The defaultlocale parameter configuration is invalid

[yangdan8]

import ElementPlus from 'unplugin-element-plus/vite';
ElementPlus({
     useSource: false,
     defaultLocale: 'zh-cn',
})

[Muhammad-Faraz-Ali]

Method-1:
You need to set the localeDetection as false:

e.g
import ElementPlus from 'unplugin-element-plus/vite';
ElementPlus({
useSource: false,
defaultLocale: 'zh-cn',,
localeDetection: false,
})

Resourses:
1-https://stackoverflow.com/questions/66730980/defaultlocale-is-not-keeping-default-lang-in-next-js-i18n

Method-2
2-https://www.npmjs.com/package/unplugin-element-plus

Under the second link check the following images/links:

Step1: Go the github page and check options

OR
Step2: Click on 'here'

Step3: Check the 'zh-cn.ts'file

[jiangx831]

您好，我已收到您的邮件，祝您天天开心，工作顺利。