Component is Missing a Required Property
Component is Missing a Required Property
What happened?
The required property of a component was not set.
Why is this bad?
QML applications where components miss required properties will misbehave: they will not start at all if a missing required property is detected statically. Dynamically created components with missing required properties will not be created at runtime: they will be null instead.
Example
import QtQuick Item { component RepeatMe: Item { required property int index; required property int helloWorld; } RepeatMe {} // not ok: required properties index and helloWorld not set Repeater { model: 10 RepeatMe {} // not ok: required property index set by Repeater, but not helloWorld } }
You can fix this warning by setting the required properties
import QtQuick Item { component RepeatMe: Item { required property int index; required property int helloWorld; } RepeatMe { index: 0 helloWorld: 42 } // ok: all required properties were set Repeater { model: 10 RepeatMe { helloWorld: index * 2 + 1 } // ok: all required properties were set: index by the Repeater and helloWorld by the user } }