Android WebView E / SelfBrailleClient（）：无法绑定到服务

Question

webview = (WebView)findViewById(R.id.web_main);
    webview.getSettings().setJavaScriptEnabled(true);
    WebSettings set = webview.getSettings();


    set.setJavaScriptEnabled(true); 

但是logcat显示E / SelfBrailleClient