The following language declarations do not contain valid machine-redable codes: English-US

[YihongHu]

I have been receiving this error: 

Changed everything to "English (en)" but still can't help. Anyone has solution to this? 

[JamesTedrick]

Hi @YihongHu ,

Thile the error appears on validation, it does not prevent publishing; refer to Manage multiple languages—ArcGIS Survey123 | Documentation.