desktop:~$ sudo add-apt-repository ppa:ui-toolkit/ppa && sudo apt-get update && sudo apt-get install qt-components-ubuntu qt-components-ubuntu-demos qt-components-ubuntu-examples qt-components-ubuntu-doc notepad-qml
You are about to add the following PPA to your system:
  Ubuntu SDK preview for Ubuntu application development
 More info: https://launchpad.net/~ui-toolkit/+archive/ppa
Press [ENTER] to continue or ctrl-c to cancel adding it

gpg: keyring `/tmp/tmpVmt9kD/secring.gpg' created
gpg: keyring `/tmp/tmpVmt9kD/pubring.gpg' created
gpg: requesting key EFF8D5ED from hkp server keyserver.ubuntu.com
gpg: /tmp/tmpVmt9kD/trustdb.gpg: trustdb created
gpg: key EFF8D5ED: public key "Launchpad PPA for UI Toolkit" imported
gpg: Total number processed: 1
gpg:               imported: 1  (RSA: 1)
OK
Ign http://us.archive.ubuntu.com precise InRelease
Ign http://us.archive.ubuntu.com precise-updates InRelease
Ign http://us.archive.ubuntu.com precise-backports InRelease
Hit http://plex.r.worldssl.net lucid InRelease
Hit http://plex.r.worldssl.net lucid/main amd64 Packages
Hit http://us.archive.ubuntu.com precise Release.gpg
Hit http://plex.r.worldssl.net lucid/main i386 Packages
Ign http://security.ubuntu.com precise-security InRelease
Ign http://ppa.launchpad.net precise InRelease
Ign http://ppa.launchpad.net precise InRelease
Ign http://ppa.launchpad.net precise InRelease
Get:1 http://us.archive.ubuntu.com precise-updates Release.gpg [198 B]
Get:2 http://us.archive.ubuntu.com precise-backports Release.gpg [198 B]
Hit http://security.ubuntu.com precise-security Release.gpg
Ign http://extras.ubuntu.com precise InRelease
Ign http://ppa.launchpad.net precise InRelease
Hit http://ppa.launchpad.net precise Release.gpg
Hit http://us.archive.ubuntu.com precise Release
Ign http://plex.r.worldssl.net lucid/main TranslationIndex
Hit http://security.ubuntu.com precise-security Release
Get:3 http://us.archive.ubuntu.com precise-updates Release [49.6 kB]
Hit http://extras.ubuntu.com precise Release.gpg
Hit http://ppa.launchpad.net precise Release.gpg
Ign http://ppa.launchpad.net precise Release.gpg
Hit http://security.ubuntu.com precise-security/main Sources
Hit http://extras.ubuntu.com precise Release
Get:4 http://us.archive.ubuntu.com precise-backports Release [49.6 kB]
Hit http://ppa.launchpad.net precise Release.gpg
Hit http://security.ubuntu.com precise-security/restricted Sources
Hit http://extras.ubuntu.com precise/main Sources
Hit http://security.ubuntu.com precise-security/universe Sources
Hit http://security.ubuntu.com precise-security/multiverse Sources
Hit http://security.ubuntu.com precise-security/main amd64 Packages
Hit http://security.ubuntu.com precise-security/restricted amd64 Packages
Hit http://security.ubuntu.com precise-security/universe amd64 Packages
Hit http://security.ubuntu.com precise-security/multiverse amd64 Packages
Hit http://security.ubuntu.com precise-security/main i386 Packages
Hit http://security.ubuntu.com precise-security/restricted i386 Packages
Hit http://security.ubuntu.com precise-security/universe i386 Packages
Hit http://ppa.launchpad.net precise Release
Hit http://ppa.launchpad.net precise Release
Hit http://us.archive.ubuntu.com precise/main Sources
Hit http://us.archive.ubuntu.com precise/restricted Sources
Hit http://us.archive.ubuntu.com precise/universe Sources
Hit http://us.archive.ubuntu.com precise/multiverse Sources
Hit http://us.archive.ubuntu.com precise/main amd64 Packages
Hit http://us.archive.ubuntu.com precise/restricted amd64 Packages
Hit http://us.archive.ubuntu.com precise/universe amd64 Packages
Hit http://us.archive.ubuntu.com precise/multiverse amd64 Packages
Hit http://us.archive.ubuntu.com precise/main i386 Packages
Hit http://us.archive.ubuntu.com precise/restricted i386 Packages
Hit http://us.archive.ubuntu.com precise/universe i386 Packages
Hit http://us.archive.ubuntu.com precise/multiverse i386 Packages
Hit http://us.archive.ubuntu.com precise/main TranslationIndex
Hit http://us.archive.ubuntu.com precise/multiverse TranslationIndex
Hit http://extras.ubuntu.com precise/main amd64 Packages
Hit http://extras.ubuntu.com precise/main i386 Packages
Hit http://security.ubuntu.com precise-security/multiverse i386 Packages
Ign http://ppa.launchpad.net precise Release
Hit http://us.archive.ubuntu.com precise/restricted TranslationIndex
Hit http://us.archive.ubuntu.com precise/universe TranslationIndex
Get:5 http://us.archive.ubuntu.com precise-updates/main Sources [198 kB]
Ign http://extras.ubuntu.com precise/main TranslationIndex
Hit http://security.ubuntu.com precise-security/main TranslationIndex
Hit http://security.ubuntu.com precise-security/multiverse TranslationIndex
Hit http://security.ubuntu.com precise-security/restricted TranslationIndex
Hit http://security.ubuntu.com precise-security/universe TranslationIndex
Hit http://ppa.launchpad.net precise Release
Hit http://ppa.launchpad.net precise/main Sources
Hit http://ppa.launchpad.net precise/main amd64 Packages
Hit http://ppa.launchpad.net precise/main i386 Packages
Ign http://ppa.launchpad.net precise/main TranslationIndex
Hit http://ppa.launchpad.net precise/main Sources
Get:6 http://us.archive.ubuntu.com precise-updates/restricted Sources [4,419 B]
Get:7 http://us.archive.ubuntu.com precise-updates/universe Sources [67.9 kB]
Hit http://security.ubuntu.com precise-security/main Translation-en
Hit http://ppa.launchpad.net precise/main amd64 Packages
Hit http://ppa.launchpad.net precise/main i386 Packages
Ign http://ppa.launchpad.net precise/main TranslationIndex
Ign http://ppa.launchpad.net precise/main TranslationIndex
Hit http://ppa.launchpad.net precise/main Sources
Hit http://ppa.launchpad.net precise/main amd64 Packages
Get:8 http://us.archive.ubuntu.com precise-updates/multiverse Sources [4,244 B]
Get:9 http://us.archive.ubuntu.com precise-updates/main amd64 Packages [449 kB]
Hit http://security.ubuntu.com precise-security/multiverse Translation-en
Hit http://security.ubuntu.com precise-security/restricted Translation-en
Hit http://ppa.launchpad.net precise/main i386 Packages
Ign http://ppa.launchpad.net precise/main TranslationIndex
Hit http://security.ubuntu.com precise-security/universe Translation-en
Get:10 http://us.archive.ubuntu.com precise-updates/restricted amd64 Packages [8,366 B]
Get:11 http://us.archive.ubuntu.com precise-updates/universe amd64 Packages [164 kB]
Err http://ppa.launchpad.net precise/main Sources
  404  Not Found
Err http://ppa.launchpad.net precise/main amd64 Packages
  404  Not Found
Err http://ppa.launchpad.net precise/main i386 Packages
  404  Not Found
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Get:12 http://us.archive.ubuntu.com precise-updates/multiverse amd64 Packages [8,671 B]
Get:13 http://us.archive.ubuntu.com precise-updates/main i386 Packages [457 kB]
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://extras.ubuntu.com precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://extras.ubuntu.com precise/main Translation-en
Get:14 http://us.archive.ubuntu.com precise-updates/restricted i386 Packages [8,374 B]
Get:15 http://us.archive.ubuntu.com precise-updates/universe i386 Packages [166 kB]
Get:16 http://us.archive.ubuntu.com precise-updates/multiverse i386 Packages [9,675 B]
Hit http://us.archive.ubuntu.com precise-updates/main TranslationIndex
Hit http://us.archive.ubuntu.com precise-updates/multiverse TranslationIndex
Hit http://us.archive.ubuntu.com precise-updates/restricted TranslationIndex
Hit http://us.archive.ubuntu.com precise-updates/universe TranslationIndex
Get:17 http://us.archive.ubuntu.com precise-backports/main Sources [2,422 B]
Get:18 http://us.archive.ubuntu.com precise-backports/restricted Sources [14 B]
Get:19 http://us.archive.ubuntu.com precise-backports/universe Sources [21.5 kB]
Get:20 http://us.archive.ubuntu.com precise-backports/multiverse Sources [2,669 B]
Get:21 http://us.archive.ubuntu.com precise-backports/main amd64 Packages [1,945 B]
Get:22 http://us.archive.ubuntu.com precise-backports/restricted amd64 Packages [14 B]
Get:23 http://us.archive.ubuntu.com precise-backports/universe amd64 Packages [22.1 kB]
Get:24 http://us.archive.ubuntu.com precise-backports/multiverse amd64 Packages [2,489 B]
Get:25 http://us.archive.ubuntu.com precise-backports/main i386 Packages [1,941 B]
Get:26 http://us.archive.ubuntu.com precise-backports/restricted i386 Packages [14 B]
Get:27 http://us.archive.ubuntu.com precise-backports/universe i386 Packages [22.1 kB]
Get:28 http://us.archive.ubuntu.com precise-backports/multiverse i386 Packages [2,504 B]
Hit http://us.archive.ubuntu.com precise-backports/main TranslationIndex
Hit http://us.archive.ubuntu.com precise-backports/multiverse TranslationIndex
Hit http://us.archive.ubuntu.com precise-backports/restricted TranslationIndex
Hit http://us.archive.ubuntu.com precise-backports/universe TranslationIndex
Hit http://us.archive.ubuntu.com precise/main Translation-en
Hit http://us.archive.ubuntu.com precise/multiverse Translation-en
Hit http://us.archive.ubuntu.com precise/restricted Translation-en
Hit http://us.archive.ubuntu.com precise/universe Translation-en
Ign http://plex.r.worldssl.net lucid/main Translation-en_US
Hit http://us.archive.ubuntu.com precise-updates/main Translation-en
Hit http://us.archive.ubuntu.com precise-updates/multiverse Translation-en
Hit http://us.archive.ubuntu.com precise-updates/restricted Translation-en
Hit http://us.archive.ubuntu.com precise-updates/universe Translation-en
Hit http://us.archive.ubuntu.com precise-backports/main Translation-en
Hit http://us.archive.ubuntu.com precise-backports/multiverse Translation-en
Hit http://us.archive.ubuntu.com precise-backports/restricted Translation-en
Hit http://us.archive.ubuntu.com precise-backports/universe Translation-en
Ign http://plex.r.worldssl.net lucid/main Translation-en
Fetched 1,724 kB in 4s (377 kB/s)
W: Failed to fetch http://ppa.launchpad.net/ui-toolkit/ppa/ubuntu/dists/precise/main/source/Sources  404  Not Found

W: Failed to fetch http://ppa.launchpad.net/ui-toolkit/ppa/ubuntu/dists/precise/main/binary-amd64/Packages  404  Not Found

W: Failed to fetch http://ppa.launchpad.net/ui-toolkit/ppa/ubuntu/dists/precise/main/binary-i386/Packages  404  Not Found

E: Some index files failed to download. They have been ignored, or old ones used instead.
servergod@servergod-desktop:~$