QT5.15.0, MySQL database, msvc2015_64 and Windows 10

[Bonnie]

@Marcus-Barnet
That's a little weird, that path seems to be vs2015 compiler.
Check the Kits setting of QtCreator, make sure you select the right C/C++ compiler.
For vs2019_64 that should be 16.x.xxxxx.xx (amd64)

[Marcus Barnet]

This is my current configuration:

and I can select Visual C++ compiler16.6.30320.27 (amd64)

Should I switch to this other one?

[Bonnie]

@Marcus-Barnet said in QT5.15.0, MySQL database, msvc2015_64 and Windows 10:

and I can select Visual C++ compiler16.6.30320.27 (amd64)
Should I switch to this other one?

Yes, change both C and C++ to 16.6.30320.27 (amd64)

[Marcus Barnet]

I switched it, it compiled the first time my project and everything was OK.

I tried to compile it again and it gives me this error:

:-1: error: LNK1104: cannot open file 'release\PUMP.exe'

where PUMP.exe is my project executable.

I never had this problem before.

I also get this other warning:

yvals_core.h:462:2: error: STL1000: Unexpected compiler version, expected Clang 9.0.0 or newer.
pump.h:1:1: note: in file included from C:\Qt\Examples\Qt-5.15.0\PUMP\pump.h:1:
pump.h:4:10: note: in file included from C:\Qt\Examples\Qt-5.15.0\PUMP\pump.h:4:
QMainWindow:1:10: note: in file included from C:\Qt\5.15.0\msvc2019_64\include\QtWidgets\QMainWindow:1:
qmainwindow.h:43:10: note: in file included from C:\Qt\5.15.0\msvc2019_64\include\QtWidgets\qmainwindow.h:43:
qtwidgetsglobal.h:43:10: note: in file included from C:\Qt\5.15.0\msvc2019_64\include\QtWidgets\qtwidgetsglobal.h:43:
qtguiglobal.h:43:10: note: in file included from C:\Qt\5.15.0\msvc2019_64\include\QtGui\qtguiglobal.h:43:
qglobal.h:45:12: note: in file included from C:\Qt\5.15.0\msvc2019_64\include\QtCore\qglobal.h:45:
type_traits:9:10: note: in file included from C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.26.28801\include\type_traits:9:

pump.h is very simple:

#ifndef PUMP_H
#define PUMP_H

#include <QMainWindow>
#include <QtSql>
#include <QSqlDatabase>

QT_BEGIN_NAMESPACE
namespace Ui { class Pump; }
QT_END_NAMESPACE

class Pump : public QMainWindow
{
    Q_OBJECT

public:
    Pump(QWidget *parent = nullptr);
    ~Pump();

private slots:
    void on_pushButton_clicked();

private:
    Ui::Pump *ui;
};
#endif // PUMP_H

[Marcus Barnet]

PUMP.exe is created during the first compilation (I can run it) and then when I click on build again, it disappears and I get that error.

[Bonnie]

Do you use shadow build? Delete your build folder and try again.

[Marcus Barnet]

@Bonnie said in QT5.15.0, MySQL database, msvc2015_64 and Windows 10:

Do you use shadow build? Delete your build folder and try again.

Thank you for your support, everything works fine now!

@hskoglund: thank you to you, too, for your support!