Cannot open asp.net mvc website in browser using IIS express

Question

I cannot open asp.net mvc website(c#) with the url "https://localhost:44366" in browser when the mode is "IIS Express". But when I use the mode "WebApplication5", I can open https://localhost:5001.

launchSettings.json

{
  "iisSettings": {
    "windowsAuthentication": false,
    "anonymousAuthentication": true,
    "iisExpress": {
      "applicationUrl": "http://localhost:44179",
      "sslPort": 44366
    }
  },
  "profiles": {
    "IIS Express": {
      "commandName": "IISExpress",
      "launchBrowser": true,
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development",
        "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation"
      }
    },
    "WebApplication5": {
      "commandName": "Project",
      "dotnetRunMessages": "true",
      "launchBrowser": true,
      "applicationUrl": "https://localhost:5001;http://localhost:5000",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development",
        "ASPNETCORE_HOSTINGSTARTUPASSEMBLIES": "Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation"
      }
    }
  }
}

Visual Studio 2019 Output when debugging:

Starting IIS Express ...
Successfully registered URL "http://localhost:44179/" for site "WebApplication5" application "/"
Successfully registered URL "https://localhost:44366/" for site "WebApplication5" application "/"
Registration completed for site "WebApplication5"
IIS Express is running.

'iisexpress.exe' (CoreCLR: DefaultDomain): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\5.0.3\System.Private.CoreLib.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Users\zhangsiyu\source\repos\WebApplication5\WebApplication5\bin\Debug\net5.0\WebApplication5.dll'. Symbols loaded.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\5.0.3\System.Runtime.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\5.0.3\Microsoft.AspNetCore.Server.IIS.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\5.0.3\Microsoft.Extensions.Hosting.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\5.0.3\netstandard.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\5.0.3\Microsoft.Extensions.Hosting.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\5.0.3\Microsoft.AspNetCore.Hosting.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\5.0.3\Microsoft.AspNetCore.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'iisexpress.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App\5.0.3\Microsoft.Extensions.Configuration.Abstractions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.

add "applicationUrl": "https://localhost:5001;http://localhost:5000", in IIS EXPRESS section — Vivek Nuna
– Vivek Nuna, Commented Mar 3, 2021 at 8:46
have you tried "launchUrl": "default". where default is your default controller name — Vivek Nuna
– Vivek Nuna, Commented Mar 3, 2021 at 8:59
@viveknuna I created a new project and unchecked the "Configure for HTTPS" option. And it's working now.Thanks anyway.:) — ZSY-ARCH
– ZSY-ARCH, Commented Mar 3, 2021 at 9:10
another way you can just set "sslPort": 0, it will work. no need to create new project — Vivek Nuna
– Vivek Nuna, Commented Mar 3, 2021 at 9:12

Vivek Nuna · Accepted Answer · 2021-03-03 10:07:32Z

1

Set "sslPort": 0 in the appsettings.json file. it will work as HTTP.

answered Mar 3, 2021 at 10:07

Vivek Nuna

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