I'm attempting to use rollup for the first time, and I've encountered errors that look like "Error: 'foo' is not exported by node_modules/fast-json-patch/src/json-patch-duplex.js" a few times. The advice suggested by the error message has generally worked.

https://github.com/rollup/rollup/wiki/Troubleshooting#name-is-not-exported-by-module

However, what do I do when the object I want is the default export from the module? I've tried:

namedExports: {
    "node_modules/fast-json-patch/src/json-patch-duplex.js": ["default"]
}

Though I wan't really expecting the above to work (what if the module exported a non-default property called "default"?) and it didn't. I'm not sure what to do.

I'm sorry if this turns out to be a stupid question. All the previous "modern" javascript I've done has been server side. I'm finding all the seemingly countless module systems extremely confusing.