HtmlParser. Failed to load file or assembly

Question

Bug Report

System.TypeInitializationException  
  HResult = 0x80131534  
  Message = Initializer type "AngleSharp.Configuration" threw an exception.  
  Source = AngleSharp  
  Stack trace:  
   in AngleSharp.Configuration.get_Default ()  
   in AngleSharp.BrowsingContext.NewFrom [TService] (TService instance)  
   in AngleSharp.Html.Parser.HtmlParser..ctor ()  
   in rsh.Parser_test..ctor () in Z: \ vs \ csharp \ prb \ rsh \ rsh \ Parser_test.cs: line 19  
   in rsh.Form1..ctor () in Z: \ vs \ csharp \ prb \ rsh \ rsh \ Form1.cs: line 18  
   in rsh.Program.Main () in Z: \ vs \ csharp \ prb \ rsh \ rsh \ Program.cs: line 19  

Internal exception 1:  
FileNotFoundException: Failed to load file or assembly  
"System.Text.Encoding.CodePages, Version = 4.0.2.0, Culture = neutral, PublicKeyToken = b03f5f7f11d50a3a" or one of their dependencies. Cannot find the specified file. 

Can you reproduce the problem in a MWE?
no

Are you running the latest version of AngleSharp?
Version - 0.10.1

Did you check the FAQs to see if that helps you?
used google search. did not help

Are you reporting to the correct repository? (there are multiple AngleSharp libraries, e.g., AngleSharp.Css for CSS support)
see screen

Did you perform a search in the issues? Searched for phrase: "Failed to load file or assembly"

Description
I get the error "Failed to load file or assembly" during application launch

Steps to Reproduce Error occurs when starting the application

Environment details: [OS, .NET Runtime, ...]
Win 7x64. VS - 2017 .NET Framework 4.6.1

Code

using AngleSharp.Html.Parser;

namespace rsh
{
    class Parser_test
    {
        HtmlParser domParser;

        public Parser_test()
        {
            domParser = new HtmlParser();
        }

    }
}

I installed:
"System.Text.Encoding.CodePages".
Error remained.
Additional reasoning - link
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Update-1
Based on - stackoverflow.com/a/40775352/10530657
Completed
Update-Package -reinstall.
Closed, opened Visual Studio.
Opened in Visual Studio 2015.

No result.

Update-2
Installed "AngleSharp - 0.9.11".
The error is gone.

Update-3
Installed - System.Text.Encoding.CodePages
Pic.5

Update-4
Collected the console project, The project gives an error.
Maybe someone will have the opportunity to check on their side.
Or send me a project that works.
Maybe this will help identify the cause of the error.

The project is made on the basis of documentation "AngleSharp"- documentation . link
Link to the project - link

Question
How to make the error not appear in "AngleSharp - 0.10.01"?

Answer 1

i had the same problem

your project > rightClick > manage nuget packages >

search : System.Text.Encoding.CodePages install that .

---

long:

anglesharp nuget details:

.net framework 4.6 requires "System.Text.Encoding.CodePages".

just installing angleSharp, doesn't install the required package automatically. you need to install from nuget package manager.

Answer 2

I had the same exception, and it took me a few minutes to realize....

If you have AngleSharp in a class library, you also need to install it in whatever is consuming the class library.

Oops.