如题：
appium之前编写的Java脚本，运行在设备A是OK的，但换到B设备中运行提示报错：
org.openqa.selenium.SessionNotCreatedException: A new session could not be created. (Original error: Device ZX1C622BU3 was not in the list of connected devices) (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 745 milliseconds
Build info: version: '2.44.0', revision: '76d78cf', time: '2014-10-23 20:03:00'
System info: host: 'admin-PC', ip: '19.244.54.228', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.6.0_39'
Driver info: io.appium.java_client.AppiumDriver

查看adb device，设备B是可以正常查看的，但为什么提示设备找不到呢？求解，谢谢

appium中启动部分代码：

public class CommonUtil {

    public static AppiumDriver commonInit() throws MalformedURLException {
        AppiumDriver driver;
        // 使用phonegap打包的hybrid app路径
        String apppath = "F:\\mlm.apk";
        // setup AppniumDriver
        DesiredCapabilities capabilities = new DesiredCapabilities();
        capabilities.setCapability("deviceName", "emulator-5554");// 真机测试android设备
        capabilities.setCapability("platformVersion", "4.4.2");// 真机android版本为4.2.2
        capabilities.setCapability("platformName", "Android");// 真机为android系统
        capabilities.setCapability("app", apppath);// 被测app apk包的位置
        capabilities.setCapability("appPackage","xx");// 被测app的Activity类所在包
        capabilities.setCapability("appActivity", ".xx");// 被测app的Activity类
        capabilities.setCapability("automationName", "selendroid");// 因为真机为4.2版本，所以使用selendroid
        // http://127.0.0.1:4723/wd/hub地址就是AppiumServer的地址
        capabilities.setCapability("app-wait-activity", "activity-to-wait-for");
        driver = new AppiumDriver(new URL("http://127.0.0.1:4723/wd/hub"),capabilities);
        Set<String> contextNames = driver.getContextHandles();
        for (final String contextName : contextNames)
            System.out.println("App type:" + contextName);
        try {
            Thread.sleep(5000);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return driver;
    }