Gatsby-plugin-react-i18next default language prefix not added to url?

I’m using gatsby-plugin-react-i18next when build the project , the dfault langauge prefx is not added to url

how can add it?

Hi there!

Thanks for writing in! Since this is a Gatsby Community plugin (rather than an Official Gatsby plugin), the best place to get help with issues or configuration will be on the plugin repository here. Thanks again!