Validation of viewstate MAC failed - VS 2011 Beta

Question

Hi All,

I faced this issue in VS 2011 Beta:

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

It's in my laptop (there's no Web Farm configuration). I've set this in my web.config (I'll need it in LIVE Web Farms):

    <machineKey validationKey="..." 
                decryptionKey="..." 
                validation="HMACSHA512" 
                decryption="AES"/>

For security reason I don't want to turn the enableViewStateMAC property off.

Is it because of VS 2011 Beta or I missed something?!

Thanks,

LM

Answer 1

lazymocking, it is a asp.net issue, i think you should post it to http://www.asp.net/ forum , there is more related expert in this forum, you will get a better reply.