Error: Unable to edit master page in sharepoint 2010 designer. It gives error” Server could not complete the request”.
Reason: New site (http://172.17.1.131:17003 with zone as default) is created but alternate access mapping is not configured and zone as intranet not created.
Steps: Goto Central Admin > System Settings > Click on add Internal URL’s
Type the address like (http://riy-ecmdev1:17003) with zone as intranet and click OK.