QSqlDatabase: an instance of QCoreApplication is required for loading driver plugins!

[qlands]

Hi,

I having the said problem in a command line application, however I'm getting the error in Windows (mingw) and not in Linux.

The code in the main is:

#include <QObject>
#include "mydbconn.h"
#include <QSqlDatabase>
#include <QSqlQuery>
#include <QSqlError>
#include <QDir>
#include <QTextStream>
#include <tclap/CmdLine.h>
#include <QtCore/QCoreApplication>
 
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
...
 
 mydb = QSqlDatabase::addDatabase("QMYSQL","connection1");
        mydb.setHostName(host);
        mydb.setPort(port.toInt());
        if (!userName.isEmpty())
           mydb.setUserName(userName);
        if (!password.isEmpty())
           mydb.setPassword(password);
 
 
 
    mydb.setDatabaseName(dbName);
 
    mydb.open();
 
    // a.exec() Not execute the event loop. All the processes are in the main
}

#include <QObject>
#include "mydbconn.h"
#include <QSqlDatabase>
#include <QSqlQuery>
#include <QSqlError>
#include <QDir>
#include <QTextStream>
#include <tclap/CmdLine.h>
#include <QtCore/QCoreApplication>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
...

 mydb = QSqlDatabase::addDatabase("QMYSQL","connection1");
        mydb.setHostName(host);
        mydb.setPort(port.toInt());
        if (!userName.isEmpty())
           mydb.setUserName(userName);
        if (!password.isEmpty())
           mydb.setPassword(password);
    


    mydb.setDatabaseName(dbName);

    mydb.open();

    // a.exec() Not execute the event loop. All the processes are in the main
}

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Any idea how to fix the problem?

Thanks,
Carlos.

---

Added after 1 7 minutes:

Ups... it gets fixed with

#include <QtCore/QCoreApplication>
QCoreApplication a(argc, argv);


I was running another application that did not have those lines... All works fine now