Connect UWP C# application to Azure SQL Database MFA? - c#

I have a blank UWP C# application that I would like to connect to an Azure SQL database using MFA.
Targeting version: Win10 version 1903 build 18362
Min version: Win10 Fall Creators Update build 16299
I've attempted to use references like System.Data.SqlClient/Microsoft.IdentityMode.Clients.
But my application does not like the reference. When clicking into it, it tells me the project cannot be viewed in the object browser. I tried reinstalling it different ways with no luck. Also downloaded all the recent Windows 10 SDK versions.
reference error
Whats the best approach to this and if anyone has resources that could help me out.

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Problem with AzureStorageEmulator.exe Azure SDK and Visual Studio related

Premise: I'm a frontend web developer and I had to launch a project written in C# that has many dependencies. I tried to set the enviroment but I had many issues, this is one that neither I, nor the people around me, can resolve (at least we couldn't until now).
When I try to run the solution it always throws an error and open a popup where it writes something like "it is not possible run Azure storage emulator. Run AzureStorageEmulator.exe as administrator and try again". I tried to run the command but it tells me that it is not installed. I unistalled and installed again the Azure SDK, still the error, I installed the storage emulator from here https://learn.microsoft.com/en-us/azure/storage/common/storage-use-emulator#using-sdk but nothing.
What can I do?
I'm using Visual Studio 2019, .net core 2.2 and Azure SDK
Sorry for my funny English, I'm not native.

Totally Blank Unity / Microsoft Store Build fails WACK tests

I have been trying to get a successful build for my game in Unity 2018.2.1f1 and Visual Studio 2017 15.8.0.
After trying unsuccessfully to get a successful build / package / WACK for the windows store with all/every different configuration, I tried a totally blank default Unity, UWP platform app, generated a visual studio project. generated some icons, associated it with an app I had in the store. Built it, packaged it and run the WACK tests.
FAILED
Supported APIs
Error Found: The supported APIs test detected the following errors:
API ExecuteAssembly in uwphost.dll is not supported for this application type. WinTest2.exe calls this API.
API DllGetActivationFactory in uwphost.dll is not supported for this application type. WinTest2.exe has an export that forwards to this API.
Impact if not fixed: Using an API that is not part of the Windows SDK for Microsoft Store apps violates the Microsoft Store certification requirements.
How to fix: Review the error messages to identify the API that is not part of the Windows SDK for Microsoft Store apps. Please note, apps that are built in a debug configuration or without .NET Native enabled (where applicable) can fail this test as these environments may pull in unsupported APIs. Retest your app in a release configuration, and with .NET Native enabled if applicable. See the link below for more information:
What do I have to do to make a successful app build that I can actually get into the store. (What configuration, what unity / visual studio versions.) I have tried later versions of unity 2018.2.1 and 2018.2.2 (i think) and could not get a successful build out of them.
A while ago, i could not get a successful build out of Unity, so I reinstalled Win 10 Pro, Unity and Visual Studio. Still problems persist.
Thanks to StormBringerStudios I received an answer that works.
"Just Got Visual Studio 2017 15.7.6 version. works like a charm.
So here is my Solution is anyone will search this kind of problem DONT USE VS 2017 15.8.X.
Downgrade to 15.7.6 and you will be good :)
Microsoft certification also passed."

Docker image for TFS Xamarin Android build agent?

We are building Xamarin.Android projects on TFS (on-premise).
With every Visual Studio / Android SDK update we have to update all our build agents.
Is there a way to simplify this process?
There are some vsts-agent images available, but none of them are for xamarin. There are some xamarin-related images, but they are a bit out of date (and not related to TFS).
Is there anything I'm missing? Any other solutions to the problem?
Currently, there are no Docker images support for xamarin or windows. Even for the existing Docker images, there are not for all TFS versions. As you can see from vsts-agent images:
Ubuntu 14.04 and 16.04 are the currently supported OSes, but there are
plans for Windows support.
When used with VSTS, the agent version is automatically determined and
downloaded at container startup based on the account to which the
agent is connecting. When used with TFS, an image that matches the
installed TFS version should be chosen.
There are no better way to do that. So, you have to update the build agents manually once there are any SDK updates.
You can also submit a User Voice to suggest the feature on this site: https://visualstudio.uservoice.com/forums/330519-team-services
Actually a similar user voice submitted here,
Another workaround is migrating to VSTS (Visual Studio Team Services ) and using the hosts agent (Generally the hosts anget will be updated accordingly once new SDK/components updated, See this user voice).

Xamarin Deployed Faild Object Reference Not Set To An Instance

I've been trying to setup mobile development on VS2015 for several days. The issue is
I created blank app
Started Emulator From Xamarin Android Player
Started Debugging
I got my solution built succeed but deploy failed. Here is image
I checked the error list but as we can see it is nothing there.
Well, I searched on internet with different queries and came to know that this problem is quite common but no permanent solution is provided. Some of the solutions suggested on other sites including Xamarin Official Forums are as follows:
Restart debugger.
Install valid Java Sdk Manager.
Restart Visual Studio.
Install android packages for targeted platform.
Create virtual device.
Change settings in Hyper-V manager.
Set your project as Startup Project.
Uninstall android components and reinstall them.
Disable Fast Deployment Option in Project Properties.
I tried everything but issue stands still. The packages I have installed for SDK are in image as follows
I don't know what part of package installation I am missing or there is some problem with VS2015. I have been trying to resolve this deployment issue but in vain.
Note*: I am using HP EliteBook 8460p with Win 10 64-bit installed on it.

Using TeamCity to build C# 6 application on outdated Windows Server 2008 (NOT R2)

We are using that version on Amazon. I'm not sure if there is any good solution to upgrade Windows without reinstalling everything.
Looks like it's not possible to install Microsoft Build Tools 2015 on that Windows version. Can it be "hacked"? This is not a production server so I don't care if it would be not fully secure.
Another workaround I think could be using mono. I installed the latest mono version but build agent doesn't detect it. How to fix it? Will it work if I'm going to run that mono-compiled app on MS .NET? Can mono compiler handle mixed-mode assembly references (we don't need to compile them, just use)?
Or can you suggest anything another?

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