appium uiautomatorviewer.bat 工具报错：Unexpected error while obtaining UI hierarchy

Unexpected error while obtaining UI hierarchy F：盘下面创建app.png  app.uix两个文件 cmd命令依次执行： C:\Users\dell>adb shell uiautomator dump /sdcard/app.uix UI hierchary dumped to: /sdcard/app.uix   C:\Users\dell>ad

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