[Solved] Problem with UPDATE query (QSQLITE)

Hi, This is my code:       reference=ui->reference->text();     pseudo=ui->label_3->text();     QSqlQuery qry("QSQLITE");     qry.prepare("UPDATE candidates SET reference= :areference WHERE pseudo= :apseudo;");     qry.bindValue(":areference",reference);     qry.bindValue(":apseudo",pseudo);     if (!qry.exec())       {              qDebug() << qry.lastError();              qDebug()<< qry.executedQuery();       } When running, I get these messages: *QSqlError(”“, “Parameter count mismatch”, “”) “UPDATE candidates SET reference= ? WHERE pseudo= ?;” * Can someone help me and thank you.