Unicode

Solve the problem of garbled Compile error messages in UE4 under Chinese environment

14.08.2026 0, ? Design & Development Software and Hardware Usage

UE4 4.26.0, VS 2019 Community, and Chinese Win10 20H2 together produced the problem discussed today: when Compile errors occur, the log messages in Chinese are garbled:

I tried switching VS language to English and UE4 language to Chinese, neither worked. I recalled a previous issue: Android Studio的Build Output中文输出乱码(菱形问号)问题的解决方法, and wondered if UE4 had similar settings. After searching without success, I discovered that in newer Win10 (not sure which version first added it) there is a UTF‑8 option in regional language settings. Although in 20H2 it is still labeled beta, it indeed solves the problem:

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Perforce (P4) server Unicode mode setup to fix Chinese filename/folder garbled text

11.06.2026 0, ? Software and Hardware Usage

Perforce (P4) server Unicode mode setup to fix Chinese filename/folder garbled text

Problem environment: p4d running on a Linux server, P4ROOT created with default settings, Unicode not enabled. Clients: Windows P4V and Mac P4V. In P4Admin, Server Info showed Unicode support: disabled. When a Windows client added files/folders with Chinese names and submitted them, the Mac client displayed garbled text in the Depot. After Get, filenames were saved with %20 style encoding.

Checking further: with Unicode disabled, in P4V the Connections → Choose Character Encoding… menu was grayed out. In Preferences → Display → Set encoding for all connections to:, Windows default was CP936 GBK, Mac default was UTF‑8. This mismatch caused Chinese names uploaded from Windows to appear garbled on Mac. Forcing P4CHARSET to UTF‑8 or using p4 set produced the error: ‘Unicode clients require a unicode enabled server‘.

Solution: enable Unicode mode on the server.

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