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Monday, May 15, 2017

[SOLVED] - Unable to find expected entry 'universe/source/Sources' in Release file (Wrong sources.list entry or malformed file)

Because of repeatedly getting the following error,
 W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty/Release  Unable to find expected entry 'universe/source/Sources' in Release file (Wrong sources.list entry or malformed file); I was unable to update my source list and thus unable to install softwares from the terminal. Finally, today I managed to solved this issue and also was able to update my apt source list.

1. Open your Unity Dash & type update & select 'Softwares & Updates' as shown in the image below:

Solve - Wrong sources.list entry or malformed file issue
Click image to enlarge
2. Click 'Download from' and choose 'Other'


3. Click 'Select Best Server'. Ubuntu will take some time to select the best server for you. Accept it.

4. Now try running the software update again. It should work.

5. If it does not go through steps 1-4 again. This time Ubuntu will (hopefully) select a different server as the 'Best server'. Try software update again.
THE KEY IS TO CHANGE THE DOWNLOAD SERVER FROM WHERE UBUNTU UPDATES ITSELF.

- With inputs from: https://askubuntu.com/questions/383644/how-to-solve-wrong-sources-list-entry-or-malformed-file/795941

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