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Object reference not set to an instance of an object.

Server Error in '/' Application.

Object reference not set to an instance of an object.

Description: An unhandled exception occurred.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace: 


[NullReferenceException: Object reference not set to an instance of an object.]
   Worksafe.Website.Core.Services.PageComponentService.GetJumpLinks(String[] additionalJumpLinks) +240
   Worksafe.Website.Mvc.Controllers.PageComponentController.JumpLinksRendering() +218
   lambda_method(Closure , ControllerBase , Object[] ) +86
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +34
   System.Web.Mvc.<>c__DisplayClass24_0.<InvokeActionMethodWithFilters>b__0() +79
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +466
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +466
   System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +524

  1. 1

    Engineering controls

    Making physical modifications to facilities, equipment and processes can reduce exposure. Some questions to consider:

    • Can mechanical lifting ads such as hoists, pallet jacks, carts, or conveyors be used instead of manual material handling?
    • Can the load be lifted within the range of knee to waist height?
    • Can the vertical distance the load has to be lifted or lowered be shortened? Options include limiting shelf height, and raising the worker.
    • Can stooped or twisted positions be avoided by providing unrestricted work space, or arranging the workspace differently?
    • Can the size of the load be made smaller? Options include ordering smaller containers, or having workers make two trips with smaller loads rather than one trip with a heavy load.
    • Can carrying distance be shortened by changing the workflow?
  2. 2

    Administrative controls

    Changing work practices and work policies, and training workers in proper lifting and handling techniques, can limit risk of MSIs. Some questions to consider:

    • Can the task design be changed? For example, changing a carrying task to a pushing or pulling task.
    • Can workers be given time to rest or recover when lifting or handling loads?
    • Can work demands and work pace be balanced more effectively
    • Can the tasks be varied?


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