# X_ROUTE_MODE_INVALID

## Means

render mode not allowed on this surface, or not a render mode at all

## Typical cause

`stream` on a `site/` route; `render: 'spa'`, deleted in 6.0.0

## Fix

use `static`, `isr` or `ssr` in `site/`; `stream` or `ssr` in `app/`. For `spa`, the migration is one line — `render: 'ssr'` — in [Upgrading](/upgrading)

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