ارور Requires installation of untrusted packages در ubuntu sofware center

[ffthel]

سلام
دوستان هرچیزی میخوام نصب کنم این ارور رو میده
توی انجمن گشتم چیزایی رو که گفته بودید انجام دادم بازم نشد :|
یه هویی این مشکل رو بهم زد نمیدونم چرا

کد: [انتخاب]

# deb cdrom:[Ubuntu-GNOME 14.04 LTS _Trusty Tahr_ - Release amd64 (20140416.2)]/ trusty main multiverse restricted universe
deb http://us.archive.ubuntu.com/ubuntu/ saucy main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://ir.archive.ubuntu.com/ubuntu/ trusty main restricted
deb-src http://ir.archive.ubuntu.com/ubuntu/ trusty main restricted

deb http://http.kali.org/kali kali main non-free contrib
deb http://security.kali.org/kali-security kali/updates main contrib non-free

## Major bug fix updates produced after the final release of the
## distribution.
deb http://ir.archive.ubuntu.com/ubuntu/ trusty-updates main restricted
deb-src http://ir.archive.ubuntu.com/ubuntu/ trusty-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://ir.archive.ubuntu.com/ubuntu/ trusty universe
deb-src http://ir.archive.ubuntu.com/ubuntu/ trusty universe
deb http://ir.archive.ubuntu.com/ubuntu/ trusty-updates universe
deb-src http://ir.archive.ubuntu.com/ubuntu/ trusty-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://ir.archive.ubuntu.com/ubuntu/ trusty multiverse
deb-src http://ir.archive.ubuntu.com/ubuntu/ trusty multiverse
deb http://ir.archive.ubuntu.com/ubuntu/ trusty-updates multiverse
deb-src http://ir.archive.ubuntu.com/ubuntu/ trusty-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://ir.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://ir.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse

deb http://security.ubuntu.com/ubuntu trusty-security main restricted
deb-src http://security.ubuntu.com/ubuntu trusty-security main restricted
deb http://security.ubuntu.com/ubuntu trusty-security universe
deb-src http://security.ubuntu.com/ubuntu trusty-security universe
deb http://security.ubuntu.com/ubuntu trusty-security multiverse
deb-src http://security.ubuntu.com/ubuntu trusty-security multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu trusty partner
# deb-src http://archive.canonical.com/ubuntu trusty partner

## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu trusty main
deb-src http://extras.ubuntu.com/ubuntu trusty main
اینو که برمیدارم درست میشه

کد: [انتخاب]

deb http://http.kali.org/kali kali main non-free contrib
deb http://security.kali.org/kali-security kali/updates main contrib non-free
اما سوال اینجاست که چرا قبلا این مشکل نبود ؟ همیشه این ۲ خط توی سورس بود و مشکلی هم نداشت اما یهویی به مشکل برخورد
میشه کاریش کرد که این این پیام رو رد کرد ؟
ممنون

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