- Fixed Build Error

import android.content.DialogInterface.OnClickListener;

import android.content.SharedPreferences;

import android.content.SharedPreferences.OnSharedPreferenceChangeListener;

import android.content.pm.PackageManager;

import android.os.Bundle;

import android.preference.Preference;

import android.preference.Preference.OnPreferenceClickListener;

import android.preference.PreferenceActivity;

import android.view.MenuItem;

import org.lineageos.eleven.BuildConfig;

import org.lineageos.eleven.R;

import org.lineageos.eleven.cache.ImageFetcher;

import org.lineageos.eleven.utils.MusicUtils;

        PreferenceUtils.getInstance(this).setOnSharedPreferenceChangeListener(this);

        findPreference(BUILD_VERSION).setSummary(BuildConfig.VERSION_NAME);

        try {

            String versionName = getPackageManager().getPackageInfo(getPackageName(), 0).versionName;

            findPreference(BUILD_VERSION).setSummary(versionName);

        } catch (PackageManager.NameNotFoundException e) {

        }

    }