Prerequisites(2)

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Prerequisites
After once you have installed the Visual Studio, there are few things to be taken care of
For android
Usually along with Visual Studio Android SDK will also be installed that includes the latest Android platform(emulator) and SDK tools.

If you want to test them on devices with old android OS you have to  install respective build tools versions and Android SDK platform versions.
If you want to test them on emulators with old android OS you have to  install respective build tools versions, Android SDK platform versions and their respective Android System Images.
See the following images for reference:
From the above images:
It is clear that we can test our app in physical devices with Android OS versions 27, 26, 25, …….
But if I want to test the app in Android Emulator, then it is possible only with version 26. If we want to test in other versions the we have to install system images of the respective OS versions.
Rest of the settings will be discussed in the upcoming tutorials.

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