QtWidgets/QAction: No such file or directory

Matti Aalto

I have done little program by Qt 5 four years ago, and compiled it without problems. Now I installed Qt 6.1.2, on Windows 7, and tried to compile and build. Otherwise everything seems to be allright but i got error message:
D:\Programming\Heating\SimplyHeatTransfer\ui_mainwindow.h:14: error: QtWidgets/QAction: No such file or directory
In file included from ..\SimplyHeatTransfer\mainwindow.cpp:2:
..\SimplyHeatTransfer\ui_mainwindow.h:14:10: fatal error: QtWidgets/QAction: No such file or directory
#include <QtWidgets/QAction>
and : -1: error: [Makefile.Release:608: release/mainwindow.o] Error 1

Thanks

SGaist

Hi and welcome to devnet,

A quick look at the Qt 6 QAction documentation shows it has move to QtGui.

You should update your include or rather drop the module part of the include.

JGBe

Hello and thank you,

Unfortunately this does not help, because ui_mainwindow.h is automatically generated in the build process.

Christian Ehrlicher

@JGBe said in QtWidgets/QAction: No such file or directory:

because ui_mainwindow.h is automatically generated in the build process.

What build system do you use? Make sure it's not picking up the wrong uic.exe from Qt5.

abcd999

Try deleting the ui_*.h file and try again