Every time I try and take a screenshot this appears ^. I've tried looking for the location of my saved screenshots typing in commands into the terminal and my Desktop folder is unlocked (in Get Info).
This is what was on my terminal:
defaults read com.apple.screencapture location
The domain/default pair of (com.apple.screencapture, location) does not exist
defaults write com.apple.screencapture location ~/Desktop
Could not write domain com.apple.screencapture; exiting