There is no registered service of type 'System.Net.Http.HttpClient' [Blazor] [.Net Core 3 preview 6]

I tried to use the HttpClient in Blazor Server Side to get the Weatherforecasts. But i got this issue.

To Reproduce

.NET Core 3.0 SDK 3.0.100-preview6-012264

Startup.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.HttpsPolicy;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using fehlerbericht.Data;

namespace fehlerbericht
{
    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.
        // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddRazorPages();
            services.AddServerSideBlazor();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");
                // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
                app.UseHsts();
            }

            app.UseHttpsRedirection();
            app.UseStaticFiles();

            app.UseRouting();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
                endpoints.MapBlazorHub();
                endpoints.MapFallbackToPage("/_Host");
            });
        }
    }
}

FetchData.razor

@using fehlerbericht.Data
@using fehlerbericht.Shared
@page "/fetchdata"
@inject HttpClient Http
<h1>Weather forecast</h1>
<p>This component demonstrates fetching data from the server.</p>
@if (forecasts == null)
{
    <p><em>Loading...</em></p>
}
else
{
    <table class="table">
        <thead>
            <tr>
                <th>Date</th>
                <th>Temp.  (C)</th>
                <th>Temp.  (F)</th>
                <th>Summary</th>
            </tr>
        </thead>
        <tbody>
            @foreach (var forecast in forecasts)
            {
                <tr>
                    <td>@forecast.Date.ToShortDateString()</td>
                    <td>@forecast.TemperatureC</td>
                    <td>@forecast.TemperatureF</td>
                    <td>@forecast.Summary</td>
                </tr>
            }
        </tbody>
    </table>
}
@functions {
    WeatherForecast[] forecasts;
    protected override async Task OnInitAsync()
    {
        forecasts = await Http.GetJsonAsync<WeatherForecast[]>("api/SampleData/WeatherForecasts");
    }
}

SampleDataController.cs

using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Linq;

namespace fehlerbericht.Data
{

    [Route("api/[controller]")]
    public class SampleDataController : Controller
    {
        private static string[] Summaries = new[]
        {
        "Freezing", "Bracing", "Chilly", "Cool", "Mild",
        "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
    };
        [HttpGet("[action]")]
        public IEnumerable<WeatherForecast> WeatherForecasts()
        {
            var rng = new Random();
            return Enumerable.Range(1, 5)
                             .Select(index => new WeatherForecast
                             {
                                 Date = DateTime.Now.AddDays(index),
                                 TemperatureC = rng.Next(-20, 55),
                                 Summary = Summaries[rng.Next(Summaries.Length)]
                             });
        }
    }
}

WeatherForecast.cs

using System;

namespace fehlerbericht.Data
{
    public class WeatherForecast
    {
        public DateTime Date { get; set; }

        public int TemperatureC { get; set; }

        public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);

        public string Summary { get; set; }
    }
}

Error when opening FetchData.razor

System.InvalidOperationException: Cannot provide a value for property 'Http' on type 'fehlerbericht.Pages.FetchData'. There is no registered service of type 'System.Net.Http.HttpClient'.
   at Microsoft.AspNetCore.Components.ComponentFactory.<>c__DisplayClass6_0.<CreateInitializer>b__2(IComponent instance)
   at Microsoft.AspNetCore.Components.ComponentFactory.PerformPropertyInjection(IComponent instance)
   at Microsoft.AspNetCore.Components.ComponentFactory.InstantiateComponent(Type componentType)
   at Microsoft.AspNetCore.Components.Rendering.Renderer.InstantiateChildComponentOnFrame(RenderTreeFrame& frame, Int32 parentComponentId)
   at Microsoft.AspNetCore.Components.RenderTree.RenderTreeDiffBuilder.InitializeNewComponentFrame(DiffContext& diffContext, Int32 frameIndex)
   at Microsoft.AspNetCore.Components.RenderTree.RenderTreeDiffBuilder.InitializeNewSubtree(DiffContext& diffContext, Int32 frameIndex)
   at Microsoft.AspNetCore.Components.RenderTree.RenderTreeDiffBuilder.InsertNewFrame(DiffContext& diffContext, Int32 newFrameIndex)
   at Microsoft.AspNetCore.Components.RenderTree.RenderTreeDiffBuilder.AppendDiffEntriesForRange(DiffContext& diffContext, Int32 oldStartIndex, Int32 oldEndIndexExcl, Int32 newStartIndex, Int32 newEndIndexExcl)
   at Microsoft.AspNetCore.Components.RenderTree.RenderTreeDiffBuilder.ComputeDiff(Renderer renderer, RenderBatchBuilder batchBuilder, Int32 componentId, ArrayRange`1 oldTree, ArrayRange`1 newTree)
   at Microsoft.AspNetCore.Components.Rendering.ComponentState.RenderIntoBatch(RenderBatchBuilder batchBuilder, RenderFragment renderFragment)
   at Microsoft.AspNetCore.Components.Rendering.Renderer.RenderInExistingBatch(RenderQueueEntry renderQueueEntry)
   at Microsoft.AspNetCore.Components.Rendering.Renderer.ProcessRenderQueue()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Components.Server.Circuits.CircuitPrerenderer.CircuitHost_UnhandledException(Object sender, UnhandledExceptionEventArgs e)
   at Microsoft.AspNetCore.Components.Server.Circuits.CircuitHost.Renderer_UnhandledException(Object sender, Exception e)
   at Microsoft.AspNetCore.Components.Browser.Rendering.RemoteRenderer.HandleException(Exception exception)
   at Microsoft.AspNetCore.Components.Rendering.Renderer.ProcessRenderQueue()
   at Microsoft.AspNetCore.Components.Rendering.Renderer.AddToRenderQueue(Int32 componentId, RenderFragment renderFragment)
   at Microsoft.AspNetCore.Components.RenderHandle.Render(RenderFragment renderFragment)
   at Microsoft.AspNetCore.Components.ComponentBase.StateHasChanged()
   at Microsoft.AspNetCore.Components.ComponentBase.CallOnParametersSetAsync()
   at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()
   at Microsoft.AspNetCore.Components.Server.Circuits.CircuitPrerenderer.CircuitHost_UnhandledException(Object sender, UnhandledExceptionEventArgs e)
   at Microsoft.AspNetCore.Components.Server.Circuits.CircuitHost.Renderer_UnhandledException(Object sender, Exception e)
   at Microsoft.AspNetCore.Components.Browser.Rendering.RemoteRenderer.HandleException(Exception exception)
   at Microsoft.AspNetCore.Components.Rendering.Renderer.AddToPendingTasks(Task task)
   at Microsoft.AspNetCore.Components.Rendering.ComponentState.SetDirectParameters(ParameterCollection parameters)
   at Microsoft.AspNetCore.Components.Rendering.Renderer.RenderRootComponentAsync(Int32 componentId, ParameterCollection initialParameters)
   at Microsoft.AspNetCore.Components.Rendering.HtmlRenderer.CreateInitialRenderAsync(Type componentType, ParameterCollection initialParameters)
   at Microsoft.AspNetCore.Components.Rendering.HtmlRenderer.RenderComponentAsync(Type componentType, ParameterCollection initialParameters)
   at Microsoft.AspNetCore.Components.Server.Circuits.CircuitHost.<>c__DisplayClass41_0.<<PrerenderComponentAsync>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.<>c__11`1.<<InvokeAsync>b__11_0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Components.Server.Circuits.CircuitPrerenderer.PrerenderComponentAsync(ComponentPrerenderingContext prerenderingContext)
   at Microsoft.AspNetCore.Mvc.Rendering.HtmlHelperComponentPrerenderingExtensions.RenderComponentAsync[TComponent](IHtmlHelper htmlHelper, Object parameters)
   at fehlerbericht.Pages.Pages__Host.<ExecuteAsync>b__22_1() in C:\Users\praktikant\source\repos\fehlerbericht\fehlerbericht\Pages\_Host.cshtml:line 25
   at Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperExecutionContext.SetOutputContentAsync()
   at fehlerbericht.Pages.Pages__Host.ExecuteAsync()
   at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageCoreAsync(IRazorPage page, ViewContext context)
   at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageAsync(IRazorPage page, ViewContext context, Boolean invokeViewStarts)
   at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderAsync(ViewContext context)
   at Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ViewContext viewContext, String contentType, Nullable`1 statusCode)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResultFilterAsync>g__Awaited|29_0[TFilter,TFilterAsync](ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResultExecutedContextSealed context)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.ResultNext[TFilter,TFilterAsync](State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeResultFilters()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|24_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeFilterPipelineAsync()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
   at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)

Expected behavior

Standard Weatherforecasts

dotnet / aspnetcore

There is no registered service of type 'System.Net.Http.HttpClient' [Blazor] [.Net Core 3 preview 6] #11956

To Reproduce

Expected behavior