Dropbox just updated and moved the Dropbox folder to ~/Library/CloudStorage/Dropbox, a secure location. There is still a symlink from ~/Dropbox to that folder, so hopefully any local scripts will continue working.
The first thing I did was open an iTerm2 and attempt to look in ~/Dropbox with cd Dropbox. As it is hard-coded in my brain, when I change to a new directory, I will want to see what’s in it, so I immediately typed ls -l. Too fast for my own good, as I noticed the flicker of a dialogue appear and disappear when I tapped the return key.
~/Dropbox » ls
ls: cannot open directory ‘.’: Operation not permitted
I had denied iTerm2 access to the Dropbox directory. Oops.
Thankfully, it’s easy to fix. Open up the Security & Privacy settings in System Preferences. Go to the Privacy tab.
Click on Files and Folders and scroll down to your terminal programme.
You’ll see a new checkbox there for Dropbox. Click the lock to authenticate and click the Dropbox checkbox.
Go back to your terminal, and you’ll be able to see what’s in ~/Dropbox once again.