We recently encountered the following error message when selecting Manage Content and Structure from the Site Actions menu "Unknown Error " Here's what I see in the log: Timestamp Process TID Area Category EventID Level Message Correlation 10/19/2011 10:42:39.07 OWSTIMER.EXE (0x073C) 0x0E08 SharePoint Portal Server SSO 8inc Medium In SSOService::Synch(), sso database conn string: 10/19/2011 10:43:13.84 w3wp.exe (0x08C8) 0x0924 SharePoint Portal Server Runtime 8gp7 Medium Topology cache updated. (AppDomain: /LM/W3SVC/2108302016/ROOT-1-129634788160056806) 10/19/2011 10:43:25.75 w3wp.exe (0x08C8) 0x0924 CMS Site Management 6oz4 Medium SmtPerf: SmTreeView.OnInit - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.0156251 10/19/2011 10:43:25.75 w3wp.exe (0x08C8) 0x0924 CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.OnInit - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00 10/19/2011 10:43:25.75 w3wp.exe (0x08C8) 0x0924 CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.OnInit - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00 10/19/2011 10:43:25.75 w3wp.exe (0x08C8) 0x0924 CMS Site Management 6oz4 Medium SmtPerf: SmtMainPage.OnInitComplete - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.0312502 10/19/2011 10:43:25.79 w3wp.exe (0x08C8) 0x0924 CMS Site Management 6oz4 Medium SmtPerf: SmTreeView.OnSelectedNodeChanged - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.0625004 10/19/2011 10:43:25.79 w3wp.exe (0x08C8) 0x0924 CMS Site Management 6oz4 Medium SmtPerf: SmTreeView.OnLoad - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.0625004 10/19/2011 10:43:25.79 w3wp.exe (0x08C8) 0x0924 CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.OnLoad - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.0468753 10/19/2011 10:43:25.79 w3wp.exe (0x08C8) 0x0924 CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.OnLoad - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.0468753 10/19/2011 10:43:25.79 w3wp.exe (0x08C8) 0x0924 CMS Site Management 8y3h Medium SMObjectList.Handle_LoadCompleteEvent - About to configure with Purpose='Structure' and State='SmtContainerState' 10/19/2011 10:43:25.79 w3wp.exe (0x08C8) 0x0924 CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.Handle_LoadCompleteEvent - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.0468753 10/19/2011 10:43:25.79 w3wp.exe (0x08C8) 0x0924 CMS Site Management 8y3h Medium SMObjectList.Handle_LoadCompleteEvent - About to configure with Purpose='ViewRelated' and State='SmtViewRelatedState' 10/19/2011 10:43:25.79 w3wp.exe (0x08C8) 0x0924 CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.Handle_LoadCompleteEvent - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.0468753 10/19/2011 10:43:25.79 w3wp.exe (0x08C8) 0x0924 CMS Site Management 6oz4 Medium SmtPerf: SmtMainPage.OnLoadComplete - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.0781255 10/19/2011 10:43:25.79 w3wp.exe (0x08C8) 0x0924 CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.OnPreRender(SHAREPOINT\system) - Elapsed time= 00:00:00.0468753 10/19/2011 10:43:25.81 w3wp.exe (0x08C8) 0x0924 CMS Site Management 6oz4 Medium SmtPerf: SMDataSource.PopulateContainerDataSet(SHAREPOINT\system) - Elapsed time= 00:00:00.0156251 10/19/2011 10:43:25.81 w3wp.exe (0x08C8) 0x0924 CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.OnUnload(SHAREPOINT\system) - Elapsed time= 00:00:00.0625004 10/19/2011 10:43:25.81 w3wp.exe (0x08C8) 0x0924 CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.OnUnload(SHAREPOINT\system) - Elapsed time= 00:00:00.0625004 10/19/2011 10:43:25.81 w3wp.exe (0x08C8) 0x0924 CMS Site Management 6oz4 Medium SmtPerf: SmtMainPage.OnUnLoad - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.0937506 10/19/2011 10:43:25.81 w3wp.exe (0x08C8) 0x0924 Windows SharePoint Services General 8dzz High Exception Type: System.OverflowException Exception Message: Arithmetic operation resulted in an overflow. Any help would be greatly appreciated. Best regards

Update the web.config file to get more information about the error - <SafeMode ... CallStack="false" ...> and change it to CallStack="true" Set <customErrors mode="On" /> to mode="Off" Set <compilation batch="false" debug="false"> to <compilation batch="true" debug="true"> - Now you will get more information on the page about the error --Cheers

Hi, It is difficult to tell you the exact problem for this error. Here is one link and poster was having same problem. you can check it in your case as well. http://blog.ithinksharepoint.com/2010/07/27/manage-content-and-structure-an-unknown-error-occured/ Also check the event viewer if you get some more information form there. make below changes in your web application web.config file 1. Open up your sites web.config, and make the standard custom errors edit. You want it to be < customerrors mode="Off"/> 2. Then, search for the CallStack="false" and change it to CallStack="true", you should find this in the "<safemode>" node. Let us know if you find some thing thereCheers, Hemendra-MCTS "Yesterday is just a memory,Tomorrow we may never see"

Thanks the log error is now: Arithmetic operation resulted in an overflow. at Microsoft.SharePoint.Publishing.Internal.WebControls.ObjectSerializer.Release() at Microsoft.SharePoint.Publishing.Internal.WebControls.SMContainerData.LoadChildLists(DataTable table) at Microsoft.SharePoint.Publishing.Internal.WebControls.SMContainerData.Fill(DataSet dataSet) at Microsoft.SharePoint.Publishing.Internal.WebControls.SMDataSource.PopulateContainerDataSet() at Microsoft.SharePoint.Publishing.Internal.WebControls.SMContainerDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) at System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) at System.Web.UI.WebControls.DataBoundControl.PerformSelect() at System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() at System.Web.UI.WebControls.GridView.OnPreRender(EventArgs e) at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) Any idea??

And in the log file , i found the same thing: 10/19/2011 12:14:05.52 OWSTIMER.EXE (0x073C) 0x0320 Windows SharePoint Services General 0 Medium Entering MRU trim routine. 10/19/2011 12:14:05.52 OWSTIMER.EXE (0x073C) 0x0320 Windows SharePoint Services General 0 Medium Initial table size: 250058 in 63 entries 10/19/2011 12:14:05.52 OWSTIMER.EXE (0x073C) 0x0320 Windows SharePoint Services General 0 Medium Final table size: 250058 in 63 entries 10/19/2011 12:14:05.52 OWSTIMER.EXE (0x073C) 0x0320 Windows SharePoint Services General 0 Medium Exiting MRU trim routine. 10/19/2011 12:14:07.54 w3wp.exe (0x0B38) 0x13BC CMS Site Management 6oz4 Medium SmtPerf: SmTreeView.OnInit - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.1406268 10/19/2011 12:14:07.58 w3wp.exe (0x0B38) 0x13BC CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.OnInit - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.1718772 10/19/2011 12:14:07.60 w3wp.exe (0x0B38) 0x13BC CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.OnInit - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.1875024 10/19/2011 12:14:07.61 w3wp.exe (0x0B38) 0x13BC CMS Site Management 6oz4 Medium SmtPerf: SmtMainPage.OnInitComplete - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.2812536 10/19/2011 12:14:08.05 w3wp.exe (0x0B38) 0x13BC CMS Site Management 6oz4 Medium SmtPerf: SmTreeView.OnSelectedNodeChanged - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.6718836 10/19/2011 12:14:08.05 w3wp.exe (0x0B38) 0x13BC CMS Site Management 6oz4 Medium SmtPerf: SmTreeView.OnLoad - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.6718836 10/19/2011 12:14:08.07 w3wp.exe (0x0B38) 0x13BC CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.OnLoad - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.6562584 10/19/2011 12:14:08.07 w3wp.exe (0x0B38) 0x13BC CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.OnLoad - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.6562584 10/19/2011 12:14:08.10 w3wp.exe (0x0B38) 0x13BC CMS Site Management 8y3h Medium SMObjectList.Handle_LoadCompleteEvent - About to configure with Purpose='Structure' and State='SmtContainerState' 10/19/2011 12:14:08.29 w3wp.exe (0x0B38) 0x13BC CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.Handle_LoadCompleteEvent - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.8750112 10/19/2011 12:14:08.29 w3wp.exe (0x0B38) 0x13BC CMS Site Management 8y3h Medium SMObjectList.Handle_LoadCompleteEvent - About to configure with Purpose='ViewRelated' and State='SmtViewRelatedState' 10/19/2011 12:14:08.29 w3wp.exe (0x0B38) 0x13BC CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.Handle_LoadCompleteEvent - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.8750112 10/19/2011 12:14:08.30 w3wp.exe (0x0B38) 0x13BC CMS Site Management 6oz4 Medium SmtPerf: SmtMainPage.OnLoadComplete - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:00.9687624 10/19/2011 12:14:08.30 w3wp.exe (0x0B38) 0x13BC CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.OnPreRender(SHAREPOINT\system) - Elapsed time= 00:00:00.8906364 10/19/2011 12:14:08.35 w3wp.exe (0x0B38) 0x13BC CMS Site Management 6oz4 Medium SmtPerf: SMDataSource.PopulateContainerDataSet(SHAREPOINT\system) - Elapsed time= 00:00:00.0312504 10/19/2011 12:14:08.36 w3wp.exe (0x0B38) 0x13BC CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.OnUnload(SHAREPOINT\system) - Elapsed time= 00:00:00.9531372 10/19/2011 12:14:08.36 w3wp.exe (0x0B38) 0x13BC CMS Site Management 6oz4 Medium SmtPerf: SMObjectList.OnUnload(SHAREPOINT\system) - Elapsed time= 00:00:00.9531372 10/19/2011 12:14:08.36 w3wp.exe (0x0B38) 0x13BC CMS Site Management 6oz4 Medium SmtPerf: SmtMainPage.OnUnLoad - accumulated(SHAREPOINT\system) - Elapsed time= 00:00:01.0312632 10/19/2011 12:14:27.96 w3wp.exe (0x0B38) 0x13BC SharePoint Portal Server Runtime 8gp7 Medium Topology cache updated. (AppDomain: /LM/W3SVC/2108302016/ROOT-1-129634927960407077) 10/19/2011 12:14:39.79 OWSTIMER.EXE (0x073C) 0x0D30 SharePoint Portal Server SSO 8inc Medium In SSOService::Synch(), sso database conn string: 10/19/2011 12:15:27.96 w3wp.exe (0x0B38) 0x08E8 SharePoint Portal Server Runtime 8gp7 Medium Topology cache updated. (AppDomain: /LM/W3SVC/2108302016/ROOT-1-129634927960407077) 10/19/2011 12:15:39.79 OWSTIMER.EXE (0x073C) 0x0A10 SharePoint Portal Server SSO 8inc Medium In SSOService::Synch(), sso database conn string:

This might happen when there is duplicate list or library name in the site. Go to view all site contents page and check. Also check each library and list if any one is corrupted. Also refer to the following post http://social.technet.microsoft.com/Forums/en/sharepointadmin/thread/9e5f2da3-4dd4-413c-a402-4150eaa1cf0f--Cheers

This might happen when there is duplicate list or library name in the site. Go to view all site contents page and check. Also check each library and list if any one is corrupted. Also refer to the following post http://social.technet.microsoft.com/Forums/en/sharepointadmin/thread/9e5f2da3-4dd4-413c-a402-4150eaa1cf0f--Cheers