HandleDeleteFromProject failure! - Please help!

Question

Hi, could anyone please point me in the right direction with the following ULS PSI error?

                                                                                                       Project Server-side Project Ope 8syg Medium   PWA:http://epm/pwa, SSP:SharedServices, User:WIN\xxx, PSI:   SSP: Entering HandleDeleteFromProject. 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:04.11 Microsoft.Office.Project.Server (0xC6C0) 0x111F4 Project Server                 Project Server-side Project Ope 8syi Medium   PWA:http://epm/pwa, SSP:SharedServices, User:WIN\xxx, PSI:   SSP: Loading scheduling data. 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:04.49 Microsoft.Office.Project.Server (0xC6C0) 0x111F4 Project Server                 Project Server-side Project Ope 8syj Medium   PWA:http://epm/pwa, SSP:SharedServices, User:WIN\xxx, PSI:   SSP: Scheduling data loaded. 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:04.49 Microsoft.Office.Project.Server (0xC6C0) 0x111F4 Project Server                 Project Server-side Project Ope 8sym Medium   PWA:http://epm/pwa, SSP:SharedServices, User:WIN\xxx, PSI:   SSP: Entering CheckNodeConsistency. 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:04.61 Microsoft.Office.Project.Server (0xC6C0) 0x111F4 Project Server                 Project Server-side Project Ope 8syn Medium   PWA:http://epm/pwa, SSP:SharedServices, User:WIN\xxx, PSI:   SSP: Exiting CheckNodeConsistency. 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:04.61 Microsoft.Office.Project.Server (0xC6C0) 0x111F4 Project Server                 Project Server-side Project Ope 8sz0 Medium   PWA:http://epm/pwa, SSP:SharedServices, User:WIN\xxx, PSI:   SSP: Scheduling data. 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:04.61 Microsoft.Office.Project.Server (0xC6C0) 0x111F4 Project Server                 Project Server-side Project Ope 8sz1 Medium   PWA:http://epm/pwa, SSP:SharedServices, User:WIN\xxx, PSI:   SSP: Data scheduled. 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:05.33 Microsoft.Office.Project.Server (0xC6C0) 0x111F4 Project Server                 Project Server-side Project Ope 8sz3 High     PWA:http://epm/pwa, SSP:SharedServices, User:WIN\xxx, PSI:   SSP: Scheduling failed. 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:05.35 Microsoft.Office.Project.Server (0xC6C0) 0x111F4 Project Server                 Project Server-side Project Ope 8sz4 High     PWA:http://epm/pwa, SSP:SharedServices, User:WIN\xxx, PSI:   System.OverflowException: Arithmetic operation resulted in an overflow.     at Microsoft.Office.Project.Scheduling.BasicCalendar.ExpandExceptions(DayType startDate, DayType finishDate)     at Microsoft.Office.Project.Scheduling.BasicCalendar.EnsureExceptions(DayType startDate, DayType finishDate, Boolean forward)     at Microsoft.Office.Project.Scheduling.BasicCalendar.BasicCalendarExceptionEnumerator..ctor(DayType dayStart, DayType dayProjectedFinish, BasicCalendar calendar, Boolean forward)     at Microsoft.Office.Project.Scheduling.BasicCalendar.GetCalendarExceptionEnumerator(DayType start, DayType finish, Boolean forward)     at Microsoft.Office.Project.Scheduling.CalendarFunctionality.GetCalendarExceptionEnumer... 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:05.35* Microsoft.Office.Project.Server (0xC6C0) 0x111F4 Project Server                 Project Server-side Project Ope 8sz4 High     ...ator(DayType start, Boolean forward)     at Microsoft.Office.Project.Scheduling.CalendarFunctionality.CalendarEffectiveWorkDefinitionEnumerator..ctor(DayType dayStart, CalendarFunctionality calendarFunctionality, Boolean forward)     at Microsoft.Office.Project.Scheduling.CalendarExternalData.GetCalendarDay(Int32 day)     at Microsoft.Office.Project.Scheduling.Calendar.InitShift(AbsDateTime start, Int32 dayMin, Int32 dayMax)     at Microsoft.Office.Project.Scheduling.Calendar.ExtendFromStart(Int32 newDay)     at Microsoft.Office.Project.Scheduling.Calendars.ExtendFromStart(Int32 newDay)     at Microsoft.Office.Project.Scheduling.Session.ExtendFromStart(Int32 additionalDays)     at Microsoft.Office.Project.Scheduling.Utilities.ConvertActualContourForAssignment(Session session, Project proje... 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:05.35* Microsoft.Office.Project.Server (0xC6C0) 0x111F4 Project Server                 Project Server-side Project Ope 8sz4 High     ...ct, Assignment assignment, FixedInt64Contour& contour, Boolean isWorkContour)     at Microsoft.Office.Project.Scheduling.Utilities.ConvertActualContoursForAssignment(Session session, Project project, Assignment assignment)     at Microsoft.Office.Project.Scheduling.Utilities.ConvertActualContours(Session session)     at Microsoft.Office.Project.Scheduling.SessionSchedulerBase.Initialize(Session session, Convert convert, SchedulingOptions options)     at Microsoft.Office.Project.Scheduling.SessionSchedulerBase.Schedule(SessionSchedule schedule, SchedulingOptions options)     at Microsoft.Office.Project.Scheduling.Scheduler.Schedule(SessionSchedule schedule, SchedulingOptions options)     at Microsoft.Office.Project.Scheduling.Scheduler.ScheduleCore(Session session, SchedulingOptions options... 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:05.35* Microsoft.Office.Project.Server (0xC6C0) 0x111F4 Project Server                 Project Server-side Project Ope 8sz4 High     ...)     at Microsoft.Office.Project.Scheduling.Scheduler.ScheduleApply(ISchedulingEngineData data, ISchedulingOptions options, SchedulingDataFilter filter)     at Microsoft.Office.Project.Scheduling.SchedulingEngineData.ScheduleApply(ISchedulingOptions options, SchedulingDataFilter filter)     at Microsoft.Office.Project.Scheduling.SchedulingEngineData.ScheduleApply(ISchedulingOptions options)     at Microsoft.Office.Project.Server.BusinessLayer.ProjectSchedule.Schedule() 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:05.39 Microsoft.Office.Project.Server (0xC6C0) 0x111F4 ULS Logging                   Unified Logging Service       8pav High     Begin collecting minidump 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:05.39 Microsoft.Office.Project.Server (0xC6C0) 0x111F4 ULS Logging                   Unified Logging Service       8pbe High     reporting Exception for tag 6l4p, level: 3 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:05.39 Microsoft.Office.Project.Server (0xC6C0) 0x111F4 Project Server                 Project Server-side Project Ope 6l4p Exception Exception occurred System.OverflowException: Arithmetic operation resulted in an overflow.     at Microsoft.Office.Project.Scheduling.BasicCalendar.ExpandExceptions(DayType startDate, DayType finishDate)     at Microsoft.Office.Project.Scheduling.BasicCalendar.EnsureExceptions(DayType startDate, DayType finishDate, Boolean forward)     at Microsoft.Office.Project.Scheduling.BasicCalendar.BasicCalendarExceptionEnumerator..ctor(DayType dayStart, DayType dayProjectedFinish, BasicCalendar calendar, Boolean forward)     at Microsoft.Office.Project.Scheduling.BasicCalendar.GetCalendarExceptionEnumerator(DayType start, DayType finish, Boolean forward)     at Microsoft.Office.Project.Scheduling.CalendarFunctionality.GetCalendarExceptionEnumerator(DayType start, Boolean forward)     at Microsoft.Of... 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:05.39 Microsoft.Office.Project.Server (0xC6C0) 0x111F4 ULS Logging                   Unified Logging Service       8pat Monitorable Watson collection started: Office SharePoint Server, ULSException12, Microsoft.Office.Project.Server.Queuing, 12.0.6425.0, 49a6e2c7, Microsoft.Office.Project.WebProj, 12.0.6425.0, 49e805d6, 583, 12, OverflowException, 6l4p 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:05.39* Microsoft.Office.Project.Server (0xC6C0) 0x111F4 Project Server                 Project Server-side Project Ope 6l4p Exception ...fice.Project.Scheduling.CalendarFunctionality.CalendarEffectiveWorkDefinitionEnumerator..ctor(DayType dayStart, CalendarFunctionality calendarFunctionality, Boolean forward)     at Microsoft.Office.Project.Scheduling.CalendarExternalData.GetCalendarDay(Int32 day)     at Microsoft.Office.Project.Scheduling.Calendar.InitShift(AbsDateTime start, Int32 dayMin, Int32 dayMax)     at Microsoft.Office.Project.Scheduling.Calendar.ExtendFromStart(Int32 newDay)     at Microsoft.Office.Project.Scheduling.Calendars.ExtendFromStart(Int32 newDay)     at Microsoft.Office.Project.Scheduling.Session.ExtendFromStart(Int32 additionalDays)     at Microsoft.Office.Project.Scheduling.Utilities.ConvertActualContourForAssignment(Session session, Project project, Assignment assignment, FixedInt64Contour& contour, B... 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:05.39* Microsoft.Office.Project.Server (0xC6C0) 0x111F4 Project Server                 Project Server-side Project Ope 6l4p Exception ...oolean isWorkContour)     at Microsoft.Office.Project.Scheduling.Utilities.ConvertActualContoursForAssignment(Session session, Project project, Assignment assignment)     at Microsoft.Office.Project.Scheduling.Utilities.ConvertActualContours(Session session)     at Microsoft.Office.Project.Scheduling.SessionSchedulerBase.Initialize(Session session, Convert convert, SchedulingOptions options)     at Microsoft.Office.Project.Scheduling.SessionSchedulerBase.Schedule(SessionSchedule schedule, SchedulingOptions options)     at Microsoft.Office.Project.Scheduling.Scheduler.Schedule(SessionSchedule schedule, SchedulingOptions options)     at Microsoft.Office.Project.Scheduling.Scheduler.ScheduleCore(Session session, SchedulingOptions options)     at Microsoft.Office.Project.Scheduling.Scheduler.S... 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:05.39* Microsoft.Office.Project.Server (0xC6C0) 0x111F4 Project Server                 Project Server-side Project Ope 6l4p Exception ...cheduleApply(ISchedulingEngineData data, ISchedulingOptions options, SchedulingDataFilter filter)     at Microsoft.Office.Project.Scheduling.SchedulingEngineData.ScheduleApply(ISchedulingOptions options, SchedulingDataFilter filter)     at Microsoft.Office.Project.Scheduling.SchedulingEngineData.ScheduleApply(ISchedulingOptions options)     at Microsoft.Office.Project.Server.BusinessLayer.ProjectSchedule.Schedule() 3c6017be-2517-4316-8604-f18519a0415b
06/10/2012 22:31:06.55 OWSTIMER.EXE (0x0394)                   0x6304 Windows SharePoint Services   Topology                       0 Medium  

Answer 1

Arithmetic operation resulted in an overflow??? Kindly share other information while posting question, its easier for others to understand answer it properly. That's the reason no one has replied to your post. However, are you performing some kind of mathematical operation?

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Thanks, Kashif