- Open your Dropbox folder in Finder.
- Press Shift-Command-. (period).
- A folder named “.dropbox.cache” will appear.
- Open the “.dropbox.cache” folder.
- Delete the files in your cache by dragging them into your Trash.
Dropbox team users: If you have a Dropbox team account linked to the desktop, the name of your Dropbox folder will be appended with your team name.
For example, if you were clearing your cache on a Dropbox team account called "Organization" you'd see:
~/Organization Dropbox/.dropbox.cache
If you have a personal account linked to the desktop, the name of your Dropbox folder will be appended with your personal username in parentheses “(Personal)”.
For example, if you were clearing your cache on a personal linked account, you’d see:
~/Dropbox (Personal)/.dropbox.cache