I am unable to install updates. Get an error message saying "not enough free disk space" when there is plenty of disk space in the PC. I could send the screen shot if an e-mail address is provided.
I run 13.04
Please help. Jay
I had the same problem. I was able to solve it with Ubuntu-Tweak.
Use your terminal and type or copy past.
This will add the repository you need to get the app.
This will update the software list.
This will install the app.
After you install it go to open dash and type "ubuntu tweak".
Once you run it go to janitor tab and select Apps , Personal and System
Then on the items on the right you can click on the boxes of what you want to clean. It will show you how much memory each item is using.
Then click the button clean on the bottom right of the screen.
This worked for me, hope it works for you.