Why am I getting a encoding error with my ASP.NET Core View?

Question

I've recently stepped into ASP.NET Core and I'm working through some documentation but one thing has cropped up more than one that I can't find the solution too. When I run my application I get the following error in the console:

The character encoding of the plain text document was not declared. The document will render with garbled text in some browser configurations if the document contains characters from outside the US-ASCII range. The character encoding of the file needs to be declared in the transfer protocol or file needs to use a byte order mark as an encoding signature.

When I searched on this error I saw messages stating that I should add the base encoding declaration to the document head. That made sense but didn't work.

Here is my current setup:

HomeController

using Microsoft.AspNetCore.Mvc;
using Senua.Models;
using System.Diagnostics;

namespace Senua.Controllers
{
    public class HomeController : Controller
    {
        public IActionResult Index()
        {
            return View();
        }
        [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
        public IActionResult Error()
        {
            return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
        }
    }
}

Views/Home/Index.cshtml

@{
    ViewData["Title"] = "Index";
}

Index

Views/Shared/Layout

I've shortened this for brevity.





    
    
    @ViewData["Title"] - WebApplication1

    
        
        
    
    
        
        
    


    
    
        @RenderBody()
    

    
        
        
        
    
    
        
        
        
    

    @RenderSection("Scripts", required: false)

Views/ViewStart.cshtml

@{
    Layout = "_Layout";
}

Views/ViewIMports.cshtml

@using Senua
@using Senua.Models
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers

Startup.cs

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Senua.DAL;

namespace Senua
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddDbContext(opt => opt.UseSqlServer(Configuration.GetConnectionString("Melina")));
            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");
                app.UseHsts();
            }

            app.UseHttpsRedirection();
            app.UseMvc();
        }
    }
}

So that's the setup in a nutshell. As far as I can see the ViewStart defines layout which should deliver the document setup and then renderbody is in place to delivery content from the homepage. Home has it's controller and method to return the view. What am I missing?

Many thanks

Yanayaya · Accepted Answer

I did a little more code examination and discovered that the problem was coming from the Startup.cs. Whilst I had defined app.UseMVC() I had not set the route for the default path. Changing this allowed me to work with views and the controller to be accessed correctly.

Startup.cs (Original)

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");
                app.UseHsts();
            }

            app.UseHttpsRedirection();
            app.UseMvc();
        }

Startup.cs (Revised)

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");
                app.UseHsts();
            }

            app.UseHttpsRedirection();
            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "default",
                    template: "{controller=Home}/{action=Index}/{id?}");
            });
        }

Why am I getting a encoding error with my ASP.NET Core View?

Answers (1)

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