ASP.NET MVC (Form login): Validation of viewstate MAC failed

Question

Hey

Im trying to use ASP.NET login controls, in a ASP.NET MVC project and i get this error, when i click the submit button:

Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.

I have searched google and tried alot of solution, which worked for others including: - Install .NET 3.5 SP1 - - Check if there is only 1 on the page

Unfortunaly notthing works. Do you guys have any other suggentions?

/Thanks

Answer 1

Create a new MVC Webapplication and take a look at how FormsAuthentication is done there. You can't use the Login Controls.