Dropbox does not sync on ubuntu 14.04

Solution 1:

I had the same problem, I removed the .dropbox hidden folder (located at home directory) and reinstalled Dropbox again.

But according to https://www.dropbox.com/help/72 you can reset ownership an permissions running the following commands:

sudo chown "$USER" "$HOME"
sudo chown -R "$USER" ~/Dropbox ~/.dropbox ~/.dropbox-master
sudo chattr -R -i ~/Dropbox
sudo chmod -R u+rw ~/Dropbox ~/.dropbox ~/.dropbox-master

Solution 2:

I have the same problem with Ubuntu 16.04. I ran dropbox from the terminal and it suggested to execute the following command to fix the problem, and restart dropbox:

echo fs.inotify.max_user_watches=100000 | sudo tee -a /etc/sysctl.conf; sudo sysctl -p

It worked for me :-)

Solution 3:

First check whether Dropbox has been installed properly...

Run this command in terminal:

dropbox status

If the output is Dropbox isn't running!

Then run the following command:

dropbox start 

Or if that doesn't work, try dropbox start -i to locate interpreter if possible.

Now Dropbox will start and automatically synchronize the updated files.

Fox next time you can run this command to start Dropbox automatically...

dropbox autostart