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error related image is uploaded we want to install ATutor on Linux server Ubuntu 16.0.4 but we encountered errors as :some files not found or "sudo apt-get update" gives errors seen in attached image most important ERROR FAIL TO FETCH CDROM. How to resolve

enter image description here

edwinksl
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iqra aslam
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  • Are you using a CD to install ATutor? –  Aug 15 '16 at 06:22
  • No I am not using any CD to install ATutor – iqra aslam Aug 21 '16 at 07:01
  • Try deactivating the CD sources from the repositories. Open Settings, Softwares and Updates, Other Software, and deselect the first option, CDROM. –  Aug 21 '16 at 07:05
  • i have already resolved thsi issue the solution is write on command prompt "cd /etc/apt" then type "ls" after this "sudo nano sources.list" sources file will open then insert a # berfore the line cdrom starts.After this press Ctrl+X then enter y and press Enter the file will be saved in edited form.and the error will be solved. – iqra aslam Sep 04 '16 at 17:04
  • Good. Why don't you write that as an aswser, so it can be marked as solved? –  Sep 05 '16 at 06:51
  • sorry i was forget about it. i am using stack first time so... – iqra aslam Sep 05 '16 at 14:54

1 Answers1

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i have already resolved this issue the solution is write on command prompt "cd /etc/apt" then type "ls" after this "sudo nano sources.list" sources file will open then insert a # berfore the line cdrom starts.After this press Ctrl+X then enter y and press Enter the file will be saved in edited form.and the error will be solved. –Or you can visit the this link for more clarity "https://www.youtube.com/watch?v=bfyobrcSx1Q"

iqra aslam
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