android developer, get error with webView1 = (WebView) findViewById(R.id.webView1);

Question

see arrow below my "webView1" : cannot be resolved or is not a field" how to fix it

public class MainActivitylp extends Activity {

private WebView webView1;


@SuppressLint("SetJavaScriptEnabled")
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main_activitylp);


    webView1 = (WebView) findViewById(R.id.webView1); -->webView1 cannot be resolved or is not a field

    webView1.getSettings().setJavaScriptEnabled(true);
    webView1.loadUrl("http://lukispelan.com");

}

}