Hello Everyone,
I have created a new mail form for my ASP.Net MVC application and I stumble upon an error. When a user does not fill in all required fields, a check in my ContactController puts the user back to the form with the message to fill in all the fields, BUT, before this is done, I get an error in my Site.Master that says the following:
"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."
I have searched for a solution and found many, however, these doesn't work for me. Can someone help me with this error?
Pls let me know if you need some code.
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