In slightly more detail, Qt Creator should have a group of icons including the "hammer" icon. If you hover the mouse over those icons, you can see tooltips describing their functions; the hammer's tooltip is "build project", the green triangle is "run project", the green triangle with a ladybug is "start debugging", etc.

The "build project" won't create a deb, because it doesn't need to do so. The "run project" will create one, if you are deploying to an N9 (whether simulated or real). But, you will need to set up the deployment details (accessed by clicking the "Projects" icon in Qt Creator) before that will work.

For more details, here's a link to Qt documentation on building & running projects:

http://qt-project.org/doc/qtcreator-...g-running.html