Blank white background while import theme in 1.7

[30ml]

hi, I am using prestashop_1.7.0.0-RC.2 and trying to import theme. Here I have done exact copy of "classic" default prestashop theme then I have change  "classic" to "Musetec" on config/theme.yml and theme folder name . But while I try to import theme from backoffice on my computer it shows only white background and nothing any messages.  Here, I have edit theme.yml and folder name only. That would be wonder if I know my silly activity.

 

Please download my sample theme on this link  https://dl.dropboxusercontent.com/u/54140575/musetec.zip

 

Thanks for your effort.