Getting started lab - Host will not build

[toreerstad]

Hi, I have followed the instructions in the lab, but I get an exception from the host = WebHostBuilder()....Build() call in Main.

{"Method 'Log' in type 'Microsoft.AspNet.Server.Kestrel.KestrelTrace' from assembly 'Microsoft.AspNet.Server.Kestrel, Version=1.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60' does not have an implementation.":"Microsoft.AspNet.Server.Kestrel.KestrelTrace"}

Am I doing something wrong?