The state information is invalid for this page and might be corrupted

After logging into my application I get the following error:


The state information is invalid for this page and might be corrupted.
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: The state information is invalid for this page and might be corrupted.

Stack Trace:


[ArgumentException: The serialized data is invalid.]
System.Web.UI.ObjectStateFormatter.Deserialize(Stream inputStream) +205
System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +337
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() +147

[ViewStateException: Invalid viewstate.
Client IP: 72.144.183.87
Port: 62373
Referer: http://xlinkconcepts.com/Login.aspx
Path: /Login.aspx
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)
ViewState: bzWgeqtEST6bYMeA85nuAbhX7CPtQwyxyrY9vp4uQD+NBraybw4C+I61uz4pOrNzMepsZZ63tSm9Dsw3+TuG9T/DZnpPDtVa66Lztu1DULH3ZO1ZELGGuJofTbymZoszdNpM5Q==]

[HttpException (0x80004005): The state information is invalid for this page and might be corrupted.]
System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError) +198
System.Web.UI.ViewStateException.ThrowViewStateError(Exception inner, String persistedState) +14
System.Web.UI.HiddenFieldPageStatePersister.Load() +251
System.Web.UI.Page.LoadPageStateFromPersistenceMedium() +106
System.Web.UI.Page.LoadAllState() +43
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +8431
System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +253
System.Web.UI.Page.ProcessRequest() +78
System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +21
System.Web.UI.Page.ProcessRequest(HttpContext context) +49
ASP.login_aspx.ProcessRequest(HttpContext context) in App_Web_fjzoi4vq.0.cs:0
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +100
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75




--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1


This works in development environment, IIS 6.

Anonymous Authentication
Forms Authentication

machinekey encryption method SHA1 Decryption Auto
Automatically generate at runtime.

Any ideas?

Thanks.

 

Do you have a URL and instructions on how we can replicate this error on our end?