Show "A path base can only be configured using IApplicationBuilder.UsePathBase()." · Issue #21081 · dotnet/aspnetcore · GitHub
![c# - System.InvalidOperationException: 'A path base can only be configured using IApplicationBuilder.UsePathBase().' - Stack Overflow c# - System.InvalidOperationException: 'A path base can only be configured using IApplicationBuilder.UsePathBase().' - Stack Overflow](https://i.stack.imgur.com/k9a0r.jpg?s=64&g=1)
c# - System.InvalidOperationException: 'A path base can only be configured using IApplicationBuilder.UsePathBase().' - Stack Overflow
![c# - Startup.cs missing. How to change the start up URL of ASP.NET Core MVC application - Stack Overflow c# - Startup.cs missing. How to change the start up URL of ASP.NET Core MVC application - Stack Overflow](https://i.stack.imgur.com/1FTyL.png)
c# - Startup.cs missing. How to change the start up URL of ASP.NET Core MVC application - Stack Overflow
![TestServer & ASP.NET Core 5: Fix “System.InvalidOperationException : Solution root could not be located using application root” with a custom Startup file – Anthony Giretti's .NET blog TestServer & ASP.NET Core 5: Fix “System.InvalidOperationException : Solution root could not be located using application root” with a custom Startup file – Anthony Giretti's .NET blog](https://anthonygiretti.com/wp-content/uploads/2021/03/fix-content-root-testserver.png)