Question

我在Docker中运行的ASP.Net Core 2解决方案在运行VS 2017 Professional的1台计算机上正常运行但在另一台运行VS 2017社区的计算机上运行时出现以下错误

“System.InvalidOperationException：'路径库只能是使用IApplicationBuilder.UsePathBase（）配置。'“

当我尝试使用docker启动或调试解决方案时。如果我使用IIS Express启动解决方案，它可以正常工作。

我的项目没有什么特别之处：

public class Program
{
    public static void Main(string[] args)
    {
        BuildWebHost(args).Run(); // <- Exception happens here
    }

    public static IWebHost BuildWebHost(string[] args) =>
        WebHost.CreateDefaultBuilder(args)
            .CaptureStartupErrors(true)
            .UseStartup<Startup>()
            .Build();
}

public class Startup
{
    public Startup(IHostingEnvironment env)
    {

    }

    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();
    }

    // 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();
        }

        app.UseMvc();
    }
}

我也会在新窗口中弹出这个：

crit: Microsoft.AspNetCore.Server.Kestrel[0]
      Unable to start Kestrel.
System.InvalidOperationException: A path base can only be configured using IApplicationBuilder.UsePathBase().
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.<BindAddressAsync>d__7.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.AddressesStrategy.<BindAsync>d__2.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.<BindAsync>d__0.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer.<StartAsync>d__21`1.MoveNext()

我在这个问题上读过的所有内容似乎都没有关系。有什么想法吗？

Answer 1

我正在applicationUrl的{{1}}中设置相对路径，这导致了错误：

launchSettings.json

我将其改回了根URL，而是添加了一个"applicationUrl": "https://localhost:5001/admin",，其路径可修复错误并在启动时启动了我想要的路径：

launchUrl

Answer 2

尝试在运行时在launchOptions中为applicationUrl添加基本路径。

参考：Check Here

System.InvalidOperationException：'只能使用IApplicationBuilder.UsePathBase（）配置路径库。

2 个答案: