[Bug?]: Basic solid-start project from template is not working in npm workspaces

[rahulbknowbe4]

Duplicates

• I have searched the existing issues

Latest version

• I have tested the latest version

Current behavior 😯

Starting a new standalone solid-start project with npm init solid@latest and selecting basic works fine

But when i move to a monorepo structure with npm workspaces, things start breaking

This is my project structure

package.json
apps
   |- courseware
          |- package.json

root package.json

{
  "name": "myapp",
  "scripts": {},
  "keywords": [],
  "author": "",
  "license": "ISC",
  "workspaces": [
    "apps/courseware"
  ],
  "dependencies": {
    "@solidjs/meta": "^0.29.4",
    "@solidjs/router": "^0.15.0",
    "@solidjs/start": "^1.1.0",
    "solid-js": "^1.9.5",
    "vinxi": "^0.5.7"
  },
  "devDependencies": {},
  "engines": {
    "node": ">=22"
  }
}

apps/courseware/package.json

{
  "name": "@myapp/courseware",
  "type": "module",
  "scripts": {
    "dev": "vinxi dev",
    "build": "vinxi build",
    "start": "vinxi start",
    "version": "vinxi version"
  }
}

running npm run dev -w="@myapp/courseware" gives the following error

Error: Client-only API called on the server side. Run client-only code in onMount, or conditionally run client-only component with .
    at notSup (file:///app/node_modules/solid-js/web/dist/server.js:671:9)
    at file:///app/node_modules/@solidjs/router/dist/index.js:1637:27
    at ModuleJob.run (node:internal/modules/esm/module_job:329:25)
    at async onImport.tracePromise.__proto__ (node:internal/modules/esm/loader:644:26)
    at async SSRCompatModuleRunner.directRequest (file:///app/node_modules/vite/dist/node/module-runner.js:1233:24)
    at async SSRCompatModuleRunner.cachedRequest (file:///app/node_modules/vite/dist/node/module-runner.js:1180:76)
    at async eval (/app/apps/courseware/src/app.tsx:6:259)
    at async ESModulesEvaluator.runInlinedModule (file:///app/node_modules/vite/dist/node/module-runner.js:1062:5)
    at async SSRCompatModuleRunner.directRequest (file:///app/node_modules/vite/dist/node/module-runner.js:1284:61)
    at async SSRCompatModuleRunner.directRequest (file:///app/node_modules/vite/dist/node/chunks/dep-DBxKXgDP.js:25274:23)
    at async SSRCompatModuleRunner.cachedRequest (file:///app/node_modules/vite/dist/node/module-runner.js:1180:76)
    at async eval (/app/node_modules/@solidjs/start/dist/server/StartServer.jsx:4:562)
    at async ESModulesEvaluator.runInlinedModule (file:///app/node_modules/vite/dist/node/module-runner.js:1062:5)
    at async SSRCompatModuleRunner.directRequest (file:///app/node_modules/vite/dist/node/module-runner.js:1284:61)
    at async SSRCompatModuleRunner.directRequest (file:///app/node_modules/vite/dist/node/chunks/dep-DBxKXgDP.js:25274:23)
    at async SSRCompatModuleRunner.cachedRequest (file:///app/node_modules/vite/dist/node/module-runner.js:1180:76)
    at async eval (/app/node_modules/@solidjs/start/dist/server/index.jsx:7:31)
    at async ESModulesEvaluator.runInlinedModule (file:///app/node_modules/vite/dist/node/module-runner.js:1062:5)
    at async SSRCompatModuleRunner.directRequest (file:///app/node_modules/vite/dist/node/module-runner.js:1284:61)
    at async SSRCompatModuleRunner.directRequest (file:///app/node_modules/vite/dist/node/chunks/dep-DBxKXgDP.js:25274:23)
    at async SSRCompatModuleRunner.cachedRequest (file:///app/node_modules/vite/dist/node/module-runner.js:1180:76)
    at async eval (/app/apps/courseware/src/entry-server.tsx:8:142)
    at async ESModulesEvaluator.runInlinedModule (file:///app/node_modules/vite/dist/node/module-runner.js:1062:5)
    at async SSRCompatModuleRunner.directRequest (file:///app/node_modules/vite/dist/node/module-runner.js:1284:61)
    at async SSRCompatModuleRunner.directRequest (file:///app/node_modules/vite/dist/node/chunks/dep-DBxKXgDP.js:25274:23)
    at async SSRCompatModuleRunner.cachedRequest (file:///app/node_modules/vite/dist/node/module-runner.js:1180:76)
    at async eval (virtual:$vinxi/handler/ssr:4:31)
    at async ESModulesEvaluator.runInlinedModule (file:///app/node_modules/vite/dist/node/module-runner.js:1062:5)
    at async SSRCompatModuleRunner.directRequest (file:///app/node_modules/vite/dist/node/module-runner.js:1284:61)
    at async SSRCompatModuleRunner.directRequest (file:///app/node_modules/vite/dist/node/chunks/dep-DBxKXgDP.js:25274:23)
    at async SSRCompatModuleRunner.cachedRequest (file:///app/node_modules/vite/dist/node/module-runner.js:1180:76)
    at async SSRCompatModuleRunner.import (file:///app/node_modules/vite/dist/node/module-runner.js:1117:12)
    at async instantiateModule (file:///app/node_modules/vite/dist/node/chunks/dep-DBxKXgDP.js:25231:12)
    at async handler (file:///app/node_modules/vinxi/lib/router-modes.js:313:36)
    at async _callHandler (file:///app/node_modules/h3/dist/index.mjs:1862:16)
    at async file:///app/node_modules/h3/dist/index.mjs:2003:19
    at async Object.callAsync (file:///app/node_modules/unctx/dist/index.mjs:72:16)
    at async Server.toNodeHandle (file:///app/node_modules/h3/dist/index.mjs:2295:7)

Surprisingly though the build and start commands work fine in the monorepo setting
Doing npm run build -w="@myapp/courseware" and then npm run start -w=@myapp/courseware"
Shows the preview just fine

Expected behavior 🤔

Solid start dev command in workspace setting should work

Your environment 🌎

Debian GNU/Linux 12 (bookworm)
Running inside a docker container in MAC OS (arm chip)

[brenelz]

Do you have a complete reproduction repo? I usually see this error if vite-plugin-solid not configured correctly

[EugeneTeu]

Still had issue with this after upgrading bun upgrade to v1.2.20. switched to pnpm and it was fine.