CMake errors when building Qt simple app.

Hrant

I want to use Sublime for developing in Qt. So i decided to pick CMake for this job.
here is what i've done so far. (and here is the tutorial I tried)

Folder structure

.
├── build
├── CMakeLists.txt
└── src
    ├── CMakeLists.txt
    ├── main.cpp
    ├── main.qml
    └── main.qrc

main.cpp

#include <QApplication>
#include <QQmlApplicationEngine>

int main(int argc, char** argv)
{
    QApplication app(argc, argv);
    QQmlApplicationEngine engine;

    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
 
    return app.exec();
}

main.qml

import QtQuick 2.0
import QtQuick.Controls 1.0

ApplicationWindow
{
    visible: true
    width: 640
    height: 480
    title: qsTr("Minimal Qml")
}

main.qrc

<RCC>
    <qresource prefix="/">
        <file>main.qml</file>
    </qresource>
</RCC>

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)

find_package(Qt5 COMPONENTS Widgets Qml Quick REQUIRED)

add_subdirectory(src)

src/CMakeLists.txt

include_directories(${Qt5Widgets_INCLUDE_DIRS} ${QtQml_INCLUDE_DIRS})

add_definitions(${Qt5Widgets_DEFINITIONS} ${QtQml_DEFINITIONS} ${${Qt5Quick_DEFINITIONS}})
qt5_add_resources(QT_RESOURCES qml.qrc)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${Qt5Widgets_EXECUTABLE_COMPILE_FLAGS}")
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
set(CMAKE_AUTOUIC ON)
set(PROJECT "app")

project(${PROJECT})
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Werror -std=c++11 -fstrict-aliasing -pedantic-errors -pedantic -Wno-deprecated-declarations -Wno-unused-variable")

if(NOT DEFINED HEADERS)
    file(GLOB HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/*.h)
endif()
if(NOT DEFINED SOURCES)
    file(GLOB SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
endif()

source_group("Header Files" FILES ${HEADERS})
source_group("Source Files" FILES ${SOURCES})

add_executable(${PROJECT} ${HEADERS} ${SOURCES} ${QT_RESOURCES})
target_link_libraries(${PROJECT}
    Qt5::Widgets
    Qt5::Qml
    Qt5::Quick
    )

and here is how I use cmake in terminal

cd build
cmake ..
make
./app #i would call this command if i have had no errors

after doing make command, terminal shows me following erros>

errors

Scanning dependencies of target MinimalQml_autogen
[ 20%] Automatic MOC and UIC for target MinimalQml
[ 20%] Built target MinimalQml_autogen
Scanning dependencies of target MinimalQml
[ 40%] Building CXX object src/CMakeFiles/MinimalQml.dir/main.cpp.o
make[2]: *** No rule to make target 'src/qrc_qml.cpp', needed by 'src/CMakeFiles/MinimalQml.dir/qrc_qml.cpp.o'. Stop.
make[1]: *** [CMakeFiles/Makefile2:92: src/CMakeFiles/MinimalQml.dir/all] Error 2
make: *** [Makefile:84: all] Error 2

Hrant

Found It! Had to change the folder structure a.k.a. main.qrc to qml.qrc