Android : Android WebCore is giving Warning when launch

i have taken webview in my android app but it takes time in loading.i checked the android logs and found these warning message :

Any Help ?

This is my java code :-

   // webview code here
    WebView wv = (WebView) findViewById(R.id.webView1);
    wv.setBackgroundColor(Color.TRANSPARENT);
    wv.loadUrl("file:///android_asset/aboutus.html");