locale-code-conflict

Locale codes that differ only in spelling, such as zh_CN and zh-CN.

Locale codes that differ only in spelling, such as zh_CN and zh-CN.

The check is on by default, with the severity warning.

Configure

Change the severity, or turn the check off, in checks:

x18n.config.ts
import { defineConfig } from '@x18n/core'

export default defineConfig({
  checks: {
    'locale-code-conflict': 'off',
  },
})

x18n check --only locale-code-conflict runs this check alone. x18n check --skip locale-code-conflict skips it for one run.

Source