Error Creating Layout Page 'Sorry, something went wrong..' in SharePoint 2013

Past day I tried to follow a new article Here on LearningSharePoint.com for Creating Custom Layout Pages in SharePoint 2013 but when I clicked on "Create a Layout" link in Deisgn Manager I got the following error -

 

The error has no proper explanation and I couldn't find anything on google as well.I tried Re-Creating Site and Re-enabling Publishing feature in the site but nothing worked.

 

Finally, Re-Creating the Site Collection worked and the regular popup started appering.