using DirectoryServices

Question

I've got a new environment and I'm trying to rebuild web page.

I got an error that

the namespace DirectoryService is missing.

However, I've made the following declarations:

1. Within the .cs file:
   using System.DirectoryServices;

2. Within the Web.config: add assembly="System.DirectoryServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/
   I skip the brackets in front and at the end, due to the fact that the code was not published!

3. And I also add the reference in the project (System.DirectoryServices).

What I recorgnize is that I've got a pick on e.g. System.Data within the references but do not get a pick on System.DirectoryServices.

Any idea?

P.S.: I'm using VS2013

Answer 1

I've found the answer: The GAC was looking for .NET Framework 4.0 and installed is 4.5.

Thanks a lot! Cheers