please help. I have Imageview slider app in android studio. And then I'll tried to add admob by adding code in one of Java classes after sync with Google Services.But it give mistakes
      C:\Users\AVERAIN\AndroidStudioProjects\southkorea\app\src\main\java\com\ave_rain\southkorea\FragmentOne.java
    Error:(24, 28) error: cannot find symbol method findViewById(int)
   Error:Execution failed for task ':app:compileDebugJavaWithJavac'.
   > Compilation failed; see the compiler error output for details.
Code In one of Java class called Fragment
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import com.google.android.gms.ads.AdRequest;
 import com.google.android.gms.ads.AdView;
 public class FragmentOne extends Fragment{
 private AdView mAdView;
 @Override
 public View onCreateView(LayoutInflater inflater,ViewGroup container,
                         Bundle savedInstanceState) {
    mAdView = (AdView) findViewById(R.id.adView);
    AdRequest adRequest = new AdRequest.Builder().build();
    mAdView.loadAd(adRequest);    
    //TODO Auto-generated method stub
    return inflater.inflate(R.layout.fragment_one_layout, container,false);
 }