我们正在将我们的一个应用程序（在本例中为 IdentityServer）从 .NET 5 更新到 .NET 6。它由 IIS 托管并由 Azure Devops Services 部署。我们看到的问题是，在我们的开发环境中，网站无法加载，但在我们的临时环境中，它运行得很好。我们在开发中看到的错误是
12:45:37.519|Fatal|1||Host terminated unexpectedly.||
System.IO.DirectoryNotFoundException: D:\agent\_work\38\s\IdentityServer\wwwroot\
at Microsoft.Extensions.FileProviders.PhysicalFileProvider..ctor(String root, ExclusionFilters filters)
at Microsoft.Extensions.FileProviders.PhysicalFileProvider..ctor(String root)
at Microsoft.AspNetCore.Hosting.StaticWebAssets.StaticWebAssetsLoader.<>c.<UseStaticWebAssetsCore>b__1_0(String contentRoot)
at Microsoft.AspNetCore.StaticWebAssets.ManifestStaticWebAssetFileProvider..ctor(StaticWebAssetManifest manifest, Func`2 fileProviderFactory)
at Microsoft.AspNetCore.Hosting.StaticWebAssets.StaticWebAssetsLoader.UseStaticWebAssetsCore(IWebHostEnvironment environment, Stream manifest)
at Microsoft.AspNetCore.Hosting.StaticWebAssets.StaticWebAssetsLoader.UseStaticWebAssets(IWebHostEnvironment environment, IConfiguration configuration)
at Microsoft.AspNetCore.WebHost.<>c.<ConfigureWebDefaults>b__9_0(WebHostBuilderContext ctx, IConfigurationBuilder cb)
at Microsoft.AspNetCore.Hosting.GenericWebHostBuilder.<>c__DisplayClass9_0.<ConfigureAppConfiguration>b__0(HostBuilderContext context, IConfigurationBuilder builder)
at Microsoft.Extensions.Hosting.HostBuilder.BuildAppConfiguration()
at Microsoft.Extensions.Hosting.HostBuilder.Build()
at IdentityServer.Program.Main(String[] args) in D:\agent\_work\38\s\IdentityServer\Program.cs:line 23
它报告的路径D:\agent\_work\38\s\IdentityServer\wwwroot\很有趣，因为该路径与 DevOps 构建机器的路径相同。如果我们恢复到 .NET 5，我们就不会看到此错误，并且我们在临时计算机上也不会看到该问题。
该类Program.cs定义为
12:45:37.519|Fatal|1||Host terminated unexpectedly.||
System.IO.DirectoryNotFoundException: D:\agent\_work\38\s\IdentityServer\wwwroot\
at …