warning بعد از آپدیت ubuntu 18.04

[kevin_anderson]

سلام به همگی

دوستان اوبونتو 18.04 رو آپدیت میکنم آخرش warning داره ...

کد: [انتخاب]

                                             
Reading package lists... Done
W: Skipping acquire of configured file 'contrib/binary-i386/Packages' as repository 'http://archive.ubuntu.com/ubuntu artful InRelease' doesn't have the component 'contrib' (component misspelt in sources.list?)
W: Skipping acquire of configured file 'contrib/binary-amd64/Packages' as repository 'http://archive.ubuntu.com/ubuntu artful InRelease' doesn't have the component 'contrib' (component misspelt in sources.list?)
W: Skipping acquire of configured file 'contrib/i18n/Translation-en' as repository 'http://archive.ubuntu.com/ubuntu artful InRelease' doesn't have the component 'contrib' (component misspelt in sources.list?)
W: Skipping acquire of configured file 'contrib/i18n/Translation-en_US' as repository 'http://archive.ubuntu.com/ubuntu artful InRelease' doesn't have the component 'contrib' (component misspelt in sources.list?)
W: Skipping acquire of configured file 'contrib/dep11/Components-amd64.yml' as repository 'http://archive.ubuntu.com/ubuntu artful InRelease' doesn't have the component 'contrib' (component misspelt in sources.list?)
W: Skipping acquire of configured file 'contrib/dep11/icons-64x64.tar' as repository 'http://archive.ubuntu.com/ubuntu artful InRelease' doesn't have the component 'contrib' (component misspelt in sources.list?)

"contrib" چیه و چطور میتونم برطرفش کنم؟