Error occurred when trying to create a controller of type 'EmployeeController'. Make sure controller has a parameterless public constructor

Why I'm I getting this error on Employee Controller rest of them are working perfectly Here is my Employee Controller ``` public class EmployeeController : ApiController { #region Call ...

How to use the projection/camera technique in c#

I drew the following grid: [](https://i.stack.imgur.com/6UUqT.png) The above grid is drawn using the following two methods, one to calculate the grid and the other to calculate the centers for each ...

Swagger UI - " TypeError: Failed to fetch" on valid response

I've just pulled down the latest Swagger from the Git repo (3.0.19) using: [https://github.com/swagger-api/swagger-ui.git](https://github.com/swagger-api/swagger-ui.git) and updated my API to use the ...

18 Jul at 05:46

ServiceStack OrmLite: Use default database constraint instead of null value from data model

I'm still pretty new to these technologies. I've run into a small issue, and it's one that can be fixed by writing some lazy code...but OrmLite and ServiceStack streamline so many things, I'm wonderin...

The Mix manifest does not exist when it does exist

For my admin panel I extract all the assets including the `manifest-json.js` to `mix.setPublicPath(path.normalize('public/backend/'))`. All the files get correctly added to the backend folder, and th...

17 Jul at 21:11

How to seed in Entity Framework Core 2?

I have two tables, and I want to fill them using seeds. I use ASP.NET Core 2 in Ubuntu. How to populate the data for the two tables where one is connected to the other via a foreign key? The Flowmeter...

14 Feb at 21:20

/bin/sh: apt-get: not found

I am trying to change a dockerFile to work with aspell. I have a bash script that I want to wrap in a dock > Step 4: Wrap the script in a Docker container.The sample SDK we downloaded earlier contains...

22 Sep at 21:15

Create a table if it does not exist?

Using Entity Framework Core, is there a way to create the table if it does not yet exist? Exception will throw even if `EnsureCreated` is called in the context: ``` DbSet<Ticker> Ticker { get; set } ...

How to get bool result from async task<bool> function in C# - Error: Cannot implicitly convert type `void' to `bool'

I have created task function for validating my json file. Everything works fine until I didn't use the result. When I am trying to get the result from `async task<bool> function` it is showing error a...

27 May at 17:20

How do I upgrade the Python installation in Windows 10?

I have a Python 2.7.11 installed on one of my LAB stations. I would like to upgrade Python to at least 3.5. How should I do that ? Should I prefer to completely uninstall 2.7.11 and than install the ...

17 Jul at 06:33

Class has no objects member

``` def index(request): latest_question_list = Question.objects.all().order_by('-pub_date')[:5] template = loader.get_template('polls/index.html') context = {'latest_question_list':latest_que...

11 Apr at 12:53

C# re-use LINQ expression for different properties with same type

I have a class with several `int` properties: ``` class Foo { string bar {get; set;} int a {get; set;} int b {get; set;} int c {get; set;} } ``` I have a LINQ expression I wish...

16 Jul at 23:7

Get string extra from activity Kotlin

I want to get a string extra in another activity from an intent. This is the way to create my intent ``` val intent = Intent(this, Main2Activity::class.java) intent.putExtra("samplename", "ab...

16 Jul at 20:57

File permissions on Linux/Unix with .NET Core

I am trying to learn how to set file permissions on Linux/Unix with .NET Core. I already found a question on here that points me in the direction of System.IO.FileSystem, but I can't seem to find any...

31 Oct at 20:37

How to start ChromeDriver in headless mode

I want to try out headless chrome, but I am running into this issue, that I can't start the driver in headless mode. I was following [google documentation](https://developers.google.com/web/updates/20...

23 Aug at 10:49

Visual Studio 2017 - How do I duplicate the current line?

I want to duplicate the current line to a new line below it. I found [this](https://stackoverflow.com/questions/30203752/how-do-i-duplicate-a-line-or-selection-within-visual-studio-code) post but I ca...

Difference between HttpModule and HttpClientModule

Which one to use to build a mock web service to test the Angular 4 app?

Xunit Namespace Could not be Found in Visual Studio Code

I'm using Visual Studio Code for a .NET Core Project. I have an ASP.NET Core Project for which i want to create a separate unit tests project, i created a sub folder and ran ``` dotnet new xunit dotn...

16 Jul at 11:8

Spring Scheduling - Cron expression for everyday at midnight not working?

I am trying to schedule a task in Spring which is to be run everyday at midnight. I followed the [official guide](https://spring.io/guides/gs/scheduling-tasks/) from Spring and made the scheduler clas...

Mounts denied. The paths ... are not shared from OS X and are not known to Docker

The command `docker run -v /var/folders/zz/...` produces the following error. ``` docker: Error response from daemon: Mounts denied: The paths /var/folders/zz/... and /var/folders/zz/... are not sha...

27 Jan at 09:24

How to add Maven to the Path variable?

I have downloaded the [maven 3.5.0](http://apache.cs.utah.edu/maven/maven-3/3.8.4/binaries/apache-maven-3.8.4-bin.zip) from [here](https://maven.apache.org/download.cgi). I have set it in the path: ``...

3 Mar at 13:56

ServiceStack Wrapper for Bloomberg OpenFIGI

I need to make the following call to an open API ([https://www.openfigi.com/api](https://www.openfigi.com/api)) Curl Example: ``` curl -v -X POST 'https://api.openfigi.com/v1/mapping' \ --hea...

15 Jul at 15:8

C# String Interpolation on <appSettings>

I am liking the new Interpolation syntax of C#. I want to store a dynamic string in my .config file under `appSettings` and apply interpolation on it. The expected value of `interpolatedMessage` is `...

15 Jul at 12:24

How to import and use image in a Vue single file component?

I think this should be simple, but I am facing some trouble on how to import and use an image in Vue single file component. Can someone help me how to do this? Here is my code snippet: ``` <template l...

11 Aug at 07:49

phpMyAdmin access denied for user 'root'@'localhost' (using password: NO)

I am unable to connect to my MySQL in xampp I have this error: > MySQL said: Documentation > #1045 - Access denied for user 'root'@'localhost' (using password: NO) mysqli_real_connect(): (HY000/1045):...

4 Nov at 04:56