Completely remove Qt environment?

[bloodviper9000]

How to completely remove Qt environment?

I installed Qt Creator Integrated Development from the Ubuntu Software Center,then I compiled and installed Qt 4.8.6 .There were few errors when I try to compile an Application.

I Uninstalled / Removed via the Ubuntu Software Center.

But when I tried to install QT 5.3 I can see the Qt 4.8 kit and recently accessed files.

What should I do if I want to completely remove the Qt in my system? I want to uninstall all the 4.8.6 and , then try to reinstall the 5.3.

[andreyc]

On Linux QtCreator keeps its configuration in
@ $HOME/.config/QtProject @

Move it to somewhere and start qtcreator again.