Ambiguous reference issue (Microsoft.AspNet.Identity & Microsoft.AspNet.Identity.Core)

Question

I'm building an AngularJS Single-Page App using the latest VS2015 Community and ASP.NET 5 etc...

The problem I'm now having while trying to implement an Authentication is that I need to use these two Namespaces:

Microsoft.AspNet.Identity //Version 3.0.0-beta4
Microsoft.AspNet.Identity.Owin //Version 2.2.1

but since Microsoft.AspNet.Identity.Owin has a dependency with

Microsoft.AspNet.Identity.Core

I keep getting ambiguous reference issues, for example for UserManager which exists in both Microsoft.AspNet.Identity and Microsoft.AspNet.Identity.Core .

Has anyone else dealt with this before? Is it a version incompatibility issue or just the not complete Owin ASP.NET 5 implementation?

Kévin Chalet · Accepted Answer · 2015-07-29 13:01:22Z

8

The Microsoft.AspNet.Identity.Owin package is part of ASP.NET Identity 2, not the newest version shipped with ASP.NET 5. Trying to reference it will download ASP.NET Identity 2 and cause the weird error you're experiencing.

Just reference Microsoft.AspNet.Identity and it should work.

answered Jul 29, 2015 at 13:01

Kévin Chalet

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6 Comments

jimmious Over a year ago

Understood, however without reference to it, it seems that I can't use methods that I need, for example AppBuilderExtensions.CreatePerOwinContext (cannot resolve symbol error)

Kévin Chalet Over a year ago

These extensions were specially made for OWIN/Katana to make managers' lifetime management a bit easier. With dependency injection directly integrated to ASP.NET 5, they are no longer necessary (and won't work with ASP.NET Identity 3 anyway).

jimmious Over a year ago

Oh I see.. Hm although you answered my questions, you created many new ones hehe Is there some reliable source of information for Identity 3 so that I can adapt to it? I was following some quides and tutorials which are obviously kind of obsolete in that way.. (Thank you by the way!)

Kévin Chalet Over a year ago

You're welcome! The IdentitySample.Mvc sample you can find on github.com/aspnet/Identity is probably the best resource available right now: github.com/aspnet/Identity/tree/dev/samples/IdentitySample.Mvc. If you're looking for something more complete, don't miss the MusicStore sample: github.com/aspnet/MusicStore/tree/master/src/MusicStore

jimmious Over a year ago

Thanks again! I will give these a go. By the way the guide I was mostly following was this one here: bitoftech.net/2015/01/21/… (Just so that I don't talk out of context)

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