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)             at android.view.LayoutInflater.rInflate(LayoutInflater.java:809)             at android.view.LayoutInflater.inflate(LayoutInflater.java:504)             at android.view.LayoutInflater.inflate(LayoutInflater.java:414)             at android.view.LayoutInflater.inflate(LayoutInflater.java:365)             at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:257)             at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109)             at com.example.shubhamkanodia.bookmybook.AddBooksActivity_.setContentView(AddBooksActivity_.java:56)             at com.example.shubhamkanodia.bookmybook.AddBooksActivity.onCreate(AddBooksActivity.java:140)             at com.example.shubhamkanodia.bookmybook.AddBooksActivity_.onCreate(AddBooksActivity_.java:46)             at android.app.Activity.performCreate(Activity.java:6010)             at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1129)             at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2292)             at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2413)             at android.app.ActivityThread.access$800(ActivityThread.java:155)             at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1317)             at android.os.Handler.dispatchMessage(Handler.java:102)             at android.os.Looper.loop(Looper.java:135)             at android.app.ActivityThread.main(ActivityThread.java:5343)             at java.lang.reflect.Method.invoke(Native Method)             at java.lang.reflect.Method.invoke(Method.java:372)             at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905)             at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700) 

En particular, esta línea parece extraña:

 Caused by: android.app.Fragment$InstantiationException: Trying to instantiate a class com.example.shubhamkanodia.bookmybook.Fragments.ScannerFragment that is not a Fragment 

(ScannerFragment es un fragmento que implementa el escáner de código de barras dm77 que actualizé de 1.7.2 a 1.8.2)

Fragmento del escáner:

 import android.support.v4.app.DialogFragment; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.Toast; import me.dm7.barcodescanner.zbar.BarcodeFormat; import me.dm7.barcodescanner.zbar.Result; import me.dm7.barcodescanner.zbar.ZBarScannerView; public class ScannerFragment extends Fragment implements MessageDialogFragment.MessageDialogListener, ZBarScannerView.ResultHandler, FormatSelectorDialogFragment.FormatSelectorDialogListener, CameraSelectorDialogFragment.CameraSelectorDialogListener { public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle state) { mScannerView = new ZBarScannerView(getActivity()); //stuff return mScannerView; } @Override public void onActivityCreated(Bundle state){ super.onCreate(state); //stuff } @Override public void onCreate(Bundle state) { super.onCreate(state); setHasOptionsMenu(true); } public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { super.onCreateOptionsMenu(menu, inflater); //stuff } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle presses on the action bar items //stuff } @Override public void onResume() { super.onResume(); //stuff } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); //stuff } @Override public void handleResult(Result rawResult) { //stuff } @Override public void onPause() { super.onPause(); //stuff } 

Snippet XML:

 <FrameLayout android:id="@+id/flScan" android:layout_width="match_parent" android:layout_height="match_parent"> <fragment android:id="@+id/fScanner" class="com.example.shubhamkanodia.bookmybook.Fragments.ScannerFragment" android:layout_width="match_parent" android:layout_height="match_parent" /> <RelativeLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="20dp" android:layout_marginTop="8dp" android:background="@color/transparent" android:padding="12dp"> <ImageButton android:id="@+id/ibAutofocus" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:background="@drawable/ripple_light" android:clickable="true" android:contentDescription="Enable / Disable Autofocus" android:longClickable="true" android:padding="8dp" android:src="@mipmap/ic_action_auto_focus_on" /> <ImageButton android:id="@+id/ibFlashControl" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_toLeftOf="@id/ibAutofocus" android:background="@drawable/ripple_light" android:clickable="true" android:contentDescription="Enable / Disable Flash" android:longClickable="true" android:padding="8dp" android:src="@mipmap/ic_action_image_flash_off" /> </RelativeLayout> </FrameLayout> 

¡Cualquier ayuda sería apreciada!

Intente importar android.app.Fragment lugar de android.support.v4.app.Fragment básicamente, no utilice la biblioteca de soporte si no lo necesita 'o compruebe que Actividad en la que está inflando este fragmento acerca de: Si está utilizando El FragmentManager y FragmentTransaction sólo de la biblioteca de soporte.

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