Cannot destructure property `serverRuntimeConfig` of 'undefined' or 'null'

Can serverRuntimeConfig be used when in serverless mode? The following code:

import getConfig from 'next/config';
const { serverRuntimeConfig } = getConfig();

returns

Cannot destructure property serverRuntimeConfig of 'undefined' or 'null'

For publicRuntimeConfig there is an error saying that it can’t be used but not for that one.

[rnacken]

If you are using a custom server, be sure to use getConfig only after initialisation of the Next app:

import getConfig from 'next/config';

console.log(getConfig()) // undefined - no config initialised yet
const app = next({ ... })
console.log(getConfig()) // this works

[Timer]

When deploying to ZEIT Now the target is forced to serverless – you cannot deploy a server Next.js app to ZEIT Now!