ASP.NET Core 2.0 ngrok 502 Bad Gateway Error

I have been using ngrok with ASP.NET 4.X without encountering any problems. Unfortunately, when I try to forward app build in ASP.NET Core 2 I run into a problem that I can't solve. I tried following ...

Making ServiceStack RedisSentinel use a RedisManagerPool instead of a PooledRedisClientManager

Using ServiceStack version 4.0.40. I am trying get RedisSentinel to use the RedisManagerPool instead of the PooledRedisClientManager so it will allow clients above the client pool size. I see this...

6 Mar at 14:25

ASP.NET Core include timestamp in all log entries

I have a ASP.NET Core 2.0 application with built-in console logging enabled. Here is the WebHost creation: ``` var webHost = WebHost.CreateDefaultBuilder(args) .UseUrls("http://localhost:...

Removing Conda environment

I want to remove a certain environment created with conda. How can I achieve that? Let's say I have an active `testenv` environment. I tried, by following documentation, with: ``` $ conda env remove ...

24 Feb at 18:42

How to upload images and file to a server in Flutter?

I use a web service for image processing , it works well in Postman: [](https://i.stack.imgur.com/UAHqI.png) Now I want to make http request in flutter with Dart: ``` import 'package:http/htt...

19 Jun at 06:18

Uwp app crash immediately after compiled with .net native toolchain

I'm creating an uwp app. My app works well in debug mode. But when compiled with .net native toolchain, which is essential to publish app to the Store, it crash immediately. I was trying to enable all...

31 May at 15:15

Simple way to keep Front-end Angular 5 and back-end Web API code separate?

I have developed an Angular 5 app with plenty of moving parts (Services, Bootstrap, Angular Material, internal+external JS scripts, etc). Now I want to add database connectivity to this app as well (M...

'DbContextOptionsBuilder' does not contain a definition for UseNpgsql()

I am facing an issue while giving the connectionstring to get it connect to PostgreSQL through the `AddDbContext()` method in ConfigureServices method of Startup.cs I'm getting this error while calli...

Creating an IReadOnlyList<string>

How do I create an `IReadOnlyList<string>` with some values in it? I found an example of `ReadOnlyCollection` which seems to convert an existing collection to an `ReadOnlyCollection` but that approac...

5 Mar at 16:28

Combining Flutter frontend with .NET Core backend for Android and iOS

Currently working for a company that use .NET (not Core) but want to switch to .NET Core and thought to do so by creating an app with a Flutter.io frontend and .NET Core backend. The app w/ backend is...

5 Mar at 15:45

Container runtime network not ready: cni config uninitialized

I'm installing kubernetes(kubeadm) on centos VM running inside `Virtualbox`, so with yum I installed `kubeadm, kubelet` and `docker`. Now while trying to setup cluster with `kubeadm init --pod-netwo...

20 Feb at 06:10

Error : Program type already present: android.support.design.widget.CoordinatorLayout$Behavior

I am getting the following error while building the project. haven't used CoordinatorLayout in this project. just added as a dependency in build.gradle : I am using Android Studio 3.2 Canary 4. >...

Where does the ASP.NET Core logging API as default store logs?

In the ASP.NET Core 2.0, I use the [default logging API](https://learn.microsoft.com/en-us/aspnet/core/fundamentals/logging/?tabs=aspnetcore2x). My app is hosted as an Azure Web App. (I don't need ...

In C# Convert List<dynamic> to List<string>

Suppose I have a `List<dynamic>` object containing strings: ``` var dlist = new List<dynamic>() { "test", "test2", "test3" }; ``` Is there any efficient way of converting this into a pr...

2 Feb at 15:49

Subscribe user to a SSE channel in ServiceStack

I'm trying to figure out how can I subscribe a just-authenticated user to a SSE channel using the ServiceStack's `OnAuthenticated` function. Here is my actual code: ``` public override void OnAuthent...

5 Mar at 10:27

Increase Servicestack Concurrent Process

I have following Service: ``` public class ServerApp : AppHostHttpListenerPoolBase { public ServerApp() : base("Server", 500, typeof(TestService).Assembly) { } ...

5 Mar at 09:2

Could not load file or assembly 'Newtonsoft.Json' Version=11.0.0.0

I have read a lot of the responses to previous versions of this issue but none seem to work. Every time I open my script component in Visual Studio 2015 (v14.0.25431.01 update 3) it tells me I am mis...

ChromeDriver showing Lost UI Shared Context

I have a Windows 10 laptop running a Windows 7 Virtual Machine. Inside the Virtual Machine, when i start the WebDriver, it gives the error when it is started: ``` IWebDriver driver = new ChromeDrive...

how to add a new c# file to a project using dotnet-cli

I'm learning how to use dotnet-cli with VSCode. I've seen many commands on how to create solution, projects, add reference to projects... but I don't see anywhere in the documentation how to add a fil...

3 Mar at 18:3

.NET Analyzer: Package Version vs Assembly Version

As you can see in the following picture when you create a project of type Analyzer with Code Fix (.NET Standard) using VS 2017, in the properties tab of the project there is package version, assembly ...

3 Mar at 12:20

Fill DataTable asynchronously?

I have the following function in a .NET Core 2.0 app. ``` public DataTable CallDb(string connStr, string sql) { var dt = new DataTable(); var da = new SqlDataAdapter(sql, connStr); da.Fil...

2 Mar at 23:5

How to make Swagger show examples of objects returned from the API?

I am creating a set of API's for the first time. Here's one of the methods: ``` // GET: api/Doors/0 /// <summary> /// Get a list of all doors for a given organization. /// </summary> ...

2 Mar at 20:12

Handling dates and datetimes in ServiceStack's Ormlite

I am using `Ormlite.Oracle` to do something like this: ``` using (var db = dbFactory.Open()) { var events = db.From<Event>() .Where(row => row.Event_...

2 Mar at 19:10

How to return JSON in an ApiController for a single method?

Currently, my `ApiController`s are returning XML as a response, but for a single method, I want to return JSON. i.e. I can't make a global change to force responses as JSON. ``` public class CarContr...

No constructor found for Xamarin.Forms.Platform.Android.LabelRenderer (xamarin forms)

I have a list of image in my xaml on pcl project when I test my app in my samsumg galaxy s5 device I do this: I enter in the page of the list, then I press the back button on the action bar...I do it ...