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Not answered Creating newsletter failed - Object reference

Stormy

Posted on Nov 20, 2008 (permalink)

I'm not getting the "usual" newsletter problem that I've read about in other threads. When I create a new newsletter (this is my first one) I enter in the name, from address and click on the "Next: Write Content" button. When that submits, I get the following error:

Server Error in '/' Application.

Object reference not set to an instance of an object.

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.NullReferenceException: Object reference not set to an instance of an object.

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:

[NullReferenceException: Object reference not set to an instance of an object.]   Telerik.Notifications.Newsletters.WebControl.CreateNewsletter.OnWriteContent(ControlPanel cntrlPnlObj) +354   Telerik.Notifications.Newsletters.WebControl.CreateNewsletter.button_Command(Object sender, CommandEventArgs e) +290   System.Web.UI.WebControls.LinkButton.OnCommand(CommandEventArgs e) +105   System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) +132   System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +177   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1746

From my sitefinity.log:

************************************************************************************

ID: 22268483-2c40-4e70-9c68-a9d2dd0b1bcf; Code: 3005; Occurrence: 1; Sequence: 16

------------------------------------------------------------------------------------

Application information:

Machine name: XXXXXXXXXXX

OS Version: Microsoft Windows NT 5.2.3790 Service Pack 2

Product Version: 3.5.1714.2

Application Path: D:\Data\web\Sitefinity35\

Debug: True

Process information:

Process ID: 3908

Process Name: w3wp

Request information:

Request URL: /en/Sitefinity/Admin/Modules.aspx?module=Newsletters

Rewrite URL: http://XXXXXXXXXXX/en/Sitefinity/Admin/Modules.aspx?module=Newsletters

Url Referrer: http://XXXXXXXXXXX/en/Sitefinity/Admin/Modules.aspx?module=Newsletters

Is Authenticated: True

Authentication Type: Forms

User: michaels

User Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/525.19 (KHTML, like Gecko) Chrome/0.3.154.9 Safari/525.19

User Address: 10.4.0.37

Variables:

cmscurrcult: en

Sitefinity.UrlChahged: False

RadControlRandomNumber: 0

AspSessionIDManagerInitializeRequestCalled: True

CmsHttpRequest: /Sitefinity/Admin/Modules.aspx?module=Newsletters

- L0 -------------------------------------------------------------------------------

Exception Type: System.NullReferenceException

Message: Object reference not set to an instance of an object.

Source: Telerik.Notifications

Stack Trace:

at Telerik.Notifications.Newsletters.WebControl.CreateNewsletter.OnWriteContent(ControlPanel cntrlPnlObj)

at Telerik.Notifications.Newsletters.WebControl.CreateNewsletter.button_Command(Object sender, CommandEventArgs e)

at System.Web.UI.WebControls.LinkButton.OnCommand(CommandEventArgs e)

at System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument)

at System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)

at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)

at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)

at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

------------------------------------------------------------------------------------

Any ideas??

Georgi Georgi

Posted on Nov 21, 2008 (permalink)

Hello Michael,

Do you have different membership provider set? This error was typical for Sitefinity 3.5. Upgrading to SP1 will solve the problem.

Greetings,
Georgi
the Telerik team

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Reply

Stormy

Posted on Nov 21, 2008 (permalink)

I do have two membership providers (added Active Direcotry).

After going through the upgrade, I get a new error:

Server Error in '/' Application.

Specified cast is not valid.

Description: Anunhandled exception occurred during the execution of the current webrequest. Please review the stack trace for more information about theerror and where it originated in the code.

Exception Details: System.InvalidCastException: Specified cast is not valid.

Source Error:

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

Stack Trace:

[InvalidCastException: Specified cast is not valid.]   Telerik.Notifications.Newsletters.WebControl.CreateNewsletter.OnWriteContent(ControlPanel cntrlPnlObj) +390   Telerik.Notifications.Newsletters.WebControl.CreateNewsletter.button_Command(Object sender, CommandEventArgs e) +290   System.Web.UI.WebControls.LinkButton.OnCommand(CommandEventArgs e) +105   System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) +132   System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +177   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1746

Strangely, no error is created in the log.

Georgi Georgi

Posted on Nov 25, 2008 (permalink)

Hi Michael,

Please browse to "\[YourProjectName]\Sitefinity\ServiceAssemblies"
Under that folder you will find an assembly file looking like the one below.

"3889AC4AF542BAC3C62ABB154E78FEA8.dll"

Please delete this assembly from your directory, restart your IIS server and try to load Newsletters module again.
Most probably this assembly is left from the version before the upgrade. A new assembly should be generated automatically.

Let us know about the results.

All the best,
Georgi
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.

Reply

Darren

Posted on Mar 7, 2010 (permalink)

I get the same error.
I haven't upgraded but I do use my own providers.

Anyway, deleting that .dll and restarting hasn't fixed it. What are the requirements for this call to succeed so I can check that the providers we're using are not causing problems?

Many thanks
Darren

Reply

Ivan Dimitrov Ivan Dimitrov

Posted on Mar 7, 2010 (permalink)

Hello Darren,

If you use Active Directory where the users are identified by SID you may get this error. Sitefinity uses Guid and the newsletter expects Guid instead of SID.

Sincerely yours,
Ivan Dimitrov
the Telerik team

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Reply

Darren

Posted on Mar 7, 2010 (permalink)

In fact I'm using the YAF provider which stores the UserId as an NVARCHAR(64) which in turn holds a GUID value.
I don't know why an NVARCHAR(64) was chosen, presumably it's to allow a range of databases to be used including any which don't suppose the GUID datatype.

I'm guessing that since the provider shouldn't be causing a problem with the UserId type that this is in fact a problem with a sproc which I could alter to convert between NVARCHAR(64) and a GUID?
If this is the case can you tell me which sproc's need changing to convert types or whether it's something else which can't be modified?

Thanks again.

Reply

Ivan Dimitrov Ivan Dimitrov

Posted on Mar 8, 2010 (permalink)

Hi Darren,

You need to convert SID to GUID or use Guids with AD. You should override the membership provider classes and make a Guid - SID mapping. By default we call GetUser by ProviderUserKey

(Guid)UserManager.Default.GetUser().ProviderUserKey

sample

public override MembershipUser GetUser(object providerUserKey, bool userIsOnline)

    {

        // check if providerUserKey is Guid and get its mapped SID

        return base.GetUser(providerUserKey, userIsOnline);

    }

Best wishes,
Ivan Dimitrov
the Telerik team

Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.

Reply

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Forums

Not answered Creating newsletter failed - Object reference

Server Error in '/' Application.

Object reference not set to an instance of an object.

Server Error in '/' Application.

Specified cast is not valid.