E0102: JSX needs a target

JSX renders through a target package: the one that declares VukaJSX, usually github.com/vuka-lang/ui/v2. The file has JSX and imports no target, or the target it imports doesn't load.

Wrong

package pages

func Hello() ui.Node {
	return <p>Hello</p>
}

Right

package pages

import "github.com/vuka-lang/ui/v2"

func Hello() ui.Node {
	return <p>Hello</p>
}