An error occurred attempting to determine the process id of dotnet.exe which is hosting your application.A task was canceled

When I try to startup my project w/ IIS Express I get the error:

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VS 2017

• Project Properties
• Debug
• Launch Browser //http://localhost:5000 or whatever
• Uncheck Enable SSL
• App Url //http://localhost:5000 or whatever. make sure same with Launch Browser url
• Save and Close
• Open launchsettings.Json under Properties (Solution Explorer)
• Make sure old settings is deleted. If not delete it.
• Save and Close.

Hope it helps