To get the Rescript vscode plugin working on Ubuntu Linux I needed to manually install the package

[JasoonS]

To get this plugin to work on my ubuntu linux machine, I needed to run pnpm add -D @rescript/linux-x64@12.0.0-beta.10 manually. Once I did that v1.64 of the plugin worked perfectly.

I have no problem running Rescript so I'm not sure what the issue is. Maybe it is also a PNPM issue where the symlink is added incorrectly unless it is explicitly installed.

I haven't dug deeper and unfortunately I need to move on with work so I hope this is enough information to help solve the issue for others.

It may also be an issue with the rescript package itself and not be an issue with the plugin. However, everything was working completely fine with the Rescript CLI which makes me think it is something to do with the VS Code plugin.

Without this package explicitly added to my package.json I get the following error:

Error [ERR_MODULE_NOT_FOUND]: Cannot find module '/home/jasoons/Documents/code/enviodev/hack/query-builder/node_modules/@rescript/linux-x64/bin.js' imported from /home/jasoons/.cursor/extensions/chenglou92.rescript-vscode-1.64.0-universal/server/out/cli.js
    at finalizeResolution (node:internal/modules/esm/resolve:283:11)
    at moduleResolve (node:internal/modules/esm/resolve:959:10)
    at defaultResolve (node:internal/modules/esm/resolve:1195:11)
    at ModuleLoader.defaultResolve (node:internal/modules/esm/loader:642:12)
    at #cachedDefaultResolve (node:internal/modules/esm/loader:591:25)
    at ModuleLoader.resolve (node:internal/modules/esm/loader:574:38)
    at ModuleLoader.getModuleJobForImport (node:internal/modules/esm/loader:236:38)
    at ModuleLoader.import (node:internal/modules/esm/loader:539:34)
    at defaultImportModuleDynamicallyForScript (node:internal/modules/esm/utils:228:31)
    at importModuleDynamicallyCallback (node:internal/modules/esm/utils:250:12) {
  code: 'ERR_MODULE_NOT_FOUND',
  url: 'file:///home/jasoons/Documents/code/enviodev/hack/query-builder/node_modules/@rescript/linux-x64/bin.js'
}

Node.js v20.19.1

[nojaf]

Hello, thanks for reporting this issue.
The problem here is that

rescript-vscode/server/src/utils.ts

Lines 125 to 129 in 01a4a81

	const targetPackagePath = path.join(
	rescriptDir,
	"..",
	`@rescript/${target}/bin.js`,
	);

doesn't hold with pnpm.

Rescript is likely to be installed as node_modules/rescript while its dependency will be at node_modules/.pnpm/@rescript/linux-x64 or something along those lines.

[nojaf]

Could you try out latest beta (12) and latest vsix (1.65.7).

If it doesn't work, try post the result of the Dump LSP Server State command.