QSQLITE driver not loaded

[ExorcistInc]

Hi!
I have problem with deployed application. It could not create and access sqlite database, with next messages in debugger:

QSqlDatabase: QSQLITE driver not loaded
QSqlDatabase: available drivers: QSQLITE QMYSQL QMYSQL3 QODBC QODBC3 QPSQL QPSQL7
bool AnisStorage::setupDb() Error: "Driver not loaded Driver not loaded"
QSqlQuery::exec: database not open

And here is code example:

    m_dbConnection = QSqlDatabase::addDatabase("QSQLITE");
    // m_dbName = D:/QtBuilds/kvant-cpm-release/cpmStorage.sqlite
    m_dbConnection.setDatabaseName(m_dbName); 
    const bool isDbOpened = m_dbConnection.open();

    if(!isDbOpened) {
        qDebug() << Q_FUNC_INFO << "Error:" << m_dbConnection.lastError().text();
        return false;
    }

I am using Qt 5.4.2, MinGW 4.9.2 and have "sqldrivers" dir with Qt SQL drivers in application folder.

How to fix this?)

[CharlieG]

Hello

I have the same problem. I use Qt 5.5 on Archlinux.

This my codes:
storage.h:

#ifndef STORAGE_H
#define STORAGE_H

#include <QObject>
#include <QSqlDatabase>
#include <QDebug>
#include <QSqlError>
#include <QSqlDriver>

class QString;



class Storage : public QObject
{
    Q_OBJECT
public:
    explicit Storage(QObject *parent = 0);
    Q_INVOKABLE bool open();

signals:

public slots:

private:
    QSqlDatabase* m_sqlDatabase;

};

#endif // STORAGE_H

storage.cpp:

#include "storage.h"

Storage::Storage(QObject *parent) : QObject(parent)
{
    m_sqlDatabase = new QSqlDatabase();

}

bool Storage::open()
{

    qDebug() << QSqlDatabase::drivers();
    qDebug() << QSqlDatabase::isDriverAvailable("QSQLITE3");
    m_sqlDatabase->addDatabase("QSQLITE3", "SQLITE");
    m_sqlDatabase->setDatabaseName("myBdd");

    if (m_sqlDatabase->open()){
        return true;
    }

    else{
        qDebug() << m_sqlDatabase->lastError();
        return false;
    }
}

and my .pro

unix:LIBS += -lpq -L"/usr/lib/qt/plugins/sqldrivers"

As ExorcistInc, I have this messages with qDebug() :
("QIBASE", "QSQLITE", "QSQLITE3", "QMYSQL", "QMYSQL3", "QODBC", "QODBC3", "QPSQL", "QPSQL7")
true
QSqlError("", "Driver not loaded", "Driver not loaded")

Have I include other file ?

Thank you in advance

Charlie

[ExorcistInc]

Well, I figured out, that in my case it was stupid mistake of using MSVC windeployqt with MinGW compiled app.