问Windows Phone 8语音识别异常

EN

SpeechRecognizerUI recoWithUI= new SpeechRecognizerUI();
try
{
    this.recoWithUI = new SpeechRecognizerUI();

    // Start recognition (load the dictation grammar by default).
    SpeechRecognitionUIResult recoResult = await recoWithUI.RecognizeWithUIAsync();

    // Do something with the recognition result.
    MessageBox.Show(string.Format("You said {0}.", recoResult.RecognitionResult.Text));

}
catch (Exception)
{

    throw;
}

private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
{
    if (Debugger.IsAttached)
    {
        // An unhandled exception has occurred; break into the debugger
        Debugger.Break(); // It focuses on this line.
    }
}