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Issue with upgrade from 1.50.1 to 1.50.2

See original GitHub issue

Hi, just reporting that the latest version when msgpack was replaced with msgpackr, we now get this error when trying to run our project. We use the esm module (https://www.npmjs.com/package/esm) to load our project.

Error [ERR_REQUIRE_ESM]: Must use import to load ES Module: node_modules/msgpackr/dist/index.js
require() of ES modules is not supported.

Issue Analytics

State:
Created 2 years ago
Reactions:2
Comments:14 (9 by maintainers)

Top GitHub Comments

2reactions

manastcommented, Oct 15, 2021

@manast yeah, that’s something we’ll look into doing. This isn’t the first time a package has done that, though it was a bit surprising to see a breaking change like this on a patch update.

Well, it was not supposed to be a breaking change, in fact before this was merged we got the maintainer of msgpackr to release a change that allowed msgpackr to support node 10 as well. Maybe somebody that knows better can give us a hint on what changes to make in msgpackr so that this issue goes away.

1reaction

manastcommented, Oct 14, 2021

The irony here is that msgpackr tries to be compatible with both pre node 12 (i.e. no es6 module support) and post 12, still the polyfill (ESM) that tries to solve this problem in a generic way fails when it shouldn’t do anything as it is already working!