# X_ISLAND_NOT_HYDRATED

## Means

a page renders an island nothing would boot

## Typical cause

three causes, and the `cause` says which. **(1)** the route states `hydrate: 'never'` beside an island — a contradiction the author wrote on purpose, since a route carrying one otherwise derives its own. **(2)** the `island()` call sits **below** the `defineRoute` that drains it, so the declaration had not happened yet. **(3)** the page was rendered outside a render that collects islands, so no hydration runtime is emitted and the chunk is never requested — this is the host's wiring, not the author's page

## Fix

(1) drop the explicit `hydrate: 'never'` and let it derive · (2) move the `island()` call above `defineRoute` · (3) render through `renderToHtml(tree, { islands: islandCollector({ file, hydrate }) })` so the island is counted, booted and budgeted

[Routes, render and budgets](/error-codes#routes-render-and-budgets)