Internal server 500

[charleslcso]

Been trying to build various 5.x versions. Either it won't build successfully, or it builds, but "yarn start" returns this error:

root@calcom:/opt/cal.com# yarn start
╭──────────────────────────────────────────────────────────────────────╮
│                                                                      │
│                  Update available v1.10.1 ≫ v2.5.4                   │
│    Changelog: https://github.com/vercel/turbo/releases/tag/v2.5.4    │
│              Run "npx @turbo/codemod update" to update               │
│                                                                      │
│     Follow @turborepo for updates: https://twitter.com/turborepo     │
╰──────────────────────────────────────────────────────────────────────╯
 WARNING  failed to contact turbod. Continuing in standalone mode: connection to turbo daemon process failed. Please ensure the following:
	- the process identified by the pid in the file at /tmp/turbod/841706809dfff7e1/turbod.pid is not running, and remove /tmp/turbod/841706809dfff7e1/turbod.pid
	- check the logs at /root/.local/share/turborepo/logs/841706809dfff7e1-cal.com.log
	- the unix domain socket at /tmp/turbod/841706809dfff7e1/turbod.sock has been removed
	You can also run without the daemon process by passing --no-daemon
• Packages in scope: @calcom/web
• Running start in 1 packages
• Remote caching disabled
@calcom/web:start: cache bypass, force executing 6f99e9dc6c4681ec
@calcom/web:start:    ▲ Next.js 15.3.3
@calcom/web:start:    - Local:        http://localhost:3000
@calcom/web:start:    - Network:      http://192.168.1.127:3000
@calcom/web:start: 
@calcom/web:start:  ✓ Starting...
@calcom/web:start:  ✓ Ready in 1612ms
@calcom/web:start:  ⨯ TypeError: Cannot read properties of undefined (reading 'bind')
@calcom/web:start:     at h (.next/server/chunks/77557.js:1:4590)
@calcom/web:start:     at d (.next/server/chunks/77557.js:1:4230)
@calcom/web:start:     at w (.next/server/chunks/40374.js:1:55153)
@calcom/web:start:     at stringify (<anonymous>) {
@calcom/web:start:   digest: '3924693595'
@calcom/web:start: }

How to fix the "bind" error?

[dosubot[bot]]

This "bind" error is a known issue when running Cal.com 5.x with Next.js 15.x and React 18—these versions are not officially supported yet and are known to cause breakage, including errors like the one you're seeing. The maintainers recommend using Next.js 14.x and the corresponding supported React version for now. The documentation and changelogs repeatedly warn about instability and breakage on 15.x/React 18, and there are no documented workarounds for this error other than downgrading to the supported stack source.

To resolve this:

1. Downgrade Next.js to 14.x and React to the version used in the last stable 5.x release.
2. Clean your environment: remove node_modules, .next, .turbo, and reinstall dependencies.
3. Double-check your .env file (copy from .env.example and generate fresh secrets).
4. Use the recommended Node.js version (>=18.x, ideally matching the version in the repo's engines field).
5. If you want a reproducible setup, try yarn dx (requires Docker).

If you still see issues after aligning your stack, let me know what versions you're using and any new error output.

To reply, just mention @dosu.

---

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[charleslcso]

@dosubot, how to perform the downgrade of next.js and react?

[dosubot[bot]]

To downgrade Next.js and React in Cal.com, edit the version numbers in apps/web/package.json (and any other relevant packages) to the last supported 5.x versions—typically, that's Next.js 14.x and React 18.2.0. For example:

"next": "^14.0.0",
"react": "^18.2.0",
"react-dom": "^18.2.0"

After updating, run the cleaning scripts to reset your environment. From the project root, you can use:

yarn clean
cd apps/web
yarn clean

Then, from the root, reinstall dependencies:

yarn install

Finally, start the app as usual:

yarn start

You can verify the installed versions with:

yarn why next
yarn why react

If you see any peer dependency warnings, check if related packages (like next-auth) also need to be downgraded to match the Next.js 14.x ecosystem. Make sure your Node.js and Yarn versions match the requirements in the repo (Node >=18.x, Yarn 3.4.1).

There isn't an official downgrade guide, but this process follows best practices for monorepos and matches the Cal.com setup scripts and structure.

To reply, just mention @dosu.

---

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[charleslcso]

Almost there:

@calcom/web:build:  ⚠ Invalid next.config.js options detected: 
@calcom/web:build:  ⚠     Unrecognized key(s) in object: 'serverExternalPackages'
@calcom/web:build:  ⚠ See more info here: https://nextjs.org/docs/messages/invalid-next-config
@calcom/web:build:   ▲ Next.js 14.2.30
@calcom/web:build: 
@calcom/web:build:    Creating an optimized production build ...
@calcom/web:build: Failed to compile.
@calcom/web:build: 
@calcom/web:build: ./pages/_app.tsx
@calcom/web:build: Module not found: Can't resolve 'react-inlinesvg/provider'
@calcom/web:build: 
@calcom/web:build: https://nextjs.org/docs/messages/module-not-found
@calcom/web:build: 
@calcom/web:build: ./app/providers.tsx
@calcom/web:build: Module not found: Can't resolve 'react-inlinesvg/provider'
@calcom/web:build: 
@calcom/web:build: https://nextjs.org/docs/messages/module-not-found
@calcom/web:build: 
@calcom/web:build: 
@calcom/web:build: > Build failed because of webpack errors
@calcom/web:build: ERROR: command finished with error: command (/opt/cal.com/apps/web) yarn run build exited (1)
command (/opt/cal.com/apps/web) yarn run build exited (1)

 Tasks:    12 successful, 13 total
Cached:    0 cached, 13 total
  Time:    10m53.49s 
Failed:    @calcom/web#build

 ERROR  run failed: command  exited (1)

There are at least 2 package.json. One at root, on at root/apps/web. Which one(s) to update?

[charleslcso]

In root/package.json I added:

"react-inlinesvg": "^4.2.0",

yarn build now gives:

@calcom/web:build:    Linting and checking validity of types ...
@calcom/web:build:  ⨯ ESLint: Failed to load plugin '@calcom/eslint' declared in '../../.eslintrc.js#overrides[0]': state.conditions.includes is not a function Referenced from: /opt/cal.com/.eslintrc.js
@calcom/web:build: Failed to compile.
@calcom/web:build: 
@calcom/web:build: ./app/(use-page-wrapper)/settings/(settings-layout)/organizations/roles/_components/RoleSheet.tsx:171:15
@calcom/web:build: Type error: Type 'UseFormReturn<{ name: string; permissions: string[]; color: string; isAdvancedMode: boolean; description?: string | undefined; }, any>' is not assignable to type 'UseFormReturn<{}>'.
@calcom/web:build:   The types returned by 'watch(...)' are incompatible between these types.
@calcom/web:build:     Type '{ name: string; permissions: string[]; color: string; isAdvancedMode: boolean; description?: string | undefined; }' is not assignable to type 'never'.
@calcom/web:build: 
@calcom/web:build:   169 |           <SheetTitle>{isEditing ? t("edit_role") : t("create_role")}</SheetTitle>
@calcom/web:build:   170 |         </SheetHeader>
@calcom/web:build: > 171 |         <Form form={form} handleSubmit={onSubmit}>
@calcom/web:build:       |               ^
@calcom/web:build:   172 |           <div className="space-y-4 py-5">
@calcom/web:build:   173 |             <div className="flex items-end justify-end gap-2">
@calcom/web:build:   174 |               <div className="flex-1">
@calcom/web:build: Next.js build worker exited with code: 1 and signal: null
@calcom/web:build: ERROR: command finished with error: command (/opt/cal.com/apps/web) yarn run build exited (1)
command (/opt/cal.com/apps/web) yarn run build exited (1)

 Tasks:    12 successful, 13 total
Cached:    7 cached, 13 total
  Time:    15m52.176s 
Failed:    @calcom/web#build

 ERROR  run failed: command  exited (1)

The error has been there for every version:

@calcom/web:build:    Linting and checking validity of types ...
@calcom/web:build:  ⨯ ESLint: Failed to load plugin '@calcom/eslint' declared in '../../.eslintrc.js#overrides[0]': state.conditions.includes is not a function Referenced from: /opt/cal.com/.eslintrc.js
@calcom/web:build: Failed to compile.

What can I do to fix the 2 errors?

[charleslcso]

@dosubot Ideas to solve the 2 errors?