Getting an Unauthorized error(401) from vuforia server

I am trying to implement in C# code. I am getting an error from the server. C# Code: ``` ASCIIEncoding Encoding = new ASCIIEncoding(); MD5 md5 = MD5.Create(); string requestPath = "/targets"; str...

Package 'EntityFramework 6.2.0' was restored using '.NETFramework,Version=v4.6.1' instead of the project target framework '.NETCoreApp,Version=v2.0'

I have made .net core 2.0 web app. I have added Entity Framework 6.2.0 using NUGET and then I get this error > Package 'EntityFramework 6.2.0' was restored using '.NETFramework,Version=v4.6.1' instea...

11 Jan at 06:35

MSB6003 The specified task executable "sgen.exe" could not be run. The filename or extension is too long

Running VS 2017 15.5.3 on windows 10. Getting this generic error "The specified task executable "sgen.exe" could not be run. The filename or extension is too long" When building project in Release co...

11 Jan at 03:56

C# Verbatim String Line Breaks: CRLF, CR, or LF?

I ran into an interesting problem today where my tests were failing consistently on the build machine when they worked just fine on my machine even using the same configuration. When I looked at the ...

10 Jan at 22:2

Why isn't Serilog writing Debug messages even when the level is set to Debug?

I wrote the following line to create my logger in a C#/WPF application, but the Debug messages do not show up in the logs. What am I missing? I am using serilog.sinks.file version 4.0.0. The releas...

10 Jan at 21:59

Generate and Sign Certificate Request using pure .net Framework

I am trying to use pure .net code to create a certificate request and create a certificate from the certificate request against an existing CA certificate I have available (either in the Windows Certi...

23 Dec at 19:27

How to filter NUnit tests by category using "dotnet test"

I have a project that has a ``` [TestFixture, Category("Oracle")] ``` and a ``` [TestFixture, Category("OracleOdbc")] ``` with a couple of tests which I would like to execute using `dotnet test...

23 Jan at 16:2

Systemd with multiple execStart

Is it possible to create service with the same script started with different input parameters? Example: ``` [Unit] Description=script description [Service] Type=simple ExecStart=/script.py parameters...

25 Feb at 09:19

How to get actual request execution time

Given the following middleware: ``` public class RequestDurationMiddleware { private readonly RequestDelegate _next; private readonly ILogger<RequestDurationMiddleware> _logger; public R...

How to get default value of auto property in C# using reflection?

I have this class: How do I get the "Auto-Property Initializer" value `5` using reflection? I am trying to avoid creating an instance of MyClass. It seems un-necessary.

6 May at 06:11

Mocking a SignInManager

New to unit testing with Moq and xUnit. I am trying to mock a `SignInManager` that is used in a controller constructor to build a unit test. The documentation that I can find for the `SignInManager` c...

Why is StringValues used for Request.Query values?

Let's say I have some url that looks like this: www.myhost.com/mypage?color=blue In Asp.Net Core, I'd expect to get the color query parameter value by doing the following: `string color = Request.Qu...

3 Oct at 12:52

How to use LINQ Where for generic type?

I have the following generic method that I need to be able to perform a LINQ Where query in: ``` public static List<T> GetItems<T>(Guid parentId = new Guid()) where T : new() { var db = new SQLit...

10 Jan at 13:35

How to iterate using ngFor loop Map containing key as string and values as map iteration

I am new to angular 5 and trying to iterate the map containing another map in typescript. How to iterate below this kind of map in angular below is code for component: ``` import { Component, OnIni...

When it can be usefull to use the `IWebHost.Start()` method?

ASP.NET Core 2 MVC. `Microsift.AspNet.Hosting.IWebHost` interface [contains](https://learn.microsoft.com/en-us/dotnet/api/microsoft.aspnetcore.hosting.iwebhost.start?view=aspnetcore-2.0) the `Start()...

AspNetCore.SignalR 2.1 and CORS

I'm migrating our SignalR-Service to the new AspNetCore.SignalR (2.1 preview) and now I get problems with CORS. I will never access the service from the same origin, so I need to disable CORS in gener...

When to use TryAddSingleton or AddSingleton?

I've noticed in some .NET Core examples there are calls to `TryAddSingleton`, and in some `AddSingleton` when registering services. Decompiler shows that TryAdd (called by TryAddSingleton) adds the s...

how to format date in Component of angular 5

I am new to angular and looking to format date in component ngOnInit method. I have seen some example where pipe operator are used to format the data but i dont know how to format date in component fi...

10 Jan at 09:2

Covariance and Contravariance with Func in generics

I need more information about variance in generics and delegates. The following code snippet does not compile: > Error CS1961 Invalid variance: The type parameter 'TIn' must be covariantly valid ...

10 Jan at 01:24

Conda: Creating a virtual environment

I'm trying to create a virtual environment. I've followed steps from both [Conda](https://conda.io/docs/user-guide/tasks/manage-environments.html#) and [Medium](https://medium.com/@tk2bit/how-to-set-u...

23 Apr at 10:57

Validation nullreferenceexception trying to implement new custom syntax

Attempting to rewrite my custom rules to suggested new 7.2 FluentValidation syntax and am getting the following error: NullReferenceException at ServiceStack.FluentValidation.Internal.PropertyRule, ...

9 Jan at 18:41

Oracle.ManagedDataAccess OracleInternal.NotificationServices.ONSException

We use the 'Oracle.ManagedDataAccess' ODP.NET driver for database access to Oracle. When connecting to the database with the connection string: ``` Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=...

23 Sep at 04:4

Add JObject to JObject

I have a json structure like this: ``` var json = { "report": {}, "expense": {}, "invoices": {}, "projects": {}, "clients": {}, "settings": { "users": {}, "companies": {}, "te...

16 Jun at 09:1

can't override appsettings.json settings with environment variables

I can't override the settings of my `appsettings.json` file with environment variables. `appsettings.json`: ``` { "AppSettings": { "LocalUpdatesDir": "<some path>", "BinaryDeltaCount": 5, ...

9 Jan at 15:53

PHP 7.2 Function create_function() is deprecated

I have used `create_function()` in my application below. ``` $callbacks[$delimiter] = create_function('$matches', "return '$delimiter' . strtolower(\$matches[1]);"); ``` But for PHP 7.2.0, `create_fu...

6 Jul at 02:16