Develop Reference

Xamarin android emulator causes windows 10 blue screen ( clock watchdog timeout error )

First of all ı am new on xamarin visual studio 2019 .So ı set up xamarin and whenever ı run Android emulator , emulator work but after few seconds windows 10 has crashed and it restart itself. Also I opened hyper v features but still doesn't work
Can you help my problem ?

ı did a lot of search for my this problem and I had a find soultion something. That is a windows update error. When my windows features series 1809 , ı had take this error. But when ı update to windows series 2004 I didn't take blue screen error. So maybe İf you are getting this error , can try update your system

Can't run my app on android studio

I have downloaded android studio and now i am trying to run an app.I haven't changed anything in code or design.I am using version 2.2.2
When i click on run it gives me an error
init: Could not find wglGetExtensionsStringARB!
But emulator opens.Then there is blank black screen for 2-3 minutes,then androidtitle for another 5 minutes.This is what i get.
But i don't know where is my app?

What you're running is Android version 7.1 (Nougat MR1). You can see the list of apps (app drawer) by clicking on the small ^ (caret) icon above the opaque area highlited as a red circle in the picture below

emulator opens.Then there is blank black screen for 2-3 minutes,then androidtitle for another 5 minutes.
This is normal. You should wait until the emulator fully boots and run your app again. If your development computer has an Intel processor, be sure to install HAXM. It will greatly increase the speed of the emulator.

Xamarin Android emulator screen gets split into 4 identical rectangles when deploying

I've just gotten into developing apps for smartphones (I'm fairly adept with objective programming already and have some experience with Visual Studio) and decided to try out Xamarin. I've installed Xamarin Studio and Visual Studio 2015 Community with Xamarin without any problems. However, when I actually try to deploy the app (using the Xamarin Android API 15 emulator), a weird bug happens: the screen of the emulator gets split into 4 identical rectangles as you can see in this screenshot. The screen controls still work like they should and are in the default positions (the buttons are not on each of the 4 rectangles and in the normal position for a phone). I can unlock the emulator and launch apps like I would be able to on a correctly working emulator. I have all the prerequisites for Android API 15 installed. The app behaves similarly when I deploy it on the Xamarin Android API 21 emulator (all the prerequisites are installed). I am trying to deploy the blank Visual Studio 2015 Xamarin.Android app without any code changes.
Have you guys ever seen such a bug (or maybe a feature :) ) and do you know how to solve it?

Found the solution if anyone has the same problem: editing the emulator in the AVD to Use Host GPU fixes the issue.

Android Studio Emulator does not show app

I've been programming in android studio for a little while now and recently it's been very messed up. It all started when I changed the theme for my app. The emulator stopped working and I tried uninstalling and reinstalling. Nothing worked and I ended up factory resetting my laptop. I reinstalled android studio and still have the same problem. I've reinstalled HAXM and I've also tried testing on my phone. I run the program and the emulator shows up and it shows the title bar with the name of my app, but no content, just a white screen.
Here is a link to the pastebin of the log.
Here is what the app looks like in the design view.
Just take out the picture of the duck and that's what it looks like in the emulator
This used to work perfectly before I changed the theme, but I reset my computer so i'm totally lost. I'm running on an HP Pavillion 15 laptop with a core i5 and 8 gigs ram with integrated graphics.
Any help is very much appreciated!
Thank you for your time
-Kelton

Android AVD screen appears blank

I have started learning android myself, I have setup the enivronment I am following this link, I have successfully created Hello World app,but when I am running it,the AVD is appearing with black screen with just android word on it.
I have followed each step mentioned in the link,but no luck there is no error in console too, I saw solution in this link and I have waited so too long but its still showing just android word and not Hello world.
Also Please suggest some good book/tutorial for android

Restart your AVD, it takes some time in the beginning. You need to have patience and wait till the home page comes in the emulator. If this doesn't work try to use another Android AVD as mentioned in the above ans.
Also you should prefer Android Studio over eclipse.

Android is the intro of the emulator for some reason your emulator cannot starts,restart your emulator or create a new one. I recommend you use GenyMotion for Android emulator . Some good tutorials for android:
http://developer.android.com/index.html , http://www.androidhive.info/ , http://www.vogella.com/