Error: Tracer is not a type in Quick.Particles(solved)

houmingc

Following the link below and i got compile error: Tracer is not a type

@

import QtQuick 2.0
import QtQuick.Particles 2.0

Rectangle {
id: root
width: 480; height: 160
color: "#1f1f1f"

ParticleSystem {
    id: particleSystem
}

Emitter {
    id: emitter
    anchors.centerIn: parent
    width: 160; height: 80
    system: particleSystem
    emitRate: 10
    lifeSpan: 1000
    lifeSpanVariation: 500
    size: 16
    endSize: 32
    Tracer { color: 'green' }            //Tracer is not a type
}

ImageParticle {
    source: "assets/particle.png"
    system: particleSystem
}

}

@

sierdzio

Indeed, this type is no part of Qt. I suspect it is a custom element created for the purpose of that book - to show the parent item (notice the green rectangle in the picture).

Please search the book for more information about it. Most probably it is something simple like:
@
// Tracer.qml
Rectangle {
anchors.fill: parent
}
@