Thread: cannot install build-essential

hello, today first day use ubuntu c++ programming. however, when trying install build-essential, failed. help?

this output shown:

vie@vie-laptop:~/testc++$ sudo apt-get install build-essential
reading package lists... done
building dependency tree
reading state information... done
package build-essential not available, referred package.
may mean package missing, has been obsoleted, or
available source
e: package build-essential has no installation candidate
vie@vie-laptop:~/testc++$

this /etc/apt/sources.list content:
#deb cdrom:[ubuntu 9.04 _jaunty jackalope_ - release i386 (20090420.1)]/ jaunty main restricted
# see http://help.ubuntu.com/community/upgradenotes how upgrade to
# newer versions of distribution.

deb http://archive.ubuntu.com/ubuntu/ jaunty main restricted
deb-src http://archive.ubuntu.com/ubuntu/ jaunty main restricted

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

## n.b. software repository entirely unsupported ubuntu
## team. also, please note software in universe not receive any
## review or updates ubuntu security team.
deb http://archive.ubuntu.com/ubuntu/ jaunty universe
deb-src http://archive.ubuntu.com/ubuntu/ jaunty universe
deb http://archive.ubuntu.com/ubuntu/ jaunty-updates universe
deb-src http://archive.ubuntu.com/ubuntu/ jaunty-updates universe

## n.b. software repository entirely unsupported ubuntu
## team, , may not under free licence. please satisfy
## rights use software. also, please note software in
## multiverse not receive review or updates ubuntu
## security team.
deb http://archive.ubuntu.com/ubuntu/ jaunty multiverse
deb-src http://archive.ubuntu.com/ubuntu/ jaunty multiverse
deb http://archive.ubuntu.com/ubuntu/ jaunty-updates multiverse
deb-src http://archive.ubuntu.com/ubuntu/ jaunty-updates multiverse

## uncomment following 2 lines add software 'backports'
## repository.
## n.b. software repository may not have been tested as
## extensively contained in main release, although includes
## newer versions of applications may provide useful features.
## also, please note software in backports not receive review
## or updates ubuntu security team.
# deb http://archive.ubuntu.com/ubuntu/ jaunty-backports main restricted universe multiverse
# deb-src http://archive.ubuntu.com/ubuntu/ jaunty-backports main restricted universe multiverse

## uncomment following 2 lines add software canonical's
## 'partner' repository.
## software not part of ubuntu, offered canonical , the
## respective vendors service ubuntu users.
# deb http://archive.canonical.com/ubuntu jaunty partner
# deb-src http://archive.canonical.com/ubuntu jaunty partner

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

welcome forum!

problem using jaunty/9.04 has passed end-of-life , unsupported. it's obsolete version. repositories closed , can neither updates nor application packages installation. - in fact can old-releases repository, far better use supported version.

have installed jaunty? if so, suggest fresh installation 1 of supported versions. best 10.04 long-term support release, supported until april 2013 on desktop. or if try newer version, 10.10 released last october, or 11.04 last april. both of supported 18 months.

post if want download link isos. out of interest, why did install jaunty?

Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Installation & Upgrades [ubuntu] cannot install build-essential

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