Package network-manager-pptp is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'network-manager-pptp' has no installation candidate
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package pptp-linux
sudo apt install Aptitude
با دستور Aptitude امتحان کن ببین نصب میشه ولی اول خودش را باید نصب کنیکد: [انتخاب]sudo apt install Aptitude
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package aptitude is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'aptitude' has no installation candidate
برا دومی مخازنتو اپدیت کن بزن:
sudo apt update
super@super-lubuntu:~$ sudo apt install Aptitude
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package aptitude is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'aptitude' has no installation candidate
super@super-lubuntu:~$ sudo apt update
Ign http://ir.archive.ubuntu.com utopic InRelease
Ign http://ir.archive.ubuntu.com utopic-updates InRelease
Ign http://ir.archive.ubuntu.com utopic-backports InRelease
Ign http://ir.archive.ubuntu.com utopic Release.gpg
Ign http://extras.ubuntu.com utopic InRelease
Ign http://ir.archive.ubuntu.com utopic-updates Release.gpg
Ign http://ir.archive.ubuntu.com utopic-backports Release.gpg
Ign http://security.ubuntu.com utopic-security InRelease
Ign http://ir.archive.ubuntu.com utopic Release
Hit http://extras.ubuntu.com utopic Release.gpg
Ign http://ir.archive.ubuntu.com utopic-updates Release
Ign http://ir.archive.ubuntu.com utopic-backports Release
Ign http://security.ubuntu.com utopic-security Release.gpg
Hit http://extras.ubuntu.com utopic Release
Ign http://security.ubuntu.com utopic-security Release
Hit http://extras.ubuntu.com utopic/main Sources
Hit http://extras.ubuntu.com utopic/main i386 Packages
Ign http://extras.ubuntu.com utopic/main Translation-en_US
Ign http://extras.ubuntu.com utopic/main Translation-en
Err http://security.ubuntu.com utopic-security/main Sources
404 Not Found [IP: 91.189.88.24 80]
Err http://security.ubuntu.com utopic-security/restricted Sources
404 Not Found [IP: 91.189.88.24 80]
Err http://security.ubuntu.com utopic-security/universe Sources
404 Not Found [IP: 91.189.88.24 80]
Err http://security.ubuntu.com utopic-security/multiverse Sources
404 Not Found [IP: 91.189.88.24 80]
Err http://security.ubuntu.com utopic-security/main i386 Packages
404 Not Found [IP: 91.189.88.24 80]
Err http://security.ubuntu.com utopic-security/restricted i386 Packages
404 Not Found [IP: 91.189.88.24 80]
Err http://security.ubuntu.com utopic-security/universe i386 Packages
404 Not Found [IP: 91.189.88.24 80]
Err http://security.ubuntu.com utopic-security/multiverse i386 Packages
404 Not Found [IP: 91.189.88.24 80]
Ign http://security.ubuntu.com utopic-security/main Translation-en_US
Ign http://security.ubuntu.com utopic-security/main Translation-en
Ign http://security.ubuntu.com utopic-security/multiverse Translation-en_US
Ign http://security.ubuntu.com utopic-security/multiverse Translation-en
Ign http://security.ubuntu.com utopic-security/restricted Translation-en_US
Ign http://security.ubuntu.com utopic-security/restricted Translation-en
Err http://ir.archive.ubuntu.com utopic/main Sources
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic/restricted Sources
404 Not Found [IP: 217.170.252.28 80]
Ign http://security.ubuntu.com utopic-security/universe Translation-en_US
Err http://ir.archive.ubuntu.com utopic/universe Sources
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic/multiverse Sources
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic/main i386 Packages
404 Not Found [IP: 217.170.252.28 80]
Ign http://security.ubuntu.com utopic-security/universe Translation-en
Err http://ir.archive.ubuntu.com utopic/restricted i386 Packages
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic/universe i386 Packages
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic/multiverse i386 Packages
404 Not Found [IP: 217.170.252.28 80]
Ign http://ir.archive.ubuntu.com utopic/main Translation-en_US
Ign http://ir.archive.ubuntu.com utopic/main Translation-en
Ign http://ir.archive.ubuntu.com utopic/multiverse Translation-en_US
Ign http://ir.archive.ubuntu.com utopic/multiverse Translation-en
Ign http://ir.archive.ubuntu.com utopic/restricted Translation-en_US
Ign http://ir.archive.ubuntu.com utopic/restricted Translation-en
Ign http://ir.archive.ubuntu.com utopic/universe Translation-en_US
Ign http://ir.archive.ubuntu.com utopic/universe Translation-en
Err http://ir.archive.ubuntu.com utopic-updates/main Sources
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic-updates/restricted Sources
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic-updates/universe Sources
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic-updates/multiverse Sources
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic-updates/main i386 Packages
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic-updates/restricted i386 Packages
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic-updates/universe i386 Packages
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic-updates/multiverse i386 Packages
404 Not Found [IP: 217.170.252.28 80]
Ign http://ir.archive.ubuntu.com utopic-updates/main Translation-en_US
Ign http://ir.archive.ubuntu.com utopic-updates/main Translation-en
Ign http://ir.archive.ubuntu.com utopic-updates/multiverse Translation-en_US
Ign http://ir.archive.ubuntu.com utopic-updates/multiverse Translation-en
Ign http://ir.archive.ubuntu.com utopic-updates/restricted Translation-en_US
Ign http://ir.archive.ubuntu.com utopic-updates/restricted Translation-en
Ign http://ir.archive.ubuntu.com utopic-updates/universe Translation-en_US
Ign http://ir.archive.ubuntu.com utopic-updates/universe Translation-en
Err http://ir.archive.ubuntu.com utopic-backports/main Sources
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic-backports/restricted Sources
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic-backports/universe Sources
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic-backports/multiverse Sources
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic-backports/main i386 Packages
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic-backports/restricted i386 Packages
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic-backports/universe i386 Packages
404 Not Found [IP: 217.170.252.28 80]
Err http://ir.archive.ubuntu.com utopic-backports/multiverse i386 Packages
404 Not Found [IP: 217.170.252.28 80]
Ign http://ir.archive.ubuntu.com utopic-backports/main Translation-en_US
Ign http://ir.archive.ubuntu.com utopic-backports/main Translation-en
Ign http://ir.archive.ubuntu.com utopic-backports/multiverse Translation-en_US
Ign http://ir.archive.ubuntu.com utopic-backports/multiverse Translation-en
Ign http://ir.archive.ubuntu.com utopic-backports/restricted Translation-en_US
Ign http://ir.archive.ubuntu.com utopic-backports/restricted Translation-en
Ign http://ir.archive.ubuntu.com utopic-backports/universe Translation-en_US
Ign http://ir.archive.ubuntu.com utopic-backports/universe Translation-en
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic/main/source/Sources 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic/restricted/source/Sources 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic/universe/source/Sources 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic/multiverse/source/Sources 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic/main/binary-i386/Packages 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic/restricted/binary-i386/Packages 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic/universe/binary-i386/Packages 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic/multiverse/binary-i386/Packages 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic-updates/main/source/Sources 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic-updates/restricted/source/Sources 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic-updates/universe/source/Sources 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic-updates/multiverse/source/Sources 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic-updates/main/binary-i386/Packages 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic-updates/restricted/binary-i386/Packages 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic-updates/universe/binary-i386/Packages 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic-updates/multiverse/binary-i386/Packages 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic-backports/main/source/Sources 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic-backports/restricted/source/Sources 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic-backports/universe/source/Sources 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic-backports/multiverse/source/Sources 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic-backports/main/binary-i386/Packages 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic-backports/restricted/binary-i386/Packages 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic-backports/universe/binary-i386/Packages 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://ir.archive.ubuntu.com/ubuntu/dists/utopic-backports/multiverse/binary-i386/Packages 404 Not Found [IP: 217.170.252.28 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/utopic-security/main/source/Sources 404 Not Found [IP: 91.189.88.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/utopic-security/restricted/source/Sources 404 Not Found [IP: 91.189.88.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/utopic-security/universe/source/Sources 404 Not Found [IP: 91.189.88.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/utopic-security/multiverse/source/Sources 404 Not Found [IP: 91.189.88.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/utopic-security/main/binary-i386/Packages 404 Not Found [IP: 91.189.88.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/utopic-security/restricted/binary-i386/Packages 404 Not Found [IP: 91.189.88.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/utopic-security/universe/binary-i386/Packages 404 Not Found [IP: 91.189.88.24 80]
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/utopic-security/multiverse/binary-i386/Packages 404 Not Found [IP: 91.189.88.24 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.
Well it failed to fetch because Ubuntu Natty has reached EOL(End Of Life). So you need to update your source list to install this package.
But I was wondering how saucy came into your source list while you were using natty. This is misleading. Taking in account that your system is Natty, follow the steps updating your source list so you can install packages from old repo archive.
Backup current source list.
mv /etc/apt/sources.list /etc/apt/sources.list.old
create a new source list
nano /etc/apt/sources.list
Paste the following in it.
deb http://old-releases.ubuntu.com/ubuntu/ natty main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ natty-updates main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ natty-security main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ natty-backports main restricted universe multiverse
Exit the editor
Ctrl +x
Y
Now update
sudo apt-get update
Install your required package. Thats it.
[/
lubuntu:~$ sudo apt-get install network-manager-gnome
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
network-manager-gnome : Depends: libgconf2-4 (>= 2.31.1) but it is not going to be installed
Depends: network-manager (>= 0.8.4~) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
با حروف کوچک بنویس aptitudeبا دستور Aptitude امتحان کن ببین نصب میشه ولی اول خودش را باید نصب کنیکد: [انتخاب]sudo apt install Aptitude
سلام
پیام زیر را می گیرمکد: [انتخاب]
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package aptitude is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'aptitude' has no installation candidate