Chapt 40: pg1248-1249

smiller781 · December 23rd, 2016, 10:58 AM

When I run the example I get this in the browser:

Unable to resolve service for type 'Microsoft.AspNetCore.DataProtection.IDataProtecti onProvider' while attempting to activate 'Microsoft.AspNetCore.Session.SessionMiddleware'.

I found the fix here:
https://forums.asp.net/t/2097262.asp...on+not+working

1) Add in your project.json as below
"Microsoft.AspNetCore.Session": "1.0.0",
"Microsoft.Extensions.Caching.Memory": "1.0.0",

2)In your ConfigureServices method of Startup.cs
services.AddMemoryCache();
services.AddSession()

-----------------------------------

Also, after I get to "Configure ASP.Net" on p 1249, and add the appsettings.json and the StartUp constructor, I start getting this error:
"Unable to resolve service for type 'Microsoft.Extensions.Caching.Distributed.IDistrib utedCache' while attempting to activate 'Microsoft.AspNetCore.Session.DistributedSessionSt ore'."

I found a resolution at:
https://docs.microsoft.com/en-us/asp...tals/app-state
services.AddMemoryCache();
from step 2 above
with
services.AddDistributedMemoryCache();

I'll have to read more about State now;.
Looks like a lot of changes:
No more Application replaced with Cache, and so on.

Just replace:

ChristianNagel · January 3rd, 2017, 06:49 AM

Thanks for the note. The code download was already updated, but I missed adding the information to the book updates.

Updated information added here:
https://github.com/ProfessionalCShar...BookUpdates.md

I'm also sending an update for the Wrox errata list.

Thanks