Can't open sharepoint site with sharepoint designer 2010

Question

Hi there,
We've installed SP Foundation + SP Server 2010 and set up some sites.
when we tried to open it with SP Designer 2010, it fails and gave us some errors.
opening SPD through site actions :
unable to open website. possible causes:
1. the web server may not have sharepoint server installed
2. the web server may be temporarily out of service
3. if you are connecting through a proxy server, the proxy settings may be incorrect
4. an error may have occured in the web server
opening sharepoint site through SPD:
the folder 'http://mysp.domain.com/site/default.aspx' isn't accessible. the folder may be located in an unavailable location, protected with a password, or the filename contains a / or \.
the thing is ... we have no problem with sharepoint designer 2007.
any idea?

Answer 1

Hi p.andrew,
If you want to open the site use SPD, you should enable the Client Integration for the web application at first.
Here are the steps:
1.      
Go to this location : “Central administration” > “Security” > “Specify authentication provider”;
2.      
Select the Web Application which you want to edit use SPD (SharePoint Designer 2010), and click the “Default” below the ‘Zone’;
3.      
Select the “Yes” radio button
 in the Client Integration section, and click the ‘Save’ Button;
4.      
Close and re-Open the IE;
5.      
Try to Open the site using SPD.
More information about this:
http://snahta.blogspot.com/2009/01/folder-may-be-located-in-unavailable.html
http://skurocks.wordpress.com/2009/06/26/enable-client-integration-user-permissions-for-web-application-%E2%80%93-caution/