Could not install the app on the device, read the error above for details.Make sure you have an Android emulator running or a device connected and haveset up your Android development environment:https://facebook.github.io/react-native/docs/android-setup.html我已經(jīng)按照好genymotion emulator 并且啟動了一個模擬，此外，android studio ，virtual box 也安裝好了，估計是有什么沒有配置好？