Visual Studio 2015 can't start IIS Express

Question

When I am trying to run an ASP.Net Core project in Visual Studio 2015, a Microsoft Visual Studio dialog appears \"The project doesn\'t know how to run the profile IIS Expres

Answer 1

This happened to me after a failed update of visual studio 2017 15.9.4 Setup completed with warnings and when I checked the problems saw that .NET core SDK 2.1 installation is failed.

I will try to install it manually. Otherwise currently the only solution I found is to uninstall visual studio and re-install it.

Answer 2

In visual Studio 2017, i fixed this error by doing the following two steps. I went to add or remove a program in windows, and deleted everything ending with ".net". I then reinstalled them in the visual studio installer. Then loading the project again produced a new error, which condiosluzverde provided the solution to here: How Can I Fix the Microsoft Visual Studio Error: "Package Did Not Load Correctly"?

Answer 3

I had the same issue and found a very simple solution for Visual Studio 2017. In Visual Studio 2017 go to Solution Explorer then right click on your project file. In the menu you will see "Set as StartUp Project". If you can select it then select it. Now run your project again.

Answer 4

I had a similar issue but with "MyProjectName" instead of IIS Express. In my case, I was trying to start as a standalone application, so I cleaned the launchSettings.json

I inadvertently changed the "commandName" parameter from "Project" to "MyProjectName" and that caused the popup to show up.

Resetting it back to "Project" solved my issue, silly me