Windows doesn't recognize Docker command

I already installed Docker for windows. when I type `docker --version` command in Command prompt, it doesn't recognize it at all. The message will be this: ``` 'docker' is not recognized as an inte...

25 Mar at 16:53

Azure Durable function - InvalidOperationException when CallActivityAsync

I'm playing around with the [Azure Durable functions](https://learn.microsoft.com/en-us/azure/azure-functions/durable-functions-overview). Currently I'm getting `InvalidOperationException` within Orch...

ServiceStack casting response to CompressedResult throws OutOfMemoryException

I have json data that is being compressed using ServiceStacks's inbuilt ToOptimizedResult method. This has been working fine for a while now, recently though, when the data to be returned is high (50k...

25 Mar at 12:23

Failed to auto-configure a DataSource: 'spring.datasource.url' is not specified

I have created a basic spring boot application from with the Web, MongoDB and JPA dependencies. When I try to run the spring boot application I am getting the following exception: ``` Error starti...

How to downgrade Flutter SDK (Dart 1.x)

I upgraded my Flutter SDK and now my project is broken. I need to basically revert back to a Flutter SDK which uses Dart 1.x. I tried the following in the pubspec.yaml, ``` environment: sdk: ">=1...

24 Mar at 18:26

Flutter: Run method on Widget build complete

I would like to be able to run functions once a Widget has finished building/loading but I am unsure how. My current use case is to check if a user is authenticated and if not, redirect to a login vie...

26 Dec at 10:0

How to do client-side UI events in Blazor

I just started playing around with Blazor and I can already see the great potential of this new framework. I'm wondering, though, how it will handle doing simple things like setting focus on an input...

Difference between Marshal.SizeOf and sizeof

Until now I have just taken for granted that Marshal.SizeOf is the right way to compute the memory size of a blittable struct on the unmanaged heap (which seems to be the consensus here on SO and almo...

7 May at 07:14

When same-named namespaces exist (in current scope), how to refer any of them?

I have: ``` namespace Book { ... } ... ... namespace Company { public class Book { } ... ... ... ... ... ... public class MyBook : Book.smth ...

27 Mar at 07:48

Flutter get context in initState method

I'm not sure if the `initState` is the right function for this. What I'm trying to achieve is to check when the page is rendered to perform some checks and based on them opening a `AlertDialog` to mak...

23 Mar at 21:26

ASP.NET Core WebAPI Cookie + JWT Authentication

we have a SPA (Angular) with API backend (ASP.NET Core WebAPI): SPA is listens on `app.mydomain.com`, API on `app.mydomain.com/API` We use JWT for Authentication with built-in `Microsoft.AspNetCore....

Call F# function from C# passing function as a parameter

I have the following F# function ``` let Fetch logger id = logger "string1" "string2" // search a database with the id and return a result ``` In my C# class I want to call the F# functio...

23 Mar at 12:35

Dynamic HeightRequest not working for StackLayout

In my XAML I have this StackLayout: ``` <StackLayout x:Name="FooterWrapper" Spacing="0" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand" ...

14 Nov at 19:26

How to specify "namespace" and "conformsto" attribute to APIs for services developed using ServiceStack?

We are currently in process of converting our legacy web services (asmx) into REST APIs layer developed using ServiceStack platform. There exists a few Web services having the namespace and Binding C...

Round button with text and icon in flutter

how to have a button with text and icon for the `flutter`? I wanted to have a `button` which looks like icon with a text that is able to put at the bottom of the screen For example, the icon is like...

21 Nov at 13:53

Could not load file or assembly System.Data.SqlClient, Version=4.2.0.2 when I use System.Data.SqlClient Version 4.4.3

I use System.Data.SqlClient Version 4.4.3 for all .NET Standard 2.0 class libraries in my ASP.NET Core 2.0 project. Why do I get > > Could not load file or assembly 'System.Data.SqlClient, Version=4...

how to test if a variable is pd.NaT?

I'm trying to test if one of my variables is pd.NaT. I know it is NaT, and still it won't pass the test. As an example, the following code prints nothing : ``` a=pd.NaT if a == pd.NaT: print("a ...

How do I initialize weights in PyTorch?

How do I initialize weights and biases of a network (via e.g. He or Xavier initialization)?

Converting a POSTMAN request to Curl

I am calling my java webservice (POST request) via POSTMAN in the following manner which works perfectly fine (i.e. I can see my records getting inserted into the database): [](https://i.stack.imgur.c...

2 Feb at 02:13

Project file is incomplete. Expected imports are missing

After format my computer I reinstalled Vs 2017 V 15.6.3 and install ASP.Net Core SDK from Microsoft 2.1.4 But when I create new asp core application VS failed with error > "Project file is incomplet...

9 Apr at 13:40

await is only valid in async function

I wrote this code in `lib/helper.js`: ``` var myfunction = async function(x,y) { .... return [variableA, variableB] } exports.myfunction = myfunction; ``` Then I tried to use it in another file...

9 Jul at 11:37

How to represent Guid in typescript?

let's say I have this C# class ``` public class Product { public Guid Id { get; set; } public string ProductName { get; set; } public Decimal Price { get; set; } public int Level { get; s...

22 Mar at 15:18

TS2531: Object is possibly 'null'

I have the following function:- ``` uploadPhoto() { var nativeElement: HTMLInputElement = this.fileInput.nativeElement; this.photoService.upload(this.vehicleId, nativeElement.files[0]) ...

22 Mar at 14:58

Dotnet build fails when project includes foreign language resources

I am using Visual Studio 15.6.3, dotnet SDK 2.1.102. Recently, (maybe after an update) I tracked down a dotnet build bug that is showing up to a project that includes foreign language resources. The ...

15 May at 09:2

Why does .NET Core 2.0 perform worse than .NET Framework 4.6.1

I've wrote a program that creates 4 threads which each sort 20.000 numbers from low to high 50 times. I've runned this test several times on .NET Core 2.0 and .NET Framework 4.6.1. In this test .NET F...

13 Dec at 12:58