No owin.Environment item was found in the context - only on server

Question

I\'m getting this error: No owin.Environment item was found in the context

I\'ve seen a zillion posts telling me that I need &

Answer 1

Bah! The server needed to be rebooted. I wasn't prompted to, so I figured I didn't need to. I did. Have I learned nothing from The IT Crowd!? ;)

Answer 2

Do you have a OWIN server loaded into you app? Microsoft.Owin.Host.SystemWeb is the most common (right now):

http://www.nuget.org/packages/Microsoft.Owin.Host.SystemWeb/