Android模拟器默认浏览器无法截屏

Question

My Emulator android手机有android默认浏览器，当appium测试android默认浏览器时，它无法使用TakesScreenshot拍摄失败屏幕截图。我可以解决它。 我使用Selenium Remote Webdriver作为驱动程序实例

    public synchronized static void captureScreenshot(WebDriver driver, String screenshotName) {
    try {
        TakesScreenshot ts = (TakesScreenshot) driver;
        File source = ts.getScreenshotAs(OutputType.FILE);
        FileUtils.copyFile(source, new File("./Screenshots/"
                + screenshotName + ".png"));
        System.out.println("Screenshot taken");
        filePath=timestamp()+ screenshotName + ".png";
    } catch (Exception e) {
        System.out.println("Exception while taking screenshot "
                + e.getMessage());
    }
}

CONSOLE LOGS： 截屏时出现异常处理命令时发生未知的服务器端错误。原始错误：无法代理。代理错误：60秒的新命令超时已过期。尝试使用＆＃39; newCommandTimeout＆＃39;来自定义超时。所需功能（警告：服务器未提供任何堆栈跟踪信息） 命令持续时间或超时：660.36秒 构建信息：版本：＆＃39; 2.44.0＆＃39;，修订版：＆＃39; 76d78cf323ce037c5f92db6c1bba601c2ac43ad8＆＃39;，时间：＆＃39; 2014-10-23 13：11：40＆＃39; 系统信息：主持人：＆＃39; DocASAP-mac-mini.local＆＃39;，ip：＆＃39; 192.168.1.45＆＃39;，os.name：＆＃39; Mac OS X＆＃39;，os .arch：＆＃39; x86_64＆＃39;，os.version：＆＃39; 10.11.5＆＃39;，java.version：＆＃39; 1.7.0_79＆＃39; 会话ID：f8bcc2d5-a00d-43c5-8a8a-157d2fbe6260 驱动程序信息：org.openqa.selenium.remote.RemoteWebDriver 功能[{platform = ANDROID，javascriptEnabled = true，acceptSslCerts = true，browserName = Browser，networkConnectionEnabled = true，desired = {newCommandTimeout = 60，platform = ANDROID，autoAcceptAlerts = true，acceptSslCerts = true，deviceName = 192.168.56.101：5555， platformName = Android，browserName = Browser，setAcceptUntrustedCertificates = true，version = 5.1.0}，locationContextEnabled = false，deviceUDID = 192.168.57.1​​01：5555，version = 5.1.0，newCommandTimeout = 60，platformVersion = 5.1，autoAcceptAlerts = true，databaseEnabled = false，deviceName = 192.168.57.1​​01：5555，platformName = Android，webStorageEnabled = false，setAcceptUntrustedCertificates = true，warnings = {}，takesScreenshot = true}]