How to output a single line in Qt Creator 2.4.1 ?

[fen1ksss]

I'm using Qt Creator 2.4.1 based on Qt 4.7.4

I've made a simple "Hello, world" program

@int main()
{
std::cout << "Hello World!" << std::endl;
}@

But when I run it, nothing appears in the Application output, how to enable it?

[sierdzio]

Either run in terminal (there is a checkbox in Projects pane) or use qDebug().

[fen1ksss]

Where exactly this checkbox in the Project pane? right click?

[dotK]

In the left, you have a bar, go to "Project">>"Run Settings" and you will see a checkbox with a text "Run on Terminal"...

I think is this.

[fen1ksss]

I have added /Applications/Utilities/Terminal.app to the Preferences -> Environment,

in “Project”>>“Run Settings” the checkbox was already checked,

now on the left side line "Launching" freezes for a long time with a grey color
and 4 Terminal windows appear on the back screen. What is wrong?

[dotK]

Try right click on project and clean project, after this, do a qmake, rebuild and build, and try run application again. I never see this, can you send the complete code of your application?