When I try to open SharePoint 2013 On Prem site using SP Designer 2013 I am getting

Folder name is not valid error

I tried these solutions from this link, but couldn't get it working.


  • Make sure you are using the correct URL. Try the URL in Internet Explorer first. – Amal Hashim Jul 22 '16 at 14:23
  • I opened the site in IE and then copied the url into designer. The same problem exists. – MSiri28 Jul 22 '16 at 14:24
  • I assume you didn't put the full url which include the page also.. Try only the siteurl instead – Amal Hashim Jul 22 '16 at 14:25
  • Thanks for the responses. Yes I tried with the site url.. Its the same behavior.. – MSiri28 Jul 22 '16 at 14:27

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