[Filmixyy]

Hello everyone!

I’m having trouble running an application that contains custom C++ code. I’m following the documentation and examples, but I still encounter errors during compilation.

Here’s how my main.cpp looks like:

 

#include "apimanager.h"
#include <QGuiApplication>
#include <QQmlContext>
#include <QQmlApplicationEngine>

#include <FelgoLiveClient>

int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);
    QQmlApplicationEngine engine;

    ApiManager apiManager;
    engine.rootContext()->setContextProperty("apiManager", &apiManager);

    const QUrl url(u"qrc:/UserLoginApiTest/main.qml"_qs);
    QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
                     &app, [url](QObject *obj, const QUrl &objUrl) {
        if (!obj && url == objUrl)
            QCoreApplication::exit(-1);
    }, Qt::QueuedConnection);
    engine.load(url);
    FelgoLiveClient liveClient(&engine);
    return app.exec();
}

Unfortunately, during compilation, I’m getting the following errors:

:-1: błąd: CMakeFiles/appUserLoginApiTest.dir/appUserLoginApiTest_autogen/mocs_compilation.cpp.obj: in function `QtPrivate::QMetaTypeForType<ApiManager>::getDefaultCtr()::{lambda(QtPrivate::QMetaTypeInterface const*, void*)#1}::operator()(QtPrivate::QMetaTypeInterface const*, void*) const’:

C:\Felgo\Felgo\mingw_64\include\QtCore\qmetatype.h:2299: błąd: undefined reference to `ApiManager::ApiManager(QObject*)’

:-1: Error: CMakeFiles/appUserLoginApiTest.dir/main.cpp.obj: in function `qMain(int, char**)’:

C:\Users\veltr\Desktop\UserLoginApiTest\main.cpp:15: błąd: undefined reference to `ApiManager::ApiManager(QObject*)’

 

I’ve just updated my CMakeLists.txt to include the necessary source files, but the problem persists. Additionally, I’ve included #include <FelgoLiveClient> and created a FelgoLiveClient object at the end of main.cpp, as suggested by the documentation.

Has anyone encountered a similar issue? Or does anyone have any ideas on how to resolve it?

Thanks in advance for any help!

[Filmixyy]

Now i;ve got the problem:

C:\Users\veltr\Desktop\UserLoginApiTest\CMakeLists.txt:9: błąd: By not providing “FindFelgoLive.cmake” in CMAKE_MODULE_PATH this project
has asked CMake to find a package configuration file provided by
“FelgoLive”, but CMake did not find one.

Could not find a package configuration file provided by “FelgoLive” with
any of the following names:

FelgoLiveConfig.cmake
felgolive-config.cmake

Add the installation prefix of “FelgoLive” to CMAKE_PREFIX_PATH or set
“FelgoLive_DIR” to a directory containing one of the above files. If
“FelgoLive” provides a separate development package or SDK, be sure it has
been installed.

[Filmixyy]

After successfully running the application locally without encountering any issues, I’m now exploring the possibility of running the application with its native C++ code on Felgo DevApp. However, I’ve noticed that when attempting to do so, the functionality on the phone doesn’t seem to work as expected.

 

If its not possible, do u know a way to test the whole app on ios phone directly (in a way that C++ native code works) ?

[GüntherFelgo Team]

Hi Filmixyy,

C++ code requires compilation and can not be reloaded with Felgo Live at runtime. This means that the pre-built Desktop Live Client and Mobile Dev App can not use any custom C++ code of your project.

However, you can still use Felgo Live by integrating the Felgo Live Module and compiling your project (which will then also include your custom C++ code). This is what the FelgoLiveClient code in the main.cpp is for. You can learn more here: https://felgo.com/doc/qml-hot-reload-felgo-live/#c-native-code-build-your-own-live-clients-with-the-felgo-live-module

You can create both a Desktop and Mobile client this way. For compiling Felgo projects on mobile platforms, you can follow the steps in the deployment guide: https://felgo.com/doc/felgo-deployment-ios/#add-felgo-packages-for-ios-platform

Best,
Günther