SubDirs Project Widget not found on compilation

[sandro4912]

I try to convert a project into a subdirs project to add unit tests.

My structure looks like this:

The minefield-src.pri looks like this:

SOURCES += \
    ../src/besttimesdialog.cpp \
    ../src/cell.cpp \
    ../src/cellinputhandler.cpp \
    ../src/converttograyscale.cpp \
    ../src/customfielddialog.cpp \
    ../src/game.cpp \
    ../src/gamesettings.cpp \
    ../src/lcddisplay.cpp \
    ../src/mainwindow.cpp \
    ../src/minefield.cpp \
    ../src/smileypushbutton.cpp \
    ../src/windialog.cpp

HEADERS += \
    ../src/besttimesdialog.h \
    ../src/cell.h \
    ../src/cellinputhandler.h \
    ../src/converttograyscale.h \
    ../src/customfielddialog.h \
    ../src/game.h \
    ../src/gamesettings.h \
    ../src/lcddisplay.h \
    ../src/mainwindow.h \
    ../src/minefield.h \
    ../src/smileypushbutton.h \
    ../src/windialog.h


FORMS += \
    ../src/besttimesdialog.ui \
    ../src/customfielddialog.ui \
    ../src/windialog.ui

 RESOURCES += \
    ../src/minesweeper.qrc

The minefield.pro:

TEMPLATE = subdirs

SUBDIRS += \
    src \
    tests

OTHER_FILES = minefield-src.pri

The src.pro:

QT += widgets
CONFIG += c++17

TARGET = src
TEMPLATE = app

include(../minefield-src.pri)

SOURCES += main.cpp

The tests.pro:

QT += testlib
QT += gui
CONFIG += C++17 console

TEMPLATE = app

include (../minefield-src.pri)

APP_PATH = ../src
INCLUDEPATH += $$APP_PATH
DEPENDPATH += $$APP_PATH

First of all i see all the source files from the pri which should be a good sign.

But when i compile i get errors like this:

I wonder whats the Issue here? `widgets``is set in the pro files of the subprojects.

The code successfully compiled before before I rearranged to have the project in a subdirs project with a test project

[SGaist]

Hi,

You are missing

QT += widgets

In your test .pro file.

[sandro4912]

After adding it the error is solved. However now I get this Issue:

//...
#include <algorithm>


//...


void LcdDisplay::setDisplayValue(int value)
{
    constexpr auto minDisplayValue = -99;
    constexpr auto maxDisplayValue = 999;

    mValue = std::clamp(value, minDisplayValue, maxDisplayValue);

//...

This is very weired. If you look at the post above i say in both the pro files c++17. So whats the issue here?

[Christian Ehrlicher]

As you can see there is no compiler flag to use c++17 so your config line is wrong - I would guess it's 'c++17', not 'C++17'.

[sandro4912]

you are right sometime you don't see the forest because there are to many trees ;/

[Pablo J. Rogina]

@sandro4912 is your issue solved? if so please don't forget to mark your post as such! Thanks