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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

    Elimination or substitution

    This involves eliminating the hazard by substituting a safer process or material, where possible. It is the most effective control. Some questions to consider:

    • Can a quieter machine or piece of equipment be used?
    • Can a process that generates less noise be used?
  2. 2

    Engineering controls

    This type of control involves making physical modifications to control the hazard or reduce exposure. When practical, employers must make physical modifications to facilities, equipment, and processes to reduce exposure to noise. An acoustical engineer can help employers identify engineering controls and start using them. Combining some options may maximize noise reduction and improve worker safety. Some questions to consider:

    • Can noise be reduced at the source?
    • Can the noise source be enclosed?
    • Can workers be enclosed from the noise?
    • Can the room be acoustically treated?
  3. 3

    Administrative controls

    This type of control involves changing work practices and policies. Awareness tools and training also count as administrative controls. All can limit the risk of noise exposure. Some questions to consider:

    • Can shift lengths be reduced to cut exposure time?
    • Can workers be scheduled as far away from the source of noise as possible?
    • Has a hearing loss prevention program been started?
    • Have warning signs been posted in the work area?
    • Have workers taken their annual hearing tests?
  4. 4

    Personal protective equipment

    This is the least reliable control. When used, there must always be at least one other control in place as well. Some questions to consider:

    • Do workers have appropriate hearing protection that fits them?
    • Are workers wearing their hearing protection properly?

    Bringing noise down to a safe level may eliminate the need for a hearing loss prevention program and hearing protection.



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