Qt Creator 5.2.1 does not start

Hi, I have installed Qt 5 using this guide https://qt-project.org/doc/qt-5.1/qtdoc/android-support.html; when I start Qt Creator, from command line, I get this error /Qt5.2.1/Tools/QtCreator/bin$ ./qtcreator Segmentation fault (core dumped) I’m on Ubuntu 13.10 ×86, any help are apreciated