Problems with System.​Web.​Extensions

I am a Visual Studio 2008 user, and I recently began working on a project involving System.Web.Extensions.  When I try to test the project, i get an error which reads:

Error 1 Could not load file or assembly 'System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified. C:\Documents and Settings\Dan\Desktop\New Project\Web\Local700\web.config 35 

I have added System.Web.Extensions to my references, and in fact the version in my references is 1.0.61025.0, which is the one the error says is missing.  Also, I had the 3.5 version listed in my references, but I removed it, fearing that the error might have been some sort of conflict.  Does anyone know what might be missing?

Open up the Solution Explorer and expand the References tab. You should delete System.Web.Extentions and then re-add the file via Add Reference and it'll be in the .NET tab.

Did VS2008 add that reference?
(Curious...)

It should have looked like this: System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35

wisemx said:

Did VS2008 add that reference?
(Curious...)

It should have looked like this: System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35

Well visual studio added the reference, but it had two version of the system.web.extensions.  One was the 3.5 and the other was the 1.0.61025.0.  I removed the 3.5 since the developers i am collaborating with are using VS2005.  I am currently installing service pack 1 for my 2005 install to see if that makes a difference.  (According to the AJAX prereqs this is necessary.)

danzaharia said:

wisemx said:

*snip*

Well visual studio added the reference, but it had two version of the system.web.extensions.  One was the 3.5 and the other was the 1.0.61025.0.  I removed the 3.5 since the developers i am collaborating with are using VS2005.  I am currently installing service pack 1 for my 2005 install to see if that makes a difference.  (According to the AJAX prereqs this is necessary.)

Nah that changed nothng