用 uiautomatorviewer 获取安卓手机软件页面时报错：

Error while obtaining UI hierarchy XML file: com.android.ddmlib.SyncException: Remote object doesn't exist! Error while obtaining UI hierarchy XML file: com.android.ddmlib.SyncException: Remote object doesn't exist!

解决方法：

拔出usb数据线，重新连接手机；重新启动即可