JetBrains DotTrace buttons grayed out

Question

I'm trying to profile a .NET C# web application on my local machine. To do so, I've loaded the solution in Visual Studio 2013 and selected dotTrace -> Profile Startup Project from the main Visual Studio menu.

That fires up dotTrace, but when the service starts, I can't use any of the dotTrace buttons, they're all grayed out. See below:

My application is running under IIS Express is at http://localhost:49824. I'm using dotTrace 5.5.2 and Visual Studio 2013. Anyone know why I can't profile my application?

Answer 1

Shutdown IIS express from the task bar before running "Profile Application..." or "Profile Startup Project"