Hello,

I regularly find 2 exceptions in my site's log.

How can I figure out what's causing it? Someone experiencing the same problem?

Greetz,

Bruno

14-1-2008 17:10:32   Scheduler Exception       AssemblyVersion: -1; PortalID: -1; PortalName ...

AssemblyVersion: -1
PortalID: -1
PortalName:
UserID: -1
UserName:
ActiveTabID: -1
ActiveTabName:
RawURL:
AbsoluteURL:
AbsoluteURLReferrer:
UserAgent:
DefaultDataProvider:
ExceptionGUID:
InnerException: Add failed. Duplicate key value supplied.
FileName:
FileLineNumber: -1
FileColumnNumber: -1
Method:
StackTrace:
Message: System.ArgumentException: Add failed. Duplicate key value supplied. at Microsoft.VisualBasic.Collection.Add(Object Item, String Key, Object Before, Object After) at DotNetNuke.Services.Scheduling.DNNScheduling.Scheduler.CoreScheduler.AddToScheduleInProgress(ScheduleHistoryItem objScheduleHistoryItem) at DotNetNuke.Services.Scheduling.DNNScheduling.Scheduler.CoreScheduler.WorkStarted(SchedulerClient& objSchedulerClient)
Source:
Server Naam: REGWEB3

14-1-2008 17:10:30   General Exception       AssemblyVersion: 04.06.02; PortalID: -1; PortalN ...

AssemblyVersion
PortalID: -1
PortalName:
UserID: -1
UserName:
ActiveTabID: -1
ActiveTabName:
RawURL: /dnn/Default.aspx
AbsoluteURL
AbsoluteURLReferrer
UserAgent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; InfoPath.2)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 35a38f56-1ba7-4b64-8bf6-8717a4819916
InnerException: Object reference not set to an instance of an object.
FileName
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Collections.Generic.Dictionary`2.Insert
StackTrace:
Message: System.NullReferenceException: Object reference not set to an instance of an object. at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add) at DotNetNuke.Entities.Tabs.TabController.FillTabInfo(IDataReader dr, Boolean CheckForOpenDataReader) at DotNetNuke.Entities.Tabs.TabController.FillTabInfoDictionary(IDataReader dr)
Source:
Server Naam: REGWEB3: : : /dnn/Default.aspx: 04.06.02

The first error message is caused by a scheduler task that is running so long that it is still running when it goes to start again the next time.  Check the start times and fequencies of all scheduled tasks to ensure none are running too frequently.