# Cannot use Server Islands without an adapter.

> **NoAdapterInstalledServerIslands**: Cannot use server islands without an adapter. Please install and configure the appropriate server adapter for your final deployment.

## What went wrong?

[Section titled “What went wrong?”](#what-went-wrong)

To use server islands, the same constraints exist as for sever-side rendering, so an adapter is needed.

**See Also:**

* [On-demand Rendering](/en/guides/on-demand-rendering/)