Why Unable to start activity ComponentInfo with LogIn Facebook?

I'm trying to register using facebook ... I found an example and here I’m doing it, the only difference is that the example shows how to put the button in the fragment, and I do it without a fragment. I implemented the library, I wrote permishny, I did everything and everything loads and shows, but as soon as I insert the button in the XML file that facebook itself gives

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" app:layout_behavior="@string/appbar_scrolling_view_behavior" tools:context="com.stoun.life.first.facebooklogin.MainActivity" tools:showIn="@layout/app_bar_main"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Hello World!" /> <com.facebook.login.widget.LoginButton android:id="@+id/login_button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:layout_marginTop="30dp" android:layout_marginBottom="30dp" /> </RelativeLayout> 

Activation code

 public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); FacebookSdk.sdkInitialize(getApplicationContext()); AppEventsLogger.activateApp(this); LoginButton loginButton = (LoginButton) findViewById(R.id.login_button); FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); fab.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG) .setAction("Action", null).show(); } }); DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); ActionBarDrawerToggle toggle = new ActionBarDrawerToggle( this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close); drawer.setDrawerListener(toggle); toggle.syncState(); NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view); navigationView.setNavigationItemSelectedListener(this); } @Override public void onBackPressed() { DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); if (drawer.isDrawerOpen(GravityCompat.START)) { drawer.closeDrawer(GravityCompat.START); } else { super.onBackPressed(); } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); //noinspection SimplifiableIfStatement if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } @SuppressWarnings("StatementWithEmptyBody") @Override public boolean onNavigationItemSelected(MenuItem item) { // Handle navigation view item clicks here. int id = item.getItemId(); if (id == R.id.nav_camera) { // Handle the camera action } else if (id == R.id.nav_gallery) { } else if (id == R.id.nav_slideshow) { } else if (id == R.id.nav_manage) { } else if (id == R.id.nav_share) { } else if (id == R.id.nav_send) { } DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); drawer.closeDrawer(GravityCompat.START); return true; } } 

then everything crashes with an error

-03 10: 30: 25.748 30649-30649 /? I / art: Late-enabling -Xcheck: jni 05-03 10: 30: 25.788 30649-30649 /? D / TimaKeyStoreProvider: TimaSignature is unavailable 05-03 10: 30: 25.788 30649-30649 /? D / ActivityThread: Added TimaKeyStore provider 05-03 10: 30: 25.868 30649-30649 / com.stoun.life.first.facebooklogin D / ResourcesManager: creating new AssetManager and set to /data/app/com.stoun.life.first .facebooklogin-1 / base.apk 05-03 10: 30: 25.968 30649-30649 / com.stoun.life.first.facebooklogin D / KeyHash :: 1tY8plXu6Ae5AiW2u5nfNxuAkoA = 05-03 10: 30: 26.208 30649-30649 / com. stoun.life.first.facebooklogin W / art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter (android.graphics.PorterDuffColorFilter, android.content.res.Colorus, yours. .PorterDuff $ Mode) android.graphics.drawable.Drawable 05-03 10: 30: 26.248 30649-30649 / com.stoun.life.first.facebooklogin V / BitmapFactory: DecodeImagePath (decodeResourceStream3 ): res / drawable-xxhdpi-v4 / com_facebook_button_icon_blue.png 05-03 10: 30: 26.258 30649-30649 / com.stoun.life.first.facebooklogin V / BitmapFactory: DecodeImagePath (decodeResourceStream3): res / drawable-xxhdpi-v4 / com_facebook_button_icon_white.png 05-03 10: 30: 26.268 30649-30649 / com.stoun.life.first.facebooklogin D / AndroidRuntime: Shutting down VM 05 10: 30: 26.268 30649-30649 / com.stoun.life.first.facebooklogin E / AndroidRuntime: FATAL EXCEPTION: main Process: com.stoun.life.first.facebooklogin, PID: 30649 java.lang.RuntimeException: Unable to start activity ComponentInfo {com.stoun.life.first.facebooklogin / com.stoun.life.first.facebooklogin.MainActivity}: android.view.InflateException: Binary XML file line # 20: Error inflating class com.facebook.login.widget. LoginButton at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:2658) at android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:2723) at android.app.ActivityThread.access $ 900 (ActivityThread.java:172) at android. app.ActivityThread $ H.handleMessage (ActivityThread.java:1422) at android.os.Handler.dispatchMessage (Handler.java:102) at a ndroid.os.Looper.loop (Looper.java:145) at android.app.ActivityThread.main (ActivityThread.java:5832) at java.lang.reflect.Method.invoke (Native Method) at java.lang.reflect. Method.invoke (Method.javaUE7272) at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run (ZygoteInit.java:1399) at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1194) Caused by: android.view.InflateException: Binary XML file line # 20: Error inflating class com.facebook.login.widget.LoginButton at android.view.LayoutInflater.createView (LayoutInflater.java:640) at android.view.LayoutInflater. createViewFromTag (LayoutInflater.java:750) at android.view.LayoutInflater.rInflate (LayoutInflater.java:813) at android.view.LayoutInflater.parseInclude (LayoutInflater.java:933) at android.view.LayoutInflater.rInrInrInrInrArntrInlterInflater.rlaf. : 809) at android.view.LayoutInflater.parseInclude (LayoutInflater.java:933) at android.view.LayoutInflater.rInflate (LayoutInflater.java:809) at android.view.LayoutInflater.inflate (LayoutIn flater.javaive11) at android.view.LayoutInflater.inflate (LayoutInflater.java:4) 15 at android.view.LayoutInflater.inflate (LayoutInflater.javaUE66) at android.support.v7.app.AppCompatDelegateImplV7.setContentView, appetheapper.eppate.v7.app. .java: 276) at android.support.v7.app.AppCompatActivity.setContentView (AppCompatActivity.java:136) at com.stoun.life.first.facebooklogin.MainActivity.onCreate (MainActivity.java:26) at android.app. Activity.performCreate (Activity.java:6221) at android.app.Instrumentation.callActivityOnCreate (Instrumentation.java:1119) at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:2611) at android.app.ActivityThread.handleLaunchActivity (ActivityThread .java: 2723) at android.app.ActivityThread.access $ 900 (ActivityThread.java:172) at android.app.ActivityThread $ H.handleMessage (ActivityThread.java:1422) at android.os.Handler.dispatchMessage (Handler.java : 102) at android.os.Looper.loop (Looper.java:14 5) at android.app.ActivityThread.main (ActivityThread.java 12.83 2) at java.lang.reflect.Method.invoke (Native Method) at java.lang.reflect.Method.invoke (Method.java.0672) at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run (ZygoteInit. java: 1399) at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1194) Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Constructor.newInstance (Native Method) at java. lang.reflect.Constructor.newInstance. .rInflate (LayoutInflater.java:813) at android.view.LayoutInflater.parseInclude (LayoutInflater.java:933) at android.view.LayoutInflater.rInflate (LayoutInflater.java:809) at android.view.LayoutInflater. java: 933) at android.view.LayoutInflater.rInflate (LayoutInflater.java:809) at android.view.LayoutInflater.inflate (LayoutInflater.java Redu11) at android.view.LayoutInfl ater. .app.AppCompatActivity.setContentView (AppCompatActivity.java:136) at com.stoun.life.first.facebooklogin.MainActivity.onCreate (MainActivity.java:26) at android.app.Activity.performCreate (Activity.java:6221) at android.app.Instrumentation.callActivityOnCreate (Instrumentation.java:1119) at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:2611) at android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:2723) at android.app.ActivityThread .access $ 900 (ActivityThread.java:172) at android.app.ActivityThread $ H.handleMessage (ActivityThread.java:1422) at android.os.Handler.dispatchMessage (Handler.java:102) at android.os.Looper.loop (Looper.java:145) at android.app.ActivityThread.main (ActivityThread.java:5832) at java.lang.reflect.Method.invoke (Nativ e Method) at java.lang.reflect.Method.invoke (Method.javaUE72) at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run (ZygoteInit.java:1399) at com.android.internal.os. ZygoteInit.main (ZygoteInit.java:1194) Caused by: The SDK has not been initialized, make sure to call FacebookSdk.sdkInitialize () first. at com.facebook.internal.Validate.sdkInitialized (Validate.java:145) at com.facebook.AccessTokenTracker. (AccessTokenTracker.java:55) at com.facebook.login.widget.LoginButton $ 2. (LoginButton.javareek63) at com.facebook.login.widget.LoginButton.configureButton (LoginButton.javament63) at com.facebook.FacebookButtonBase. (FacebookButtonBase.java:69) at com.facebook.login.widget.LoginButton. (LoginButton.java Region01 ) at java.lang.reflect.Constructor.newInstance (Native Method) at java.lang.reflect.Constructor.newInstance (Constructor.java:288) at android.view.LayoutInflater.createView (LayoutInflater.java:614) at android. view.LayoutInflater. (LayoutInflater.java:809) at android.view.LayoutInflater.parseInclude (LayoutInflater.java:933) at android.view.LayoutInflater.rInflate (LayoutInflater.java : 809) at android.view.LayoutInflater.inflate (LayoutInflater.java sources11) at android.view.LayoutInflater.inflate (LayoutInflater.java:415) at android.view.LayoutInflater.inflate (LayoutInflater.java I66) at android .support.v7.app.AppCompatDelegateImplV7.setContentView (AppCompatDelegateImplV7.java:276) at android.support.v7.app.AppCompatActivity.setContentView (AppCompatActivity.java:136) at com.stoun.life.fust.pdf.emr.defateapproveView (AppCompatActivity.java:136) at com.stoun.life.fust.pdf.appr.AppCompatActivity.mp.AppCompatDelegateImplV7.setConv.View. (MainActivity.java:26) at android.app.Activity.performCreate (Activity.java:6221) at android.app.Instrumentation.callActivityOnCreate (Instrumentation.java:1119) at android.app.ActivityThread.performLaunchActivity (ActivityThread.java: 2611) at android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:2723) at android.app.ActivityThread.access $ 900 (ActivityThread.java:172) at android.app.ActivityThread $ H.handleMessage (ActivityThread.java:1422) at android.os.Handler.dispatchMessage (Handler.java:102) at android.os.Looper.loop (Looper.java:145) at an droid.app.ActivityThread.main (ActivityThread.java:5832) at java.lang.reflect.Method.invoke (Native Method) at java.lang.reflect.Method.invoke (Method.java true72)

What do I need to add or change so that the error does not crash?