Actions must be used with server output.

import DontEditWarning from '~/components/DontEditWarning.astro'

ActionsWithoutServerOutputError: A server is required to create callable backend functions. To deploy routes to a server, add an adapter to your Astro config and configure your route for on-demand rendering.

What went wrong?

Your project must have a server output to create backend functions with Actions.

See Also:

On-demand rendering