I have installed Website Panel on my Windows Server 64bit.
It has installed correctly, however when I login I get the following error message:
What is this error and why does it occur? How can I solve it
Thanks
It has installed correctly, however when I login I get the following error message:
Code:
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.
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 <machineKey> 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\Framework64\v2.0.50727\Temporary ASP.NET Files\root\0137d8f1\ee2cd65c\App_Web_-0usk33x.0.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) +341
System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +303
[ViewStateException: Invalid viewstate.
Client IP: 81.159.236.18
Port: 62822
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-GB; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8 (.NET CLR 3.5.30729)
ViewState: /wEPDwUJMjExNjc5MzQyD2QWAgIDD2QWAgIBD2QWAmYPZBYEAgEPZBYCZg9kFgICBQ9kFgJmD2QWBgIKDw9kFgIeBXZhbHVlZWQCFg8QZA8WAWYWARAFB0VuZ2xpc2gFBWVuLVVTZxYBZmQCGg8QZA8WAWYWARAFC0VuZXJneSBCbHVlBQdEZWZhdWx0ZxYBZmQCAg9kFgICBQ9kFgJmDxYCHgRUZXh0BQUxLjAuMWQYAQUeX19Db250cm9sc1JlcXVpcmVQb3N0QmFja0tleV9fFgEFHWN0bDAyJGN0bDAxJGN0bDAwJGNoa1JlbWVtYmVyzvgErR7Z3AHJ717JRifS2CqB8AE=
Referer: [URL unfurl="true"]http://87.106.106.242:9001/Default.aspx?pid=Login&ReturnUrl=/Default.aspx[/URL]
Path: /Default.aspx]
[HttpException (0x80004005): 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.]
System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError) +160
System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +4532241
System.Web.UI.Util.DeserializeWithAssert(IStateFormatter formatter, String serializedState) +88
System.Web.UI.HiddenFieldPageStatePersister.Load() +4497345
System.Web.UI.Page.LoadPageStateFromPersistenceMedium() +4454395
System.Web.UI.Page.LoadAllState() +50
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4479040
System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4474336
System.Web.UI.Page.ProcessRequest() +91
System.Web.UI.Page.ProcessRequest(HttpContext context) +319
ASP.default_aspx.ProcessRequest(HttpContext context) in c:\WINDOWS\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files\root\0137d8f1\ee2cd65c\App_Web_-0usk33x.0.cs:0
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +638
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +177
What is this error and why does it occur? How can I solve it
Thanks