Installation of QT4 and KDevelop on ubuntu linux systems
First you have to add the repository of kdevelop deb http://ftp5.gwdg.de/pub/opensuse/repositories/home:/amilcarlucas/xUbuntu_8.04/ ./ into your sources.list file. Then you can install the new KDevelop after updating the package list (i.e. run apt-get update and install with apt-get install kdevelop ). After you have to install the automake. sudo apt-get install automake And now you are ready for installation the QT4 libraries sudo apt-get install libqt4-core libqt4-dev libqt4-gui qt4-dev-tools qt4-designer The next step is to connect the KDevelop the QT4. So you have to open kdevelop and select Project -> Project Options -> C++ Support -> Qt Options then paste to " QMake binary " the qmake path " /usr/bin/qmake-qt4 " and to the " Designer Binary " the designer path " /usr/bin/designer-qt4 ". You are ready for building your first "Hello World" application using Qt.