SharePoint By Yagya Shree

Event ID 8214: “Object reference not set to an instance of an object”

with 25 comments



–>You are trying to Check-Out documents from the document library where document check-out is required from the SharePoint site on your SharePoint farm, you are getting following error message

“Object reference not set to an instance of an object”

–>You are unable to open and edit any office documents

–>You are not facing the issue on the document library where check-out is not required to edit the documents

–>Issue started to occur when you installed WSS 3.0 SP2 on you SharePoint server

–>Under Event Viewer–Application you are getting event ID 8214


Event Type:        Error

Event Source:    Windows SharePoint Services 3

Event Category:                Topology

Event ID:              8214

Date:                     5/12/2009

Time:                     3:21:14 PM

User:                     N/A

Computer:          NOVADC2


The description for Event ID ( 8214 ) in Source ( Windows SharePoint Services 3 ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: A request was made for a URL, http://novashare, which has not been configured in Alternate Access Mappings.  Some links may point to the Alternate Access URL for the default zone, http://novadc2.  Review the Alternate Access mappings for this Web application at http://novadc2:13651/_admin/AlternateUrlCollections.aspx and consider adding http://novashare as a Public Alternate Access URL if it will be used frequently.  Help on this error:




–>Open you Central Administration site and go to “operations”

–>look for “Alternate Access Mappings”

–>In the page you will find “Alternate Access Mapping Collection” and it will say “Show All”

–>Click on the small arrow point downwards on this “Show All” location and you will get “Change Alternate Access Mapping Collection”

–>Go ahead and choose the Web Application which is responsible for the problem site

–>You will see that there is a URL already showing in “Default” zone

–>You need to specify the URL which is giving you problem in the “Intranet” zone. So it will see like this:

Default: http://matrix


–>Performed IISRESET

–>Now everything should be working fine, you should be able to check-out and edit the office documents


Written by Yagyashree

May 13, 2009 at 7:19 pm

25 Responses

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  1. This fix worked like a charm. Thanks a lot.



    August 12, 2009 at 11:27 am

  2. Thanks a lot….. It works perfectly


    October 26, 2009 at 5:39 pm

  3. Awesome man thanks for the post it’s very useful…


    November 5, 2009 at 12:54 pm

  4. I’ve been fighting this for hours. I knew it had to do with the update. This post worked. Thanks!

    Mike Robinson

    December 1, 2009 at 9:17 pm

  5. Thanks man, you save my life.

    Deepak Patel

    December 14, 2009 at 7:32 pm

  6. Thank you very much! Incidentally, this same error manifests itself in a Sharepoint search on a site (exact same error is logged in the Application Event Log), which is where I was trying to track the problem down from. I then tried to check out a document after seeing this post and got the exact same error. I don’t understand though, why this fix is required because I never had this intranet alternate access mapping defined previously. So why the requirement after applying SP2??

    Ian Fisher

    January 31, 2010 at 9:49 am

  7. Thanks a lot….. It works perfectly

    Israel Zavala

    February 3, 2010 at 8:13 am

  8. Good work man
    You the man life saver

    Andy Zhao

    May 27, 2010 at 4:54 am

  9. Gracias, fue de mucha ayuda esta documentacion.


    May 29, 2010 at 1:55 am

  10. Thanks a lot for the post… it worked like a charm


    June 22, 2010 at 7:22 pm

  11. I have been changing settings as per given instruction but still i get following error

    “The public Default zone URL http://fs-01 cannot be deleted. Set another URL to be the public Default zone URL before performing this action.”

    i have very less knowledge in WSS..

    thnkx in advance


    June 28, 2010 at 3:50 pm

  12. You are a life saver . I have been having this error for almost a week now and could not find any related article on www .

    Thank you once again


    July 8, 2010 at 1:35 pm

  13. Hi, I am wondering this solution didn’t work for me.

    May be my issue is different:

    this is happening for few users although they can open doc usning mozila. No security issue found.

    Please help.

    Thanks/ Ibnul


    July 23, 2010 at 8:30 pm

  14. Hey thanks for the tip, it worked well and got me out of a bind.


    August 25, 2010 at 9:27 am

  15. Perfect! Thanks for the post! I didn’t have to do iisreset to make it work.


    October 29, 2010 at 12:27 am

  16. Thnx 🙂


    November 16, 2010 at 4:54 pm

  17. Huh? Was this blog post edited or something? I don’t follow…
    You give excellent instructions on how to navigate to whatever the “Alternate Access Mappings” tool is, but NOTHING about what to do when you get there? Further, I don’t see any way to trigger an IIS reset from here; isn’t that done server side?

    Also, follow up question: This is a brand new server. What should be (or should have been) done to avoid having this happen next time?

    Any help would be appreciated.


    January 25, 2011 at 9:15 pm

  18. Worked Perfectly. Thank you very much!

    Anthony Bauza

    March 30, 2011 at 8:40 pm

  19. Worked for me 😀 Awesome! Thank you!


    May 5, 2011 at 5:31 am

  20. Thanks fella, worked a treat!


    June 29, 2011 at 2:20 pm

  21. Hi,
    I am getting the following error when i am trying to resolve the issue as per your resolution procedure:
    The public Default zone URL http://aos-server:2816 cannot be deleted. Set another URL to be the public Default zone URL before performing this action.
    Kindly guide me.

    Thanks in advance,


    July 21, 2011 at 11:41 am

  22. Hi,
    When i am trying the change the Default Zone to Intranet Zone i am getting the following error:
    “The public Default zone URL http://aos-server:2816 cannot be deleted. Set another URL to be the public Default zone URL before performing this action. ”
    Pls guide me.

    Thanks in advance


    July 21, 2011 at 5:28 pm

  23. Thats works for me!!!!! Thanks!!!


    August 4, 2011 at 4:32 pm

  24. Hi

    I installed my sharepoint(WSS 3.0) on my server,I access this server outside by static IP, When i trying to check out the document from outside the server means i got object reference error.Here i didn’t use any ISA server. Please help me

    My static ip is eg:

    my servername is prowess (port no 80)

    so please tell me how i should give the public url name?

    sathish kasinathan

    December 27, 2011 at 4:02 pm

  25. @sathish kasinathan, you need to purchase a SSL certificate which you can install on your website under IIS and then use that URL to browse your documents.


    January 2, 2012 at 10:43 am

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