Qt Creator Plain C++ Project won't run/debug...

[jiapei100]

Hi, all:

Environment:
OS: Ubuntu 12.04
Qt: Qt Creator 2.4.1
Based on Qt 4.8.0 (32 bit)

Built on Mar 21 2012 at 23:05:03


As titled:
After having created a plain C++ project, with a default Hello World in main.cpp

#include <iostream>
 
using namespace std;
 
int main()
{
    cout << "Hello World!" << endl;
    return 0;
}

#include <iostream>

using namespace std;

int main()
{
    cout << "Hello World!" << endl;
    return 0;
}

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It's so strange that I'm not able to debug/run this application after building.
The .pro file is as simple as:

TEMPLATE = app
CONFIG += console
CONFIG -= qt
 
SOURCES += main.cpp

TEMPLATE = app
CONFIG += console
CONFIG -= qt

SOURCES += main.cpp

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Whenever I tried to run it from within Qt Creator IDE, a Terminal jumped out and the program hangs on the screen and the program is not able to run at all. Did anybody else meet the same problem?

cheers
Pei