Problem Description
-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: 3/20/2012
Time: 4:25:15 AM
User: N/A
Computer: nasdac
Description:
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://nasdac
: 13651/_admin/AlternateUrlCollections.aspx and consider adding http://nasdac as a Public Alternate Access URL if it will be used frequently. Help on this error: http://go.microsoft.com/fwlink/?LinkId=114854.
Resolution:
1. Open you Central Administration site and go to “operations”
2. Look for “Alternate Access Mappings”
3. In the page you will find “Alternate Access Mapping Collection” and it will say “Show All”
4. Click on the small arrow point downwards on this “Show All” location and you will get “Change Alternate Access Mapping Collection”
5. Go ahead and choose the Web Application which is responsible for the problem site
6. You will see that there is a URL already showing in “Default” zone
7. You need to specify the URL which is giving you problem in the “Intranet” zone. So it will see like this:
Default: http://sharepointmagic
Intranet: http://myspinventions.org
8. Performed IISRESET
Now everything should be working fine, you should be able to check-out and edit the office documents
If you have any queries/questions regarding the above mentioned information then please let me know. I would be more than happy to help you as well as resolves your issues J
