Unable to build OpenSCD distribution

[ocou-aprico]

Describe the bug

Unable to build the OpenSCD project.
Snowpack fails to build the packages/distribution module.

Error message: Cannot find module '@openscd/open-scd/src/open-scd.js' from '/Users/xxxx/open-scd-0.37.1/packages/distribution'

To Reproduce

Steps to reproduce the behavior:

1. Download the open-scd-0.37.1 ZIP file from Open SCD Git location.
2. Unzip
3. Launch command: npm run build or npm run serve
4. Build failed with this error trace:

@openscd/distribution@0.0.1 build
snowpack build && workbox generateSW workbox-config.cjs && cp .nojekyll build/

[13:13:22] [snowpack] ! building files...
[13:13:22] [snowpack] Build Result Error: There was a problem with a file build result.
[13:13:22] [snowpack] Cannot find module '@openscd/open-scd/src/open-scd.js' from '/Users/xxx/open-scd-0.37.1/packages/distribution'
[13:13:22] [snowpack] Error: Cannot find module '@openscd/open-scd/src/open-scd.js' from '/Users/xxx/open-scd-0.37.1/packages/distribution'
at Function.resolveSync [as sync] (/Users/xxx/open-scd-0.37.1/node_modules/resolve/lib/sync.js:111:15)
at Object.resolveEntrypoint (/Users/xxx/open-scd-0.37.1/node_modules/esinstall/lib/entrypoints.js:149:59)
at PackageSourceLocal.resolvePackageImport (/Users/xxx/open-scd-0.37.1/node_modules/snowpack/lib/cjs/sources/local.js:619:40)
at resolveImport (/Users/xxx/open-scd-0.37.1/node_modules/snowpack/lib/cjs/build/file-builder.js:94:48)
...
npm error Lifecycle script build failed with error:
npm error code 1

Expected behavior

Build should work out of the box.

Desktop (please complete the following information):

• OS: Mac OS 14.6.1 (23G93) (Sonoma)
• node: v22.14.0
• npm: 10.9.2

[clepski]

To Reproduce

Steps to reproduce the behavior:

Download the open-scd-0.37.1 ZIP file from Open SCD Git location.
Unzip
Launch command: npm run build or npm run serve
Build failed with this error trace:

Hey there, can you try again with these steps

• npm install
• npm run build
• npm run start

In case you just care about the build output and not about the source, from version 0.38.1 on we are attaching the build output to the release, see https://github.com/openscd/open-scd/releases/tag/v0.38.1

[ocou-aprico]

Thanks for your swift answer.

Even with the last release (v0.38.1), and after executing npm install, npm run build failed with the same error.
The fact that Snowpack is deprecated and not more maintained (https://www.snowpack.dev) requires an older version of node.
Possible replacement of Snowpack: Vite (recommandation from Snowpack site).

[Tamriel]

I get the same error with node 20.19.0, npm 10.9.2 and Manjaro OS.
As you proposed, replacing Snowpack with Vite as in #1653 solved the build error.

[Tamriel]

The automatic build on github uses node 18. That works on my system as well.

[clepski]

FYI: the issue is caused by node 20.19 setting "require(esm) is now enabled by default" https://github.com/nodejs/node/releases/tag/v20.19.0

And a workaround is to disable it via NODE_OPTIONS, e.g. adjusting the build script to "build": "NODE_OPTIONS=--no-experimental-require-module npx nx run-many -t build --all"

This is just a workaround though and we intend to switch to Vite as a build tool