What do you mean by: don't do anything, you should see something in the compiler / application ouput panes when you hit the run button from Qt Creator.
are you able to run another example ? (not qtmultimedia)
If your goal is to experiment with the examples I advice to do that using Qt Creator. There you will have more feedback from the system, you can debug and so on.
Yes the other examples are running this way. Is there any installation problem?
I installed them using sudo apt-get install qtmobility-examples..
And I am trying to do it in At side by side..just wanted to experiment with premade samples.
If you are starting with Qt, I recommend using Qt 5. Qt 4.8 is rather old.
Also, Ubuntu modified the Qt 4.8 packages (which I think caused more trouble than it's worth). The Qt 4.8 packages in the Ubuntu repository are different from standard packages.
I used to install the Qt package from Ubuntu to get the dependences right. Then i downloaded the installation packages from the Qt site, see download link on top of this page.
That way you can experiment with the latest toys. ;-)