Битый час не могу понять почему студия подчеркивает return new ProfessionListLoader(MainActivity.this); и не дает запустить приложение.

import android.os.Bundle; import android.support.v4.app.LoaderManager; import android.support.v4.content.Loader; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.view.Menu; import android.view.MenuItem; import android.widget.ArrayAdapter; import android.widget.ListView; import com.tanat.english_for_professions.R; import com.tanat.english_for_professions.loader.ProfessionListLoader; import java.util.ArrayList; import butterknife.BindView; import butterknife.ButterKnife;  public class MainActivity extends AppCompatActivity implements LoaderManager.LoaderCallbacks<ArrayList<String>> {     private int LOADER_ID = 0;      @BindView(R.id.professionList)     ListView professionList;     @BindView(R.id.toolbar)     Toolbar toolbar;      @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main_activity);         ButterKnife.bind(this);         setSupportActionBar(toolbar);         loadData();     }      @Override     public boolean onCreateOptionsMenu(Menu menu) {         getMenuInflater().inflate(R.menu.menu_main, menu);         return true;     }      @Override     public boolean onOptionsItemSelected(MenuItem item) {         int id = item.getItemId();          if (id == R.id.action_settings) {             return true;         }         return super.onOptionsItemSelected(item);     }      @Override     public Loader<ArrayList<String>> onCreateLoader(int id, Bundle args) {         return new ProfessionListLoader(MainActivity.this);     }      @Override     public void onLoadFinished(Loader<ArrayList<String>> loader, ArrayList<String> data) {      }      @Override     public void onLoaderReset(Loader<ArrayList<String>> loader) {      }      private void loadData() {         ArrayList data = null;         if (data == null || data.size() == 0) {             getSupportLoaderManager().initLoader(LOADER_ID, null, this);         } else {             createListAdapter(data);         }     }      public void createListAdapter(ArrayList data) {         ArrayAdapter<String> adapter;         if (data != null) {             adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, data);             professionList.setAdapter(adapter);         }     } } 

Loader:

import android.content.AsyncTaskLoader; import android.content.Context; import android.util.Log; import com.tanat.english_for_professions.R; import com.tanat.english_for_professions.utils.JsonDisperse; import org.json.JSONException; import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; import java.util.ArrayList;  public class ProfessionListLoader extends AsyncTaskLoader<ArrayList<String>> {     private Context context;      public ProfessionListLoader(Context context) {         super(context);         this.context = context;     }      String jsonString = "";     InputStream inputStream;     HttpURLConnection urlConnection = null;     BufferedReader reader = null;      @Override     public ArrayList<String> loadInBackground() {         try {             URL url = new URL("url-url-url");              urlConnection = (HttpURLConnection) url.openConnection();             urlConnection.setRequestMethod("GET");             urlConnection.connect();              inputStream = url.openConnection().getInputStream();             StringBuffer buffer = new StringBuffer();             reader = new BufferedReader(new InputStreamReader(inputStream));              String line;             while ((line = reader.readLine()) != null) {                 buffer.append(line);             }             jsonString = buffer.toString();         } catch (Exception e) {             e.printStackTrace();             return null;         }         Log.d("loader", jsonString);         JsonDisperse jsonDisperse = new JsonDisperse();         jsonDisperse.saveStaticString(jsonString);          try {             return jsonDisperse.getListProfession(Integer.parseInt(context.getString(R.string.language)));         } catch (JSONException e) {             e.printStackTrace();             return null;         }     } } 

Помогите пожалуйста.