QQmlApplicationEngine failed to load component

[imxande]

Hi fam,

So I have encounted a problem for a particular personal project that I am setting up. Basically, this has never happened in other projects when I try to load QML. I have always done it this way and QQmlApplicationEngine always loads the module but today is a no no. Here is what I got also far, basic setup:
This is my main.cpp file:

#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QDebug>

int main(int argc, char *argv[]) {
  // create application
  QGuiApplication app(argc, argv);

  // engine
  QQmlApplicationEngine engine;

  qDebug() << "Import paths:" << engine.importPathList();

  // load QML
  engine.loadFromModule("smartlights", "Main");

  return app.exec();
}

This is my cmake file:

cmake_minimum_required(VERSION 3.28)

project(nitenite VERSION 1.0.0 LANGUAGES CXX)

find_package(Qt6 REQUIRED COMPONENTS Quick)

qt_standard_project_setup(REQUIRES 6.8)


set(CMAKE_STANDARD_CXX 20)
set(CMAKE_STANDARD_CXX_REQUIRED ON)

qt_add_executable(${PROJECT_NAME}
  src/main.cpp
)

qt_add_qml_module(smartLightsModule
  URI smartlights
  VERSION 1.0
  QML_FILES qml/smartlights/Main.qml
)
target_link_libraries(${PROJECT_NAME} PRIVATE Qt6::Quick)

Here simplified file structure:

And finally the infamous error:

First time experiencing this error, I have always load QML into this type of application this way, and it always works.
Note that if I add engine.addImportPath("qt/qml") to my main.cpp file the engine finds the module but I never had to do this before and want to understand what is really happening.

In any case thank you all in advance, please help!!

[GrecKo]

Your executable is not linked to your QML module.

[JKSH]

@imxande said in QQmlApplicationEngine failed to load component:

want to understand what is really happening.

One way to start doing this is to inspect your embedded resources:

QDirIterator qrc(":", QDirIterator::Subdirectories);
while(qrc.hasNext())
    qDebug() << qrc.next();

Note that if I add engine.addImportPath("qt/qml") to my main.cpp file the engine finds the module

What does engine.importPathList() produce after you do that?