I previously had 3.3.0 of XML installed. Tried to upgrade to 4.3.3 and get the following error at the very end of the page for the install module action:

ExceptionSystem.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Common.Utilities.Config.AddCodeSubDirectory(String name) at DotNetNuke.Modules.Admin.ResourceInstaller.PaDnnInstallerBase.CreateModuleFile(PaFile File, PaFolder Folder) at DotNetNuke.Modules.Admin.ResourceInstaller.PaDnnInstallerBase.CreateFiles(PaFolder Folder) at DotNetNuke.Modules.Admin.ResourceInstaller.PaDnnInstallerBase.Install(PaFolderCollection folders) at DotNetNuke.Modules.Admin.ResourceInstaller.PaInstaller.Install()

After I press return, the older version of XML was listed. So I did an uninstall of that, which seemed to go OK. Then tried to install latest version and got above error. XML is now not listed in the installed modules list, and the XML folder is present in DesktopModules. I've tried removing this and trying again, but same error. There is no XML fiolder in App_Code and no new line in web.config.

Hi, any update on this? I tried again today to install latest version, just to see, and had the following error(s).

Info Executing 03.03.02.SqlDataProvider StartJob Start Sql execution: 03.03.02.SqlDataProvider file Failure SQL Execution resulted in following Exceptions: System.Data.SqlClient.SqlException: Column names in each table must be unique. Column name 'ValueIsRequired' in table 'dbo.Xml_Parameter' is specified more than once. at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async) at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at DotNetNuke.Data.SqlDataProvider.ExecuteADOScript(String SQL) at DotNetNuke.Data.SqlDataProvider.ExecuteScript(String Script, Boolean UseTransactions) /***| Tables |*************************************************************************************/ ALTER TABLE dbo.[Xml_Parameter] ADD ValueIsRequired bit NOT NULL DEFAULT 0 EndJob End Sql execution: 03.03.02.SqlDataProvider file   Info Executing 04.03.02.SqlDataProvider StartJob Start Sql execution: 04.03.02.SqlDataProvider file EndJob End Sql execution: 04.03.02.SqlDataProvider file   EndJob Finished Sql execution   StartJob Creating files Info Created C:\Inetpub\dnn\DesktopModules\XML\App_LocalResources\EditXml.ascx.resx Info Created C:\Inetpub\dnn\DesktopModules\XML\App_LocalResources\XmlModule.ascx.resx Info Created C:\Inetpub\dnn\DesktopModules\XML\Parameters\ParameterEditor.ascx Info Created C:\Inetpub\dnn\DesktopModules\XML\Parameters\ParameterEditor.ascx.vb Info Created C:\Inetpub\dnn\DesktopModules\XML\Providers\DataProviders\SqlDataProvider\03.03.00.SqlDataProvider Info Created C:\Inetpub\dnn\DesktopModules\XML\Providers\DataProviders\SqlDataProvider\03.03.02.SqlDataProvider Info Created C:\Inetpub\dnn\DesktopModules\XML\Providers\DataProviders\SqlDataProvider\04.03.02.SqlDataProvider Info Created C:\Inetpub\dnn\DesktopModules\XML\03.03.02.txt Info Created C:\Inetpub\dnn\DesktopModules\XML\04.03.02.txt Info Created C:\Inetpub\dnn\DesktopModules\XML\download.ashx Info Created C:\Inetpub\dnn\DesktopModules\XML\EditXml.ascx Info Created C:\Inetpub\dnn\DesktopModules\XML\EditXml.ascx.vb Info Created C:\Inetpub\dnn\DesktopModules\XML\Uninstall.SqlDataProvider Info Created C:\Inetpub\dnn\DesktopModules\XML\XmlModule.ascx Info Created C:\Inetpub\dnn\DesktopModules\XML\XmlModule.ascx.vb Failure ExceptionSystem.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Common.Utilities.Config.AddCodeSubDirectory(String name) at DotNetNuke.Modules.Admin.ResourceInstaller.PaDnnInstallerBase.CreateModuleFile(PaFile File, PaFolder Folder) at DotNetNuke.Modules.Admin.ResourceInstaller.PaDnnInstallerBase.CreateFiles(PaFolder Folder) at DotNetNuke.Modules.Admin.ResourceInstaller.PaDnnInstallerBase.Install(PaFolderCollection folders) at DotNetNuke.Modules.Admin.ResourceInstaller.PaInstaller.Install()

Please check your web.config. You will find an unneeded and unwanted NameSpace declaration:
<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
You will need to change it to:
<configuration>

Aftwerwards the installation will run. We are ging to address this really rare issue inside the DotNetNuke core. This issue is not special to the xml module, every 4.x WSP module can not be installed with the present namespace.

You will find more information about the source of thet issue inside a blog of Scott Guthrie:
http://weblogs.asp.net/scottgu/archive/2005/12/02/432077.aspx

Thank you,

Stefan Cullmann - stefan.cullmann [at] dotnetnuke.com

forms & Lists (UDT5.0) will be the next major release of the User Defined Table project.
A first Preview is available, though it requires DotnetNuke 5 (Beta 5).