Server Error in '/' Application.
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.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Web.HttpException: 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. Source Error:
[No relevant source lines]
Source File: c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\7a1fee42\1030fc29\App_Web_0i0bfwh6.10.cs Line: 0 Stack Trace:
[HttpException (0x80004005): Unable to validate data.] System.Web.Configuration.MachineKeySection.GetDecodedData(Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Int32& dataLength) +2549724 System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +214 [ViewStateException: Invalid viewstate. Client IP: 122.169.17.237 Port: 1184 User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; InfoPath.2) ViewState: VI3g4UuoIUMTTTgBCddUZjFLqvV/Jup+tNyUWxwsI0eyZpr6rcweIyToracdQNvaLEl6N8o5lCI5sWTZXy1+g5 PhLAtm4w+xdXj87bbM9sbvj0cmkRo6aD7/W1IXCt22LfiVdlL9Fh71b3evnvnJwnjmJN/fb/DGwYwQErMYpIrK thElJnVL4qgwrDE2DsPVdZVNhhaYPfDSN703CGRmZEtu3rnjAf41kLhljCooxvj/jDo65mBBxel7wzWq+7DT2o LMr5YjJ5zfKwnIcTv8/0jGsgfNh6+WHHIzpYjI0CRz0SGQlV8NgZTNZzD0IxynAI5ZYiNh7OO7nLm95VpTTDWV AbjRiHumnNfyzPQYm59dQ0RW4rwk2sf6hICxbd9YbVNEH8ucvYxBGlqVasDgdtmlQQsr0siBmN8zM/krB5XZ5a hQRJ8PurZuM9iE9RHicoM+FnGCLx4kESoaZY9KazkyCjzYoGBUYntuILQCQEg1VYb7Spn8VWhOE2gdtX3DLI/c RC7dKQ4sruQlkw0/7UEeMNhiH0dm2DzdshJ1td0noQXYjliijeRLgl2cQU5diO7V1VDeE3WYoLyEly5giTNHIn pZF+gVvZE/QJY7d/SPVxawluFrlcZeOcb3qjRLFho9v4w4BJp7mO6bdmGVw0HPhh24E8n1WfjWuecYpLjcXIBj cVHpvRw2R7VhNJNUzqcO7OWvx5BIok1CjlQ/04DOnVJgNuMSGvJNZhw05qnfuNewmRYeQYtzH3P3VYE4l4NWXY zrq33WWtn6Q8UHTJMTnF+5MKHJ+FsQjn1BG6Qhn/jo6DCk6IbPaYX74gTsOruBdCDY50pjFr3ljTIZLMZXkc7h wX5QQF9gnGfQphtSe2Luqd0dFg+SR...] [HttpException (0x80004005): 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.] System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError) +116 System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +251 System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter.Deserialize(String serializedState) +4 System.Web.UI.Util.DeserializeWithAssert(IStateFormatter formatter, String serializedState) +37
System.Web.UI.HiddenFieldPageStatePersister.Load() +220 System.Web.UI.Page.LoadPageStateFromPersistenceMedium() +83 System.Web.UI.Page.LoadAllState() +35 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6953 System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +154 System.Web.UI.Page.ProcessRequest() +86 System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +18 System.Web.UI.Page.ProcessRequest(HttpContext context) +49 ASP.memberprofile_aspx.ProcessRequest(HttpContext context) in c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\7a1fee42\1030fc29\App_Web_0i0bfwh6.10.cs:0 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute( ) +154 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64