Upgrading from dnx to vs2017 aspnetcore

Question

So I just installed VS2017 and loaded my application. It asked to migrate and there were a tonne of issues which I have now fixed. The last remaining issues are the followin

Answer 1

Looks like there is a typo in your launchSettings.json

  "profiles": {
    "IIS Express": {
    "commandName": "IISExpress",
    "launchBrowser": true,
    "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
     }
    },

Answer 2

This error occurred to me, I use Visual Studio 2019:

The project doesn't know how to run the profile IIS Express.

Solution: I updated Visual Studio 2019 to the latest version

Tools -> Get tools and features

Everything worked fine again!

Installed version: Microsoft Visual Studio Community 2019 Versão 16.6.5