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From: stevescottwork on 15 Apr 2010 22:48
This happens on Dev and Live...no idea why...

I saw another post with a similar error on the asp.net forums with no
answers, however it was identical except for the Telerik part of the stack

Server Error in '/' Application.
Value cannot be null.
Parameter name: key
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.ArgumentNullException: Value cannot be null.
Parameter name: key

Source Error:

An unhandled exception was generated during the execution of the current web
request. Information regarding the origin and location of the exception can
be identified using the exception stack trace below.

Stack Trace:

[ArgumentNullException: Value cannot be null.
Parameter name: key]
System.Web.Caching.CacheKey..ctor(String key, Boolean isPublic) +11232998
System.Web.Caching.CacheInternal.DoGet(Boolean isPublic, String key,
CacheGetOptions getOptions) +62

Telerik.Cms.Web.UI.SpamProtection.Captcha.CaptchaProtector.GetCachedCaptcha(String guid) +27

Telerik.Cms.Web.UI.SpamProtection.Captcha.CaptchaProtector.ValidateCaptcha(String userEntry) +24
Telerik.Web.UI.SpamProtection.SpamProtector.Validate() +132
Telerik.Cms.Web.CmsPageBase.Validate(String validationGroup) +194
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument)
+105
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler
sourceControl, String eventArgument) +29
System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2981

From: Gregory A. Beamer on 16 Apr 2010 00:57


"stevescottwork" <stevescottwork(a)discussions.microsoft.com> wrote in message
news:FB97971D-8FAE-492E-BA4E-475847464033(a)microsoft.com...
> This happens on Dev and Live...no idea why...
>
> I saw another post with a similar error on the asp.net forums with no
> answers, however it was identical except for the Telerik part of the stack
>
> Server Error in '/' Application.
> Value cannot be null.
> Parameter name: key
> 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.ArgumentNullException: Value cannot be null.
> Parameter name: key

You are using caching, I assume, as that is where the error is in the stack
trace. Perhaps using a vary by X mode? And you are not supplying a default
X. That is a wild guess, as I don't see any of your page or code, but I can
definitely tell a null key value is being placed into cache.

--
Peace and Grace,
Greg

Twitter: @gbworld
Blog: http://gregorybeamer.spaces.live.com

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