Xamarin.Forms Android app wont open in vs 2017 - xamarin.forms

After creating an Xamarin.forms app, the android app wont open
It just hangs on this status and after a while becomes ready, but the app does not open in emulator

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Xamarin forms fonts are missing using testflight

I used to distribute an iOS Xamarin Form Application on testflight.
I had to update my Windows Visual Studio to v16.11.6
Since this new version, the app il not working fine on iOS: all custom fonts are not loaded when the app is opened from testflight
But the problem is not there when using the simulator or deploying the app from visual studio on my iPhone
Could you help me

Xamarin.Forms - How to check if my app uses the Advertising Identifier (IDFA)?

I'm using Xamarin.Forms. For the iOS app, how to check whether it uses IDFA? I'm about to submit the app for Apple Review in App Store Connect.
For native iOS project (xCode), there were some commands to run like grep in the root path. But how to check this in Xamarin project (Visual Studio for Windows with paired Mac)?

Vs2017, Xamarin app, in emulator, want webcam to be emulators camers, Android at the moment but will need IOS and UWP as well

Vs2017, Xamarin app, in emulator, I want webcam to be emulators camers, Android at the moment but will need IOS and UWP as well.
I've set the camera permissions in the apps, the emulated camera works fine.
I added the property hw.camera = true
and hw.camera.front and hw.camera.back are both set to webcam0
my webcam is added and works
How do I get the emulator (in this case android) to see my webcam as the camera?
I can find "answers" for Android studio, and Xamarin studio, but am unable to figure out how to apply them to visual studio 2017.

Xamarin.Android Preview Problem in VS for Mac

When I targeted Android 9.0 (Pie) in Android part of Xamarin.Forms app the Preview of UI produces an error and show nothing.
Open a new Xamarin.Forms App in VS For Mac then update all of the Android Packages. After that, target your app to Android 9.0 as I described above. Finally you should run one time your app in an Android Emulator and you will see the error in Preview Tool in VS for Mac. The problem isn't in app. App is running well but I can't see preview of the UI to change things immediately.
(Error: android/view/View.OnUnhandledKeyEventListener)

How to run a mvvmcross Xamarin.Form app on an emulator

I am trying emulators to run the app TipCalc and I don't get it. I am working with Visual Studio 2017. Which emulator can I use to run an application Xamarin.Forms and it uses mvvmcross?
I want to build an app for iOS and Android.
For Android:
First, you need Accelerating Android emulators on Windows. Please choose Hyper-V or HAXM to acclerate your Android emulator.
Then, you could launch Android emulator form VS Tools --> Android --> Android Device Manager.
For iOS:
You must have a Mac to do Xamarin.iOS development. The Mac is required for building as well as running the iOS simulator.
If you already has a Mac, you just need Pair to Mac for Xamarin.iOS Development and build your Xamarin.iOS project.

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