liuxg@liuxg:~$ sudo add-apt-repository ppa:ubuntu-sdk-team/ppa
Ubuntu SDK Release PPA for Ubuntu 14.04 LTS.
Upgrade with:
sudo add-apt-repository ppa:ubuntu-sdk-team/ppa && sudo apt update && sudo apt dist-upgrade && sudo apt install ubuntu-sdk
== Ubuntu 14.04 LTS ==
Ubuntu 14.04 LTS had Qt 5.x, Ubuntu UI Toolkit and SDK updates during its main development cycle. This PPA offers post-release SDK updates, including Qt Creator & Ubuntu plugins updates. The emulator included (or a mobile device attached to the computer) makes it possible to test apps in the very latest Ubuntu phone/tablet environment.
== Earlier Ubuntu versions ==
Ubuntu 13.10 as a non-LTS release reached it's end of support in July 2014. Please upgrade to 14.04 LTS as soon as possible.
Ubuntu 12.04 LTS has older versions of packages offered in this PPA, but the SDK support has moved to the new 14.04 LTS release. It's however usable for example for general Qt 5 usage. Upgrades from 12.04 LTS to 14.04 LTS started to be offered via Software Updates in August 2014.
GENERAL NOTES
-------------
1. Qt4 and Qt5 developer tools are co-installable thanks to the qtchooser tool. See 'man qtchooser' for more information.
2. The packaging is done at Debian (http://anonscm.debian.org/gitweb/ (pkg-kde/qt)) and https://code.launchpad.net/~kubuntu-packagers (for Ubuntu specific changes).
More info: https://launchpad.net/~ubuntu-sdk-team/+archive/ubuntu/ppa
Press [ENTER] to continue or ctrl-c to cancel adding it
gpg: keyring `/tmp/tmpp1o0k4a4/secring.gpg' created
gpg: keyring `/tmp/tmpp1o0k4a4/pubring.gpg' created
gpg: requesting key C7122F9B from hkp server keyserver.ubuntu.com
gpg: /tmp/tmpp1o0k4a4/trustdb.gpg: trustdb created
gpg: key C7122F9B: public key "Launchpad PPA for Ubuntu SDK team" imported
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
OK
liuxg@liuxg:~$ sudo apt-get build-dep ubuntu-sdk
Reading package lists... Done
Building dependency tree
Reading state information... Done
Picking 'ubuntu-touch-meta' as source package instead of 'ubuntu-sdk'
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
liuxg@liuxg:~$