On a SharePoint Foundation 2010 Site, I get this error when I select File|Editin SharePoint Deisgner 2010All of the options on the SharePoint Designer configuration page are checked forboth the application in Central Admin and in the site settings.What am I missing?
Have you put yourself in the correct group?
Site Owner's group which has full control and, struggling to figure this out, mypersonal ID has designer access.I even deleted the check marks from the SPD config pages and reset IIS and thenrechecked them and reset IIS.
Check this KB article out:http://support.microsoft.com/kb/940958/en-us