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HomeHomeGetting StartedGetting StartedInstalling DNN ...Installing DNN ...File Manager ExceptionFile Manager Exception
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10/17/2006 2:48 PM
 
Muhammad M Mosa Soliman

mosessar.spaces.live.com/members/mosessaur/
Joined: 1/14/2006
Posts: 1

I have upgraded my DNN from 4.3.4 to 4.3.5

When I tried to open the file manager I got the following error

An error has occurred.
DotNetNuke.Services.Exceptions.PageLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Security.Permissions.Controls.FolderPermissionsGrid.SaveViewState() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Page.SaveAllState() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---

and in logviewer I got the an exception entry for Module Load Exception with:

ModuleControlSource: Admin/Files/FileManager.ascx
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: be13ec35-0a19-4e8a-a22e-1c8e0fba5644
InnerException: Object reference not set to an instance of an object.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: DotNetNuke.Modules.Admin.FileSystem.FileManager.GetFilesByFolder
StackTrace:
Message: DotNetNuke.Services.Exceptions.ModuleLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Modules.Admin.FileSystem.FileManager.GetFilesByFolder(String strFolderName) at DotNetNuke.Modules.Admin.FileSystem.FileManager.BindFileList() at DotNetNuke.Modules.Admin.FileSystem.FileManager.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace ---

 
 
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10/24/2006 1:05 PM
 
Brian Barsalou

Joined: 7/13/2005
Posts: 51

That's exactly the problem I was getting when I did an upgrade.

If you had deleted files or folders thru FTP, this will cause the problem. The reference info stays in the DB tables (Folders and Files) even though the specific folders or files were removed. These 'orphans' cause the above problem.

Will Ballard covers the issue with some thoughts. Will also mentions Dave Buckner's TFT tool that finds orphan files in your DB. Go to Dave's site and register for access to this free tool.

To fix orphan folders, just compare the listings in your DB _Folders table with the folders in the right Portal folder, probably Portal\0. You can do the same for files in the _Files table or use Dave's tool.

Regards
Brian
www.tabsinc.net
 
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