Request against localhost relative url "Cannot assign requested address"

I have a visual studio 2017 [ / 2019 ] asp.net core web app project enabled with docker support using `FROM microsoft/dotnet:2.1-aspnetcore-runtime AS base` and `FROM microsoft/dotnet:2.1-sdk AS build...

Azure Function - System.Data.SqlClient is not supported on this platform

I'm running the following `insert` code within my azure function into an azure sql server 2014 database: ``` private static void Command(SqlConnection sqlConnection, string query) { var s...

28 Dec at 01:52

Can't perform a React state update on an unmounted component

## Problem I am writing an application in React and was unable to avoid a super common pitfall, which is calling `setState(...)` after `componentWillUnmount(...)`. I looked very carefully at my c...

componentDidMount equivalent on a React function/Hooks component?

Are there ways to simulate `componentDidMount` in React functional components via hooks?

12 Dec at 10:55

Not able to use GetValueOrDefault() for Dictionary in C#

I've defined a Dictionary with some custom type like this, Now when i try to do section is of type `PricingSection` i'm getting an error saying > Severity Code Description Project File Line Suppressio...

Pylint "unresolved import" error in Visual Studio Code

I am using the following setup - [macOS v10.14](https://en.wikipedia.org/wiki/MacOS_Mojave)- - - - I want to use linting to make my life a bit easier in Visual Studio Code. However, for every import ...

Utilizing bluetooth LE on Raspberry Pi using .Net Core

I'd like to build a GATT client in .NET Core. It will deploy to a RPi3 running Raspbian Lite controlling multiple BLE devices. Is there currently support for Bluetooth LE in the .Net Core Framework (2...

Android studio 3.2.1 ArtifactResolveException: Could not resolve all artifacts for configuration ':classpath'

After I update Android Studio to 3.2.1 and gradle version in my project I am getting following build error. I have already checked lots of questions related this question but no luck. ``` buildscr...

(-215:Assertion failed) !_src.empty() in function 'cv::cvtColor' with cv::imread

I am trying to recognize text from an image to then have the text outputted; however, this error spits out: > Traceback (most recent call last): File "C:/Users/Benji's Beast/AppData/Local/Pro...

No constructor for type SwaggerGenerator can be instantiated using services from the service container and default values

I'm trying to add Swagger to my project. The error received is as follows. > No constructor for type 'Swashbuckle.AspNetCore.SwaggerGen.SwaggerGenerator' can be instantiated using services from the s...

25 Dec at 22:30

GraphicsPath AddString not support enough to the font when use right to left language if operating system lower than Win10

I need to `generate an image from a string` in my WPF application, and show it. Here is my code: ``` // Create Image and generate string on it System.Windows.Controls.Image img = new System.Windows.C...

24 Apr at 21:23

SymbolInfo of extension method

I need to analyze some extension method. For example `Enumerable.ToList`. Code sample to analyze: ``` var test = @" using System.Linq; namespace Test { public class TestType { void ...

24 Dec at 21:4

SetActive() can only be called from the main thread

I am stuck with this problem for 3 days, I did a lot of research, but couldn't find any answer, Here is a brief explanation of what is happening, trying to work with Firebase Database and Authenticati...

9 Apr at 10:4

Change return type of a function in WCF without changing interface return type

I'm working on an old WCF service with many interfaces and services for a new system. I want to change return type of functions without changing all service interfaces and implementations as follow: ...

24 Dec at 16:52

How to store session data in server-side blazor

In a server-side Blazor app I'd like to store some state that is retained between page navigation. How can I do it? Regular ASP.NET Core session state does not seem to be available as most likely the...

Flutter: How to change the width of an AlertDialog?

I wonder how to change the default width of an AlertDialog, I only succeeded to change the border radius : Here is my code : ``` showDialog( context: context, builder: (_) => ...

10 Jan at 21:8

Servicestack service not loading

I am lost... What am i missing. I copied a working service and renamed it. the service will not load in service stack. cant access via api and not showing in metadata page... Code follows ``` using ...

23 Dec at 20:36

AppSelfHostBase not resolving

I have service stack in a .netcore xUnit test. I cannot resolve AppSelfHostBase. I downloaded the latest repo of servicestack and its there in the Servicestack namespace. But I cannot resolve it in my...

23 Dec at 02:10

Executing async code on update of state with react-hooks

I have something like: ``` const [loading, setLoading] = useState(false); ... setLoading(true); doSomething(); // <--- when here, loading is still false. ``` Setting state is still async, so wha...

Get HTML Code from a website after it completed loading

I am trying to get the HTML Code from a specific website async with the following code: ``` var response = await httpClient.GetStringAsync("url"); ``` But the problem is that the website usually ta...

22 Dec at 19:10

Add a generic handler for Send and Publish methods of the MediatR library in asp .net core

I use the CQS pattern in my asp.net core project. Let's start with an example to better explain what I want to achieve. I created a command: ``` public class EmptyCommand : INotification{} ``` The ...

24 Dec at 15:55

Calling Action in Razor Pages

as a newbie to Razor Pages I have a question regarding calling methods from Razor Page. - The method `SubtractProduct()` is defined in my domain model. - The Index Page has `IActionResult sell...

ServiceStack.Text model.ToCsv() not wrapping output properties in quotes

Using [ServiceStack.Text](https://github.com/ServiceStack/ServiceStack.Text) to output CSV files from a C# console application. It generates the output for all of the public properties on the model. T...

22 Dec at 05:44

Could not load file or assembly 'System.Runtime.CompilerServices.Unsafe'

Trying to use SQLTypeProvider with postgres I get the following errorwhen running dotnet build > error FS3033: The type provider 'FSharp.Data.Sql.SqlTypeProvider' > reported an error: Could not load...

7 May at 05:45

adb devices => no permissions (user in plugdev group; are your udev rules wrong?)

I am getting following error log if I connect my android phone with Android Oreo OS to Linux PC ``` $ adb devices List of devices attached xxxxxxxx no permissions (user in plugdev group; are your ...

21 Nov at 06:24