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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...Object reference not set to an instance of an object.Object reference not set to an instance of an object.
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3/17/2006 3:16 PM
 
Toon Netto

Joined: 5/1/2003
Posts: 10

Dunno whats going on..... I do run a DNN3 site for ages..... without any big problems.

Right now, I installed in the same IIS (Win2K Server) a second website running DNN 4.0.2
Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42

It all seems running fine, but some strange error is occuring now....... I get an error verry often, but hitting "back" and reclick again, makes it run without any trouble most of the time.

Some error's I get:

[NullReferenceException: Object reference not set to an instance of an object.]
   DotNetNuke.Services.Localization.Localization.GetResource(String ResourceFileRoot, PortalSettings objPortalSettings, String strLanguage) +264
   DotNetNuke.Services.Localization.Localization.GetString(String name, String ResourceFileRoot, PortalSettings objPortalSettings, String strLanguage) +26
   DotNetNuke.Services.Localization.Localization.GetString(String name, String ResourceFileRoot) +79
   DotNetNuke.Services.Localization.Localization.LocalizeTabStripDetails(ArrayList arrTabStripDetails) +115
   DotNetNuke.Services.Localization.Localization.LocalizePortalSettings() +68
   DotNetNuke.Framework.PageBase.OnInit(EventArgs e) +99
   System.Web.UI.Control.InitRecursive(Control namingContainer) +321
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +692

[PageLoadException: Object reference not set to an instance of an object.]
   DotNetNuke.Services.Exceptions.Exceptions.ProcessPageLoadException(Exception exc, String URL) +351
   DotNetNuke.Framework.PageBase.Page_Error(Object Source, EventArgs e) +377
   System.Web.UI.TemplateControl.OnError(EventArgs e) +105
   System.Web.UI.Page.HandleError(Exception e) +73
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6944
   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.default_aspx.ProcessRequest(HttpContext context) +4
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +154
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64

Please can someone help me finding this problem ????
 
New Post
3/22/2006 2:58 AM
 
Toon Netto

Joined: 5/1/2003
Posts: 10

Please help, I'm stil having problems :

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.]
   DotNetNuke.Entities.Users.UserOnlineController.TrackAuthenticatedUser(HttpContext context) +196
   DotNetNuke.Entities.Users.UserOnlineController.TrackUsers() +95
   DotNetNuke.HttpModules.UsersOnlineModule.OnAuthorizeRequest(Object s, EventArgs e) +131
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +92
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64

Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42

 
New Post
3/22/2006 11:40 AM
 
Toon Netto

Joined: 5/1/2003
Posts: 10

It keeps going on, with all different situations.... no consistend behavoure, just random situations:

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:

The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL:

1. Add a "Debug=true" directive at the top of the file that generated the error. Example:

  <%@ Page Language="C#" Debug="true" %>

or:

2) Add the following section to the configuration file of your application:

<configuration>
   <system.web>
       <compilation debug="true"/>
   </system.web>
</configuration>

Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode.

Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario.

Stack Trace: 

[NullReferenceException: Object reference not set to an instance of an object.]
   DotNetNuke.Services.Localization.Localization.GetResource(String ResourceFileRoot, PortalSettings objPortalSettings, String strLanguage) +264
   DotNetNuke.Services.Localization.Localization.GetString(String name, String ResourceFileRoot, PortalSettings objPortalSettings, String strLanguage) +26
   DotNetNuke.Services.Localization.Localization.GetString(String name) +75
   DotNetNuke.Services.Exceptions.ErrorContainer..ctor(PortalSettings _PortalSettings, String strError, Exception exc) +59
   DotNetNuke.UI.Skins.Skin.InjectModule(Control objPane, ModuleInfo objModule, PortalSettings PortalSettings) +10128
   DotNetNuke.UI.Skins.Skin.Page_Init(Object sender, EventArgs e) +3469
   System.Web.UI.Control.OnInit(EventArgs e) +2069692
   System.Web.UI.UserControl.OnInit(EventArgs e) +96
   System.Web.UI.Control.InitRecursive(Control namingContainer) +321
   System.Web.UI.Control.AddedControl(Control control, Int32 index) +2065327
   System.Web.UI.ControlCollection.Add(Control child) +146
   DotNetNuke.Framework.DefaultPage.Page_Init(Object sender, EventArgs e) +1218
   System.Web.UI.Control.OnInit(EventArgs e) +2069692
   System.Web.UI.Page.OnInit(EventArgs e) +9
   DotNetNuke.Framework.PageBase.OnInit(EventArgs e) +108
   System.Web.UI.Control.InitRecursive(Control namingContainer) +321
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +692

[PageLoadException: Object reference not set to an instance of an object.]
   DotNetNuke.Services.Exceptions.Exceptions.ProcessPageLoadException(Exception exc, String URL) +352
   DotNetNuke.Framework.PageBase.Page_Error(Object Source, EventArgs e) +377
   System.Web.UI.TemplateControl.OnError(EventArgs e) +105
   System.Web.UI.Page.HandleError(Exception e) +73
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6944
   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.default_aspx.ProcessRequest(HttpContext context) +4
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +154
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64

Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42

 
New Post
3/23/2006 2:45 PM
 
Toon Netto

Joined: 5/1/2003
Posts: 10
 

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:

The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL:

1. Add a "Debug=true" directive at the top of the file that generated the error. Example:

  <%@ Page Language="C#" Debug="true" %>

or:

2) Add the following section to the configuration file of your application:

<configuration>
   <system.web>
       <compilation debug="true"/>
   </system.web>
</configuration>

Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode.

Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario.

Stack Trace: 

[NullReferenceException: Object reference not set to an instance of an object.]
   DotNetNuke.UI.Skins.Controls.Search.cmdSearch_Click(Object sender, EventArgs e) +110
   System.Web.UI.WebControls.LinkButton.OnClick(EventArgs e) +105
   System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) +107
   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) +174
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5102

[PageLoadException: Object reference not set to an instance of an object.]
   DotNetNuke.Services.Exceptions.Exceptions.ProcessPageLoadException(Exception exc, String URL) +353
   DotNetNuke.Framework.PageBase.Page_Error(Object Source, EventArgs e) +375
   System.Web.UI.TemplateControl.OnError(EventArgs e) +105
   System.Web.UI.Page.HandleError(Exception e) +73
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6944
   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.default_aspx.ProcessRequest(HttpContext context) +4
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +154
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64

Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42
 
New Post
3/24/2006 5:30 PM
 
cathal connolly


cathal connolly's Avatar

www.cathal.co.uk
Joined: 4/9/2003
Posts: 9676

"Object reference not set to an instance of an object" errors can be difficult to diagnose. In general they mean a file is missing, or a database query expects to read a value back, doesn't and a variable accidentally contains a null. In this case, the issues seem to involve the skin and localised text areas - please check that you've got all the necessary *.resx files (perhaps copy them across again just in case), and check that the skin you're using is valid (examine the source , and consider changing to a default skin to see if it clears up the issue(s))

Cathal

Buy the new Professional DNN7: Open Source .NET CMS Platform book Amazon US
 
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