C# - VS Code - launch:program ... does not exist

I am trying to debug a simple "Hello world" application in VS Code, however, when I press Ctrl + F5, it gives me the following error: [](https://i.stack.imgur.com/8d4eo.jpg) If I manually change the...

9 Jan at 16:56

How to reload current page?

I have a page for editing user, it has some children components inside. Each children components can change or doing some effect to its parent component. So instead of emitting the changes to parent...

21 Jan at 11:7

Cannot find module 'rxjs-compat/Observable'

I am currently upgrading angular 4 to angular 6 code. I have installed "rxjs": "^6.3.2" and un-installed rxjs-compact as I have migrated the code to use the new rxjs operators. I am still getting the ...

18 Sep at 14:31

Command CompileSwift failed with a nonzero exit code in Xcode 10

After updating to the latest version of Xcode at the moment (version 10.0) the project is unable to build because it found some errors regarding some "Command CompileSwift failed with a nonzero exit c...

17 Jun at 08:54

Add data using migration Entity Framework Core without specifying the id

I would like to use EF migrations to add some data inside my DB. The fact is that all Id are auto-generated. I found the standard way to achieve it with EF Core, which is the following ``` modelBuild...

18 Sep at 11:27

How to deal with ValueTask<T> in F#?

So apparently .NET's brand new `ValueTask<T>` is the version of `Task<T>`. That's cool, but if before I had to use `Async.AwaitTask` to integrate my F# Async workflows with Task, what should I do wit...

Null coalescing operator IList, Array, Enumerable.Empty in foreach

In [this question](https://stackoverflow.com/questions/3088147/why-does-net-foreach-loop-throw-nullrefexception-when-collection-is-null) I found the following: ``` int[] array = null; foreach (int i...

ASP NET Core JWT authentication allows expired tokens

For some reason my RESTful app allows requests from Angular client with expired token for some time. Generating token: ``` private async Task<string> GenerateJwtToken(ApplicationUser user) { var ...

how to resolve "Unable to find package" nuget error

Working on creating a nuget pkg for a project (A.csproj) which depends on another project (B.csprojec) added as a project reference. Here is the .nuspec , ``` <?xml version="1.0"?> <package > <met...

18 Sep at 01:4

Angular 6 add input on enter key

I have component called `text-editor.component` and this is my html template: ``` <div class="container"> <div id="testo" class="offset-1 text-center" > <input type="text" class="col-8 text-center...

6 Jan at 12:5

Get the center point between many GameObjects in Unity

I have created a game in which you can control X characters at the same time in the same form and they can die at any time. My problem is when I want the game camera to include all these gameobjects. ...

6 May at 06:7

Jenkins pipeline how to change to another folder

Currently i am using Jenkins pipeline script. For running one command, I need to access a folder outside its workspace directory. I tried `sh "cd $workspace/"`, but it returned current workspace fo...

17 Sep at 17:1

Check value in array exists Flutter dart

I am trying to check condition ``` if (value in List) { exist } else { not exist } ``` but nothing to help anyone having an idea then please share. ``` My List = _quantityController[]; ``` ...

18 Sep at 04:32

Namespace "stuck" as Terminating, How I removed it

I had a "stuck" namespace that I deleted showing in this eternal "terminating" status.

27 Jul at 15:22

ServiceStack: Authenticate each request using headers in the HTTP request

I have have read [other posts](https://stackoverflow.com/questions/15804582/servicestack-authentication-process-on-each-request) on the same topic, but I haven't really gotten a clear picture of how t...

Invariant Violation: Text strings must be rendered within a <Text> component

I've upgraded from RN 0.54 to 0.57 and my app has pretty much fallen over due to using React Native Elements. I took use of their error functionality on `TextInput` components which basically enabled...

17 Sep at 12:58

How to change label text in xamarin

I am relatively new to Xamarin forms. I have found out I am unable to change label text from the code behind. Normally I would do `myLabel.text = variable`. Does this work in Xamarin? If it does why d...

17 Sep at 11:6

Entity Framework Core 2.1 - Multiple Providers

What is the right way to work with multiple providers? My Example: ``` { "ConnectionStrings": { "Sqlite": "Data Source=database.db" } } ``` ``` public void ConfigureServices(IServiceCol...

18 Sep at 16:18

PHP with MySQL 8.0+ error: The server requested authentication method unknown to the client

I'm running MySQL version 8 on PHP 7.0. I'm getting the following error when I try to connect to my database from PHP: > Connect Error: SQLSTATE[HY000] [2054] The server requested authentication met...

16 Jun at 18:30

In-line TryGetValue in If conditon and evaluate it's Value

Is there any way how to write `TryGetValue` on one line in If condition. Normal way of calling `TryGetValue` would be: What I am looking for would be something like this. I know that line wouldn't wor...

7 May at 05:47

How to return 404 on wrong API url? (ASP.NET Core + SPA)

I need to return 404 on wrong api call so I can create proper response to user on client side (Angular 5). Currently backend returns status code 200 and index.html, and that results in json parse erro...

16 Sep at 21:24

AttributeError: 'Tensor' object has no attribute 'numpy'

How can I fix this error I downloaded this code from GitHub. ``` predicted_id = tf.multinomial(tf.exp(predictions), num_samples=1)[0][0].numpy() ``` throws the error ``` AttributeError: 'Tensor' ...

Difference between a List's Add and Append method?

Is there a difference between the `.Append()` and the `.Add()` method for lists in C#? I tried searching in Google and in the site but to my surprise no one asked it. My reason for asking is to know i...

4 Apr at 00:24

Pass current transaction to DbCommand

I'm working on a project using ASP.NET Core 2.1 and EF Core 2.1. Although most of queries and commands use EF, some units needs to call stored procedures directly. I can't use `FromSql`, because it ne...

24 Apr at 09:47

Why is IL.Emit method adding additional nop instructions?

I have this code that emits some `IL` instructions that calls `string.IndexOf` on a `null` object: ``` MethodBuilder methodBuilder = typeBuilder.DefineMethod( ...

16 Sep at 00:41