درود بر همه عزیزان
ببخشید که تاپیک قدیمی رو بالا اوردم
من تمام روش ها رو رفتم اما جواب نمیده
از پروپرتیز دسترسی ها رو هرچقدر میخوام تغییر بدم تغییر نمیکنه و سریع به گزینه قبلیش تغییر میکنه و سیو نمیشه
از داخل ترمینال هم موقع آپدیت ارور زیر رو میده
j-akbari@j-akbari:~$ sudo apt-get update
Ign http://ir.archive.ubuntu.com trusty InRelease
Ign http://ir.archive.ubuntu.com trusty-updates InRelease
Ign http://ir.archive.ubuntu.com trusty-backports InRelease
Hit http://ir.archive.ubuntu.com trusty Release.gpg
Hit http://ir.archive.ubuntu.com trusty-updates Release.gpg
Hit http://ir.archive.ubuntu.com trusty-backports Release.gpg
Hit http://ir.archive.ubuntu.com trusty Release
Ign http://security.ubuntu.com trusty-security InRelease
Hit http://ir.archive.ubuntu.com trusty-updates Release
Hit http://ir.archive.ubuntu.com trusty-backports Release
Hit http://ir.archive.ubuntu.com trusty/main Sources
Ign http://ppa.launchpad.net trusty InRelease
Hit http://ir.archive.ubuntu.com trusty/restricted Sources
Get:1 http://security.ubuntu.com trusty-security Release.gpg [933 B]
Hit http://ir.archive.ubuntu.com trusty/universe Sources
Hit http://ir.archive.ubuntu.com trusty/multiverse Sources
Hit http://ir.archive.ubuntu.com trusty/main amd64 Packages
Hit http://ir.archive.ubuntu.com trusty/restricted amd64 Packages
Get:2 http://security.ubuntu.com trusty-security Release [63.5 kB]
Hit http://ir.archive.ubuntu.com trusty/universe amd64 Packages
Hit http://ir.archive.ubuntu.com trusty/multiverse amd64 Packages
Hit http://ir.archive.ubuntu.com trusty/main i386 Packages
Hit http://ir.archive.ubuntu.com trusty/restricted i386 Packages
Hit http://ir.archive.ubuntu.com trusty/universe i386 Packages
Hit http://ir.archive.ubuntu.com trusty/multiverse i386 Packages
Hit http://ir.archive.ubuntu.com trusty/main Translation-en
Hit http://ir.archive.ubuntu.com trusty/multiverse Translation-en
Ign http://ppa.launchpad.net trusty InRelease
Hit http://ppa.launchpad.net trusty Release.gpg
Hit http://ppa.launchpad.net trusty Release.gpg
Hit http://ir.archive.ubuntu.com trusty/restricted Translation-en
Hit http://ppa.launchpad.net trusty Release
Hit http://ppa.launchpad.net trusty Release
Hit http://ppa.launchpad.net trusty/main amd64 Packages
Get:3 http://security.ubuntu.com trusty-security/main Sources [87.9 kB]
Hit http://ppa.launchpad.net trusty/main i386 Packages
Hit http://ppa.launchpad.net trusty/main Translation-en
Hit http://ir.archive.ubuntu.com trusty/universe Translation-en
Get:4 http://security.ubuntu.com trusty-security/restricted Sources [2,061 B]
Hit http://ir.archive.ubuntu.com trusty-updates/main Sources
Get:5 http://ppa.launchpad.net trusty/main amd64 Packages [472 B]
Hit http://ir.archive.ubuntu.com trusty-updates/restricted Sources
Hit http://ir.archive.ubuntu.com trusty-updates/universe Sources
Hit http://ir.archive.ubuntu.com trusty-updates/multiverse Sources
Get:6 http://security.ubuntu.com trusty-security/universe Sources [28.1 kB]
Hit http://ir.archive.ubuntu.com trusty-updates/main amd64 Packages
Get:7 http://ppa.launchpad.net trusty/main i386 Packages [472 B]
Hit http://ir.archive.ubuntu.com trusty-updates/restricted amd64 Packages
Get:8 http://dl.google.com stable InRelease [1,540 B]
100% [8 InRelease gpgv 1,540 B] [Waiting for headers] [Waiting for headers] [WaSplitting up /var/lib/apt/lists/partial/dl.google.com_linux_chrome_deb_dists_stabIgn http://dl.google.com stable InRelease
E: GPG error: http://dl.google.com stable InRelease: Clearsigned file isn't valid, got 'NODATA' (does the network require authentication?)
j-akbari@j-akbari:~$
ممنون میشم راهنمایی بفرمایید