svimg: Bug: require() is trying to import an ES Module

Description:

In Sveltekit, after installing svimg (pnpm i svimg) as dependency, running pnpm dev does not work.

error when starting dev server:
Error [ERR_REQUIRE_ESM]: require() of ES Module /Users/-/-/node_modules/.pnpm/svelte@4.2.0/node_modules/svelte/src/runtime/ssr.js from /Users/-/-/node_modules/.pnpm/svimg@3.2.0/node_modules/svimg/dist/index.js not supported.
Instead change the require of ssr.js in /Users/-/-/node_modules/.pnpm/svimg@3.2.0/node_modules/svimg/dist/index.js to a dynamic import() which is available in all CommonJS modules.
    at Object.<anonymous> (/Users/-/-/node_modules/.pnpm/svimg@3.2.0/node_modules/svimg/dist/index.js:15:14)
 ELIFECYCLE  Command failed with exit code 1.

Versions

Node: 18.16.0
pnpm: 8.6.1

About this issue

Original URL
State: closed
Created 10 months ago
Reactions: 6
Comments: 16 (2 by maintainers)

Most upvoted comments

Thanks for the offer, but I think I’ve gotten the necessary changes completed. Current git is now ESM, hoping to do a release in the next day or so.

xiphux on Nov 9, 2023

The problem is that Svelte 4 moved to be pure ES modules, whereas svimg still builds CommonJS modules by default. (svimg does provide ES modules as well, but in a sort of nonstandard way from before Node settled on its standard ESM support)

I’m working on converting svimg to pure ESM. It’ll have to be a major version breaking change.

xiphux on Nov 8, 2023