Can't use `rollup.config.mjs`

[Florian Krauthan]

I wrote my rollup config in module format (hence used rollup.config.mjs as the file name). This works perfectly fine for rollup however when using nollup it complaints about the first import already import commonjs from '@rollup/plugin-commonjs'; and shows on console Invalid URL: @rollup/plugin-commonjs.

[Wouter van Vliet]

I've got the same problem, but was able to work around by using a .cjs config file with an async function as default export.

for example:

module.exports = async function() {
 const { generateBundleConfig } = await import('./my-own-module')
 return generateBundleConfig()
}