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Wednesday, June 23, 2010

Cannot open SharePoint Site - "Cannot Complete Action" SharePoint Site

Creating a site or after making adjustments in IIS, you cannot load a SharePoint Site or get to the http:///_layouts/settings.aspx (settings) page and receive an error:

Cannot complete action.

Please try again.

at Microsoft.SharePoint.Library.SPRequestInternalClass.OpenWebInternal

While I've heard of many causes, one common one most miss - check IIS and ensure that ASP.NET Impersonation is enabled (Administrative Tools > Internet Information Services (IIS) Manager - expand the sites, select the site you are working with and click Authentication under the IIS group - enable ASP.NET Impersonation), run IISReset and you should be good to go!

FYI - MOSS 2007 and SharePoint 2010 have the same issue (msg is diff in 2010).