title: LocationManager: java.lang.NoSuchMethodError
body: <p>I'm new in this community but I already used to learn much from you! Actually I started programming on Android Studio but now I stuck somewhere. I'm sure it's something simple you will find out quick.</p>
  
  <p>In the Emulator Nexus 5 API 23 (the one already installed in Android Studio) it's working but on my mobile Android 5.1.1 API 22 it doensnt start.</p>
  
  <p><strong>Error</strong>:
  <code>09-20 19:15:11.526  17776-17776/com.example.stefano.aiutomamma01 E/AndroidRuntime﹕ FATAL EXCEPTION: main
      Process: com.example.stefano.aiutomamma01, PID: 17776
      java.lang.NoSuchMethodError: No virtual method checkSelfPermission(Ljava/lang/String;)I in class Lcom/example/stefano/aiutomamma01/MainActivity; or its super classes (declaration of 'com.example.stefano.aiutomamma01.MainActivity' appears in /data/app/com.example.stefano.aiutomamma01-2/base.apk)
              at com.example.stefano.aiutomamma01.MainActivity.onCreate(MainActivity.java:28)
              at android.app.Activity.performCreate(Activity.java:5990)
              at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
              at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2332)
              at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2442)
              at android.app.ActivityThread.access$800(ActivityThread.java:156)
              at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1351)
              at android.os.Handler.dispatchMessage(Handler.java:102)
              at android.os.Looper.loop(Looper.java:211)
              at android.app.ActivityThread.main(ActivityThread.java:5373)
              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:1020)
              at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:815)
  </code></p>
  
  <p>JAVA Code: </p>
  
  <pre><code>package com.example.stefano.aiutomamma01;
  
  import android.Manifest;
  import android.content.Context;
  import android.content.pm.PackageManager;
  import android.location.Location;
  import android.location.LocationListener;
  import android.location.LocationManager;
  import android.os.Bundle;
  import android.support.v7.app.AppCompatActivity;
  import android.view.Menu;
  import android.view.MenuItem;
  import android.widget.Toast;
  
  public class MainActivity extends AppCompatActivity implements LocationListener {
  
      //GPS
      private LocationManager locationManager;
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
  
          //GPS
          locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
          //CATCHED
          if (checkSelfPermission(Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &amp;&amp; checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
              // TODO: Consider calling
              //    public void requestPermissions(@NonNull String[] permissions, int requestCode)
              // here to request the missing permissions, and then overriding
              //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
              //                                          int[] grantResults)
              // to handle the case where the user grants the permission. See the documentation
              // for Activity#requestPermissions for more details.
              return;
          }
          locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this);
  
      }
  
      @Override
      public boolean onCreateOptionsMenu(Menu menu) {
          // Inflate the menu; this adds items to the action bar if it is present.
          getMenuInflater().inflate(R.menu.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);
      }
  
  
      //GPS
      @Override
      public void onLocationChanged(Location location) {
  
          String str = "Latitude: " + location.getLatitude() + "Longitude: " + location.getLongitude();
  
          Toast.makeText(getBaseContext(), str, Toast.LENGTH_LONG).show();
  
      }
  
      //GPS
      @Override
      public void onStatusChanged(String provider, int status, Bundle extras) {
  
      }
  
      //GPS
      @Override
      public void onProviderEnabled(String provider) {
  
      }
  
      //GPS
      @Override
      public void onProviderDisabled(String provider) {
  
      }
  
  }
  </code></pre>
  
  <p>Sorry for the bad post. Btw: I couldnt find solution in the web...</p>
  
  <p>Greetings</p>