E0309: An island's attributes don't fit
An island tag's attributes are checked against the component's props (its @ui.Island struct, or the props read from its file): an unknown attribute, a value of the wrong type or outside a string union, or a function prop given something other than a function.
Wrong
vuka
// Picker.vue: defineProps<{ title: string; kind: 'day' | 'week' }>()
<Picker titel="Dates" kind="month" />Right
vuka
<Picker title="Dates" kind="week" />