QQmlEngine symbols not found

Question

I'm getting a linker error that a whole host of symbols including QQmlEngine and QQmlComponent constructors are undefined, from the main.cpp:

#include <QCoreApplication>
#include <QtQml/QQmlEngine>
#include <QtQml/QQmlComponent>
#include <QtQml/QQmlContext>

int main(int argc, char* argv[]){
    QCoreApplication app(argc, argv);
    QQmlEngine eng;

    QQmlComponent component(&eng, QUrl::fromLocalFile("app.qml"));
    component.create();
}

I've run qmake -project, and rebuilt all.

Browsing other questions, and the docs, it seems the include should be QQmlEngine, but this is not found, and QtQml/QQmlEngine is. Are they one in the same, or is that the problem?

I'll edit the actual error output in in the morning, no WiFi at home at the moment! — OJFord, Oct 23 '14 at 02:04

score 3 · Answer 1 · answered Oct 23 '14 at 03:15

3

Add the following to your .pro file:

QT += qml quick

answered Oct 23 '14 at 03:15

Oleg Shparber

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Ah that got it, thanks! Seems like 5 settings for every change sometimes! Now I'm getting 'component not ready' though, not sure if related? – OJFord Oct 23 '14 at 15:11

QQmlEngine symbols not found

1 Answers1