ASP.NET CORE 2.2 Localization doesn't work on the server

Question

I've been trying to make a simple blog website on .net core 2.2 with Localization. Everything works locally, but on the server, doesn't work.

I added in AssemblyInfo.cs file: [assembly: RootNamespace("e_cosmetics")]

This is Startup.cs

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.AddLocalization(options => options.ResourcesPath = "Resources");

            services.AddMvc()
                .AddViewLocalization(LanguageViewLocationExpanderFormat.Suffix)
                .AddDataAnnotationsLocalization();

            services.Configure<CookiePolicyOptions>(options =>
            {
                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
                options.CheckConsentNeeded = context => true;
                options.MinimumSameSitePolicy = SameSiteMode.None;
            });


            services.AddDbContext<ApplicationDbContext>(options =>
                options.UseSqlServer(
                    Configuration.GetConnectionString("DefaultConnection")));

            //services.AddDefaultIdentity<IdentityUser>()
            services.AddIdentity<User, IdentityRole>()
                .AddDefaultUI(UIFramework.Bootstrap4)
                .AddDefaultTokenProviders()
                .AddEntityFrameworkStores<ApplicationDbContext>();


            services.Configure<RequestLocalizationOptions>(
        opts =>
        {
            var supportedCultures = new List<CultureInfo>
            {
                new CultureInfo("en-US"),
                new CultureInfo("bg-BG")
            };

            opts.DefaultRequestCulture = new RequestCulture("bg-BG");
            // Formatting numbers, dates, etc.
            opts.SupportedCultures = supportedCultures;
            // UI strings that we have localized.
            opts.SupportedUICultures = supportedCultures;
        });

            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
        }

HomeController.cs

public class HomeController : Controller
{
    [HttpPost]
    public IActionResult SetLanguage(string culture, string returnUrl)
    {
        Response.Cookies.Append(
            CookieRequestCultureProvider.DefaultCookieName,
            CookieRequestCultureProvider.MakeCookieValue(new RequestCulture(culture)),
            new CookieOptions { Expires = DateTimeOffset.UtcNow.AddYears(1) }
        );

        return LocalRedirect(returnUrl);
    }

_SelectLanguagePartial.cshtml

@inject IViewLocalizer Localizer
@inject IOptions<RequestLocalizationOptions> LocOptions

@{
    var requestCulture = Context.Features.Get<IRequestCultureFeature>();
    var cultureItems = LocOptions.Value.SupportedUICultures
        .Select(c => new SelectListItem { Value = c.Name, Text = c.DisplayName })
        .ToList();
}

<div title="@Localizer["Request culture provider:"] @requestCulture?.Provider?.GetType().Name">
    <form id="selectLanguage" asp-controller="Home"
          asp-action="SetLanguage" asp-route-returnUrl="@Context.Request.Path"
          method="post" class="form-horizontal" role="form">
        @Localizer["Language:"] <select name="culture"
                                        asp-for="@requestCulture.RequestCulture.UICulture.Name" asp-items="cultureItems"></select>
        <button type="submit" class="btn btn-default btn-xs">Save</button>

    </form>
</div>

about.cshtml

@using Microsoft.AspNetCore.Mvc.Localization
@inject IViewLocalizer Localizer

<section class="about-wrapper">
    <div class="main-nav">
        <h1>@Localizer["За Нас"]</h1>

        <ul>
            <li><a asp-controller="Home" asp-action="index">@Localizer["Начало"]</a></li>
            <li><p>@Localizer["За Нас"]</p></li>
        </ul>
    </div>

web.config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <system.web>
    <globalization culture="bg-BG" uiCulture="bg-BG" />
  </system.web>
</configuration>

Resources

Views.Home.about.en-US.resx

If somebody give me advice how to fix with the problem, I will be really thankful.

Answer 1

I found the solution for my problem.

This can occur when a project's name is not a valid .NET identifier. For instance my-project-name.csproj will use the root namespace my_project_name and the assembly name my-project-name leading to this error. Blockquote

I changed the name of the project and folder and now works.