UI Automator viewer ：Error obtaining UI hierarchy Reason： requires a device with API Level 16

打開UI Automator viewer的Device Screenshot 時，遇到報錯Error obtaining UI hierarchy Reason：UI Automator requires a device with API Level 16，報錯如圖： 解決辦法，打開SDK Manager，下載更高版本API,新建一個Android virtual device，上面的報錯就沒

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