Microsoft, on their web site has the following to say about Visual Studio Community 2015.
A free, fully-featured, and extensible IDE for creating modern applications for Windows, Android, and iOS, as well as web applications and cloud services.
Visual Studio Community is free for individual developers, open source projects, academic research, education, and small professional teams.
Now with Xamarin. Deliver great mobile apps. Visual Studio Community now integrates Xamarin features that complete the out-of-the-box mobile application development experience for Android, iOS and Windows. Share code across devices while delivering apps with native performance and look & feel.
You can download and install Visual Studio Community 2015 on the C: drive provided that you have enough disk space. If you want to develop apps for phones, you will need about 24GB of free space on your C: drive. Also, you should download the emulator. There is Visual Studio Emulator for Android web page that gives you the button to download it.
Introductory Instructional Videos
When you first create a blank Android project, you get a “Start” page that has a few links. There are two links to videos on YouTube. There is a short video on the emulator. There is also a 10-minute video on how to do a simple “Hello World” app.
In order to install the emulator you need to meet the system requirements, one of which is the ability to run Microsoft’s Hyper-V. If you are running Windows 10, you need the Professional version of Widows 10.
If you don’t meet the requirements and you have an Android device you can use you device directly by plugging it in to your computer. What you need to do is put your Android device into developer mode.
Android Developer Mode
How do you put your device into developer mode? It’s easy, you just need to know where to look. First, go to your Settings. You need to find the About Device section, which might be under the General section. Once you are in the About section, look for the Build Number. Tap on it seven times. You have now enabled Developer mode. You can now see a new section under the General section called “Developer options”.
Once you are in developer mode in your Android phone or Android tablet you can plug it in to the computer using the USB wire. Windows will automatically detect it and Visual Studio will automatically update the debug menu. If it doesn’t automatically update the debug menu in VS, go to the phone and tap the check box beside USB debugging under the Debugging section of Developer options. Try running the app in VS. It could take several seconds or minutes to build the application. Be patient. It worked for me. The phone will automatically display you app on the screen. Test it by clicking the button. Now, stop debugging in VS by clicking the red square in the menu. The app will disappear from your phone.
First update your Xamarin for Visual studio (Stable)
Go to tools then options…
Scroll down and look for Xamarin..
Change Alpha to Stable..
Then click on Check Now and download Xamarin
After download, follow the step to install xamarin for visual studio.
Now that is done.. Go on and update the Android SDK..
Go on Tools> android> Android SDK manager
From there update the Android SDK tools revise 24.3
To finish. Restart visual Studio. This should Solve the problem.