“Startup.Configuration”和“Startup.Configuration”

Question

我在启动类中收到“‘Startup.Configuration’和‘Startup.Configuration’之间的歧义”错误。我不知道我做了什么导致这个问题。我所做的就是创建一个 DBContext 类，但发生了这个错误。请在下面查看我的代码：启动.csusing Microsoft.AspNetCore.Builder;using Microsoft.AspNetCore.Hosting;using Microsoft.AspNetCore.HttpsPolicy;using Microsoft.AspNetCore.Mvc;using Microsoft.AspNetCore.SpaServices.AngularCli;using Microsoft.Extensions.Configuration;using Microsoft.Extensions.DependencyInjection;using Microsoft.EntityFrameworkCore;using Microsoft.AspNetCore.Identity;using System;using Microsoft.AspNetCore.Authentication.JwtBearer;using Microsoft.IdentityModel.Tokens;using System.Text;using IssueTracker.Data;namespace IssueTracker{    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.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);            // In production, the Angular files will be served from this directory            services.AddSpaStaticFiles(configuration =>            {                configuration.RootPath = "ClientApp/dist";            });            // Enabling CORS            services.AddCors(options =>             {                options.AddPolicy("EnableCORS", builder =>                 {                    builder.AllowAnyOrigin().AllowAnyHeader().AllowAnyMethod().AllowCredentials().Build();                });            });            // Connect to the Database            services.AddDbContext<ApplicationDbContext>(options => options.UseSqlServer(Configuration.getConnectionString("DefaultConnection")));        }     

Answer 1

我遇到了同样的错误，只需关闭并重新打开我的 IDE (Visual Studio Code) 即可解决。我希望它有帮助

Answer 2

我出于备份目的复制了解决方案文件，然后出现了该错误。当我删除备份文件时问题解决了。

Answer 3

出现此错误的原因之一可能是您不小心制作了Startup.cs文件副本。