i18n: TypeScript Error: Property 'translations' does not exist on I18nOptions type

[mflisikowski]

Describe the Bug

TypeScript Error: Property 'translations' does not exist on I18nOptions type

Description

There is a TypeScript error in the custom translations configuration for Payload CMS. The error occurs when trying to access the translations property on the Config['i18n'] type. / https://payloadcms.com/docs/configuration/i18n#typescript

Property 'translations' does not exist on type 'I18nOptions<{} | { authentication: { account: string; accountOfCurrentUser: string; accountVerified: string; alreadyActivated: string; alreadyLoggedIn: string; apiKey: string; authenticated: string; ... 59 more ...; youDidNotRequestPassword: string; }; ... 7 more ...; version: { ...; }; }> | undefined'.ts(2339)

Link to the code that reproduces this issue

https://github.com/mflisikowski/i18n-custom-translations

Reproduction Steps

Environment

• Payload CMS: 3.5.0
• Next.js: 15.0.4
• TypeScript: 5.7.2
• @payloadcms/translations: ^3.5.0

Steps to Reproduce

1. Set up a Payload CMS project with i18n support
2. Configure custom translations using the Config['i18n']['translations'] type: https://payloadcms.com/docs/configuration/i18n#typescript
3. Run TypeScript type checking

Which area(s) are affected? (Select all that apply)

area: docs

Environment Info

Binaries:
  Node: 20.11.1
  npm: 10.2.4
  pnpm: 9.13.2
Relevant Packages:
  payload: 3.5.0
  next: 15.0.4
  @payloadcms/graphql: 3.5.0
  @payloadcms/next/utilities: 3.5.0
  @payloadcms/richtext-lexical: 3.5.0
  @payloadcms/translations: 3.5.0
  @payloadcms/ui/shared: 3.5.0
  react: 19.0.0
  react-dom: 19.0.0
Operating System:
  Platform: darwin
  Arch: x64
  Version: Darwin Kernel Version 24.1.0: Thu Oct 10 21:03:15 PDT 2024; root:xnu-11215.41.3~2/RELEASE_ARM64_T6000
  Available memory (MB): 16384
  Available CPU cores: 10