Cette Activité a déjà une barre d'action fourni par la fenêtre le décor?

Je développe une application android dans matrial de conception.Je suis en train d'utiliser la barre d'outils la barre d'action de mon application.mais lors de l'exécution de l'app, je crasging & obtenez l'erreur.

Caused by: java.lang.IllegalStateException: This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead.

J'ai déjà passé par ces liens, mais pas de travail
lien link2

style.xml

<style name="AppTheme" parent="AppTheme.Base" />

<style name="AppTheme.Base" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="colorPrimary">@color/primary</item>
    <item name="colorPrimaryDark">@color/primaryDarker</item>
    <item name="android:windowNoTitle">true</item>
    <item name="android:windowActionBar">false</item>
    <item name="drawerArrowStyle">@style/DrawerArrowStyle</item>
</style>

<style name="DrawerArrowStyle" parent="Widget.AppCompat.DrawerArrowToggle">
    <item name="spinBars">true</item>
    <item name="color">@android:color/white</item>
</style>

<color name="primary">#457C50</color>
<color name="primaryDarker">#580C0C</color>

MianActivity.java

public class MainActivity extends ActionBarActivity {

    Toolbar toolbar;
    DrawerLayout mDrawerLayout;
    FrameLayout mainView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        toolbar = (android.support.v7.widget.Toolbar) findViewById(R.id.toolbar);
        mainView=(FrameLayout)findViewById(R.id.frame_container);
        ActionBarDrawerToggle actionBarDrawerToggle = new ActionBarDrawerToggle(
                this,
                mDrawerLayout,
                toolbar,
                R.string.app_name,
                R.string.app_name
        )

        {
            public void onDrawerClosed(View view)
            {
                super.onDrawerClosed(view);
                invalidateOptionsMenu();
                syncState();
            }

            public void onDrawerOpened(View drawerView)
            {
                super.onDrawerOpened(drawerView);
                invalidateOptionsMenu();
                syncState();
            }
            @Override
            public void onDrawerSlide(View drawerView, float slideOffset) {
                //TODO Auto-generated method stub
                super.onDrawerSlide(drawerView, slideOffset);
                mainView.setTranslationX(slideOffset * drawerView.getWidth());
                    mDrawerLayout.bringChildToFront(drawerView);
                    mDrawerLayout.requestLayout();

            }
        };
        mDrawerLayout.setDrawerListener(actionBarDrawerToggle);

        //Set the custom toolbar
        if (toolbar != null){
             setSupportActionBar(toolbar);
        }



        actionBarDrawerToggle.syncState();
    }
}

manifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.myapp"
    android:versionCode="1"
    android:versionName="1.0"
     >

    <uses-sdk
        android:minSdkVersion="14"
        android:targetSdkVersion="21" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.SET_WALLPAPER" />

    <application
        android:name="com.example.myapp.app.AppController"
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme"
         >
        <activity
            android:name=".Login"
            android:label="@string/app_name"
            android:windowSoftInputMode="stateVisible|adjustResize" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
         <activity android:name="com.example.myapp.MainActivity" >
        </activity> 
    </application>

</manifest>

OriginalL'auteur Rahul Batra | 2015-05-06