title: Unable to find AppLovin SDK key. Please add meta-data android:name="applovin.sdk.key" android:value="YOUR_SDK_KEY_HERE" into AndroidManifest.xml
body: <p><strong>Hello everyone today I was busy with camera actions just applied rutin camera action on my application and apploving sdk key error actualy application is working but I need to know why I have this this warming on my android monitor</strong> </p>
  
  <p><strong>1. Here is my class where I start action and putExtra into intend</strong></p>
  
  <pre><code>public class CameraActionFragment extends Fragment 
  {
  
      private static final int REQUEST_CODE_IMG = 2;// for image
  
      private static final int REQUEST_CODE_VIDEO = 1;// for video
  
      public static final int RESULT_OK = -1;
  
      Button btn_frag_camera_image;
  
      Button btn_frag_camera;
  
      @Override
      public View onCreateView(LayoutInflater inflater, ViewGroup container,
                               Bundle savedInstanceState) {
          // Inflate the layout for this fragment
          View view = inflater.inflate(R.layout.fragment_camera_action_3, container, false);
          //return inflater.inflate(R.layout.fragment_camera_action_3, container, false);
          btn_frag_camera_image = (Button) view.findViewById(R.id.btn_frag_camera_image);
          btn_frag_camera = (Button) view.findViewById(R.id.btn_frag_camera);
  
          // Image Action
          btn_frag_camera_image.setOnClickListener(new View.OnClickListener() {
              @Override
              public void onClick(View v) {
                  Toast.makeText(getActivity(), "Hello From Image", Toast.LENGTH_SHORT).show();
                  Intent intenImatToSec = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                  startActivityForResult(intenImatToSec, REQUEST_CODE_IMG);
  
              }
          });
  
          // Camera Action
          btn_frag_camera.setOnClickListener(new View.OnClickListener() {
              @Override
              public void onClick(View v) {
                  Intent intenImatToSec = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
                  startActivityForResult(intenImatToSec, REQUEST_CODE_VIDEO);
                  //intenImatToSec.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);
                  //intenImatToSec.putExtra(MediaStore.EXTRA_DURATION_LIMIT, 10);
                  //Toast.makeText(getActivity(), "Hello From Camera", Toast.LENGTH_SHORT).show();
              }
          });
          return view;
      }
  
      @Override
      public void onActivityResult(int requestCode, int resultCode, Intent data) {
          if (resultCode == RESULT_OK) {
  
              if (requestCode == REQUEST_CODE_IMG) {
                  Bundle bundle = data.getExtras();
                  Bitmap bitmap = (Bitmap) bundle.get("data");
                  Intent intentBitMap = new Intent(getActivity(), DisplayImage.class);
                  // aldıgımız imagi burda yonlendirdiğimiz sınıfa iletiyoruz
                  ByteArrayOutputStream _bs = new ByteArrayOutputStream();
                  bitmap.compress(Bitmap.CompressFormat.PNG, 50, _bs);
                  intentBitMap.putExtra("byteArray", _bs.toByteArray());
                  startActivity(intentBitMap);
  
              } else if (requestCode == REQUEST_CODE_VIDEO) {
                  Uri videoUrl = data.getData();
                  Intent intenToDisplayVideo = new Intent(getActivity(), DisplayVideo.class);
                  intenToDisplayVideo.putExtra("videoUri", videoUrl.toString());
                  startActivity(intenToDisplayVideo);
              }
          }
      } }
  </code></pre>
  
  <p><strong>1. And I play my video here</strong></p>
  
  <pre><code>public class DisplayVideo extends Activity 
  {
      private static final int REQUEST_CODE_VIDEO = 100;
  
      VideoView videoView;
  
      Button btn_cancel;
  
      Button btn_send_cahallenge;
  
      Button btn_image_play;
  
      @Override
      public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.display_video_activity);
  
          videoView = (VideoView) findViewById(R.id.videoview_display_video_actvity);
          btn_cancel = (Button) findViewById(R.id.btn_display_image_cancel);
          btn_send_cahallenge = (Button) findViewById(R.id.btn_display_image_send_cahallenge);
          btn_image_play = (Button) findViewById(R.id.btn_display_image_play);
  
          // CameraActionFragmentten gelen uri
          Bundle extras = getIntent().getExtras();
          Uri myUri = Uri.parse(extras.getString("videoUri"));
          videoView.setVideoURI(myUri);
  
          btn_image_play.setOnClickListener(new View.OnClickListener() {
              @Override
              public void onClick(View v) {
                  videoView.start();
              }
          });
          btn_cancel.setOnClickListener(new View.OnClickListener() {
              @Override
              public void onClick(View v) {
                  SharedPreferences shp = getSharedPreferences("pref", MODE_PRIVATE);
                  SharedPreferences.Editor editor = shp.edit();
                  editor.putInt("frag_no", 2);
                  editor.commit();
  
                  startActivity(new Intent(getApplicationContext(), HomeActivity.class));
              }
          });
  
      }
  
      @Override
      protected void onActivityResult(int requestCode, int resultCode, Intent data) {
          if (requestCode == REQUEST_CODE_VIDEO &amp;&amp; resultCode == RESULT_OK) {
              Uri videoUrl = data.getData();
              videoView.setVideoURI(videoUrl);
              //videoView.setMediaController(new MediaController(getApplicationContext()));
              //videoView.requestFocus();
  
          }
  
  
      }
  
  
  }
  </code></pre>
  
  <p><strong>3. Cant find some usefull guide about AppLovin SDK key. Lately I
      defined facebook sdk key and everything was good and after camera
      actions ı have this problem</strong></p>
  
  <p><strong>Error is</strong></p>
  
  <pre><code> E/AppLovinSdk: Unable to find AppLovin SDK key. Please add     meta-data android:name="applovin.sdk.key" android:value="YOUR_SDK_KEY_HERE" into AndroidManifest.xml.
  07-29 16:24:26.390 12911-12911/? E/AppLovinSdk: Called with an invalid SDK key from: java.lang.Throwable: 
                                                      at com.applovin.impl.sdk.AppLovinSdkImpl.a(Unknown Source)
                                                      at com.applovin.sdk.AppLovinSdk.b(Unknown Source)
                                                      at com.applovin.sdk.AppLovinSdk.c(Unknown Source)
                                                      at com.applovin.sdk.AppLovinSdk.b(Unknown Source)
                                                      at com.qihoo.security.SecurityApplication.onCreate(360Security:263)
                                                      at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1014)
                                                      at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4806)
                                                      at android.app.ActivityThread.access$1600(ActivityThread.java:154)
                                                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1452)
                                                      at android.os.Handler.dispatchMessage(Handler.java:102)
                                                      at android.os.Looper.loop(Looper.java:234)
                                                      at android.app.ActivityThread.main(ActivityThread.java:5526)
                                                      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)
  </code></pre>