Visual studio 2019 debugging option IISExpress is gone from drop down

The options to debug with IISExpress in Visual Studio 2019 is not showing up in the debugger drop-down, it only shows the Docker compose option.

How can I get the IISExpress option to appear?

Here is mylaunchsettings.json file:

{
  "iisSettings": {
    "windowsAuthentication": false,
    "anonymousAuthentication": true,
    "iisExpress": {
      "applicationUrl": "http://localhost:56466",
      "sslPort": 44311
    }
  },
  "profiles": {
    "IIS Express": {
      "commandName": "IISExpress",
      "launchBrowser": true,
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    },
    "DirectoryTools": {
      "commandName": "Project",
      "launchBrowser": true,
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      },
      "applicationUrl": "https://localhost:5001;http://localhost:5000"
    },
    "Docker": {
      "commandName": "Docker",
      "launchBrowser": true,
      "launchUrl": "{Scheme}://{ServiceHost}:{ServicePort}/api/values",
      "httpPort": 10003,
      "useSSL": true,
      "sslPort": 44382
    }
  }
}

Solution

I had the same problem. You can enable IIS Express debug/run by selecting Properties from the solution (.sln) context menu, then in the Startup project menu, choose Single startup project radio button, and from the drop-down list select the Project that corresponds to your web application. After applying the change, in the toolbar you should see the "IIS Express" button re-appear.