: Your specific game installation lacks the local language asset files (.package files) for the language you selected.
You selected a language (e.g., Japanese or Korean) that requires specific system fonts. Your Windows OS might lack the necessary language pack. Fix:
Disclaimer: This article is for informational purposes only. Modifying game files violates EA’s User Agreement, though no enforcement has been documented for language switching. Always scan downloaded executables with antivirus software.
在2014年《模拟人生4》刚刚发布时，对于许多玩家来说，更改游戏语言并不像如今在Steam或EA App的属性菜单中下拉选择那么简单。特别是对于当时广泛传播的“免安装未加密版”用户，这套工具几乎成了体验中文或其他语言的“必需品”。
This tool is primarily for non-Origin versions (repacks/cracks). If you use official Origin/EA app, it is better to change the language through -> Advanced Launch Options . Conclusion