Qt。 'Makefile' 需要在 '.pro' 中创建目标的规则。 停止

Question

So, I wrote a code for a Pythagoras calculator app in Qt creator, but when I try to compile it I get the following error message:

:-1: error: No rule to make target '../CalculadoradePitágoras16062022/CalculadoradePitágoras16062022.pro', needed by 'Makefile'.  Stop.

My pro. file looks like this:

QT       += core gui                                              
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets                                          
TARGET = CalculadoradePitágoras16062022                                                
TEMPLATE = app                                                                          
SOURCES += main.cpp\
           widget.cpp                                                                   
HEADERS  += widget.h                                                                      
FORMS    += widget.ui                                                                 
RESOURCES += \
            Resources.qrc                                                              
RC_ICONS = IconoP070720222.ico

By the way, I´ve tried to turn off the shadowbuild checkbox but I get another error:

:-1: error: No rule to make target '../../../../../../../Qt/Qt5.2.0/5.2.0/mingw48_32/mkspecs/modules/qt_lib_designercomponents_private.pri', needed by 'Makefile'.  Stop.

What should I do in this case?

Answer 1

I would personally use cmake for any new Qt projects launched, going forward. This is because Qt has chosen cmake to be the buildsystem for Qt.

Whilst in essence, you can use something else, it is still reasonable to remain consistent with that.

CMakeLists.txt

set(CMAKE_AUTORCC ON)
find_package(Qt5 5.15 REQUIRED COMPONENTS Core Widgets)
add_executable(QtResource Resources.qrc main.cpp widget.cpp)
target_link_libraries(QtResource Qt::Widgets)

main.cpp

#include <QApplication>                                                     
                                                                                
int main(int argc, char *argv[])                                                
{                                                                               
  QApplication app(argc, argv);                                             
  // Do something with the resource.                                            
  return app.exec();                                                            
}

application.qrc

<RCC>
    <qresource prefix="/" >
        <file>IconoP070720222.ico</file>
    </qresource>
</RCC>