My compiler can't find QtSql

[codymarc]

Hi, I'm very newbie, I learn to program in C++ too many years ago, so I'm a little stock here. I'm copying the code from Sqlbrowser demo. So, I need help with this issue.

This is my code:

#include <QtSql>
#include <QtCore>
#include <QtGui>
#include "browser.h"

#include <QtSql>
#include <QtCore>
#include <QtGui>
#include "browser.h"

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And I have a lot of error during the compiling, because the compiler can't find QtSql file, but this file is into the C:\Archiv...\...qt\include\QtSql\

Thanks