The file “Screenshot - 3_30_2016 , 8_40_09 PM .jpg” couldn’t be opened because you don’t have permission to view it.

select the file,

choose GetInfo from the Finder's File Menu,

if the problem and its solution is not obvious to you, post the getInfo box (or at least the bottom portion showing the file's permissions) for assistance.

In what directory is the file located? (shown as "Where:" near the top of the box)

what is the owner (single-person icon) permissions?

what is the group (two person icon) permissions?

what is the everyone (multiple person Icon) permissions?

are there any more permissions listed after that?