How to override 'web site not found' message in webview control

Add the following code inside of 'onCreate(Bundle savedInstanceState)' function,

 locationview.setWebViewClient(new WebViewClient()
{
   public void onReceivedError(WebView view, int errorCode, String description, String failingUrl)
  {
locationview.loadUrl("file:///assets/error.html");

  }  });

The above URL will be load if the web page not found in the webview control.