How to remove duplicate entries in source list?

When using terminal I have been getting a comment at the bottom of the page "you may want to run an apt-get update to correct these problems". I believe it may be duplicate entries in the source list, how can I correct this?

Thanks in advance!

T

OK, first place to check is Software Update Manager, then click on the Settings button - you will be asked for your login password before it will run.

Then click on the 'Sources tab' (second tab - may have got the name wrong - if there are any with the same name (common one is Security) uncheck duplicate ones and uncheck any that have (source) in brackets next to them.

Then click on OK and let the update manager reload. You may then want to run:

Code:

sudo apt-get update && sudo apt-get dist-upgrade

from a Terminal window.

If you are Running Zorin 9, access the Terminal from the Menu | Accessories | Terminal

If yu are Running Zorin 10, access the Terminal from the Menu | System Tools | Terminal

Hi,

run this terminal command (Ctrl + Alt + t):

Code:

sudo rm -r /var/lib/apt/lists/*

See also:

viewtopic.php?f=5&t=2247