C++ 98 SQL error "what() :the connection is in autocommit mode"

#include "newForm.h"
#include <cstdlib>
#include <stdio.h>

#include <string.h>
#include <string>

using namespace std;
#include <stdlib.h>
#include <iostream>
#include <fstream>


#include <sstream>
#include <istream>
#include <stdexcept>
#include <istream>
#include <qimage>
#include <qpixmap>

#include <mysql mysql.h="">
#include <cppconn driver.h="">
#include <cppconn exception.h="">
#include <cppconn connection.h="">
#include <cppconn resultset.h="">
#include <cppconn statement.h="">
#include <cppconn prepared_statement.h="">
#include <qgraphicspixmapitem>


using namespace sql;     // <---- add here

sql::Driver * driver;
sql::Connection *con;
sql::Statement *stmt;
sql::ResultSet *res;
sql::PreparedStatement *prep_stmt;

int counter = 1;

newForm::newForm() {
    widget.setupUi(this);


    driver = get_driver_instance();
    con = driver->connect("localhost","","");
    con->setAutoCommit(0);
    con->setSchema("BitmapIMGSchema");  -->error

con->setSchema("BitmapIMGSchema");  -->error

Quote:

terminate called after throwing an instance of 'sql:InvalidArgumantException'

what(): The connection is in autoCommit mode.