Introduction

When developing with C++ in Unreal Engine 5 (hereafter UE5), Live Coding is enabled by default to avoid the need to build in the IDE every time a change is made.

Environment

• Windows 11 Pro
• Rider 2023.1.3
• Unreal Engine 5.4

What is Live Coding?

Live Coding is the feature that allows you to build changes made to C++ classes while keeping the UE editor open and applying those changes.

Reference: https://dev.epicgames.com/documentation/en/unreal-engine/using-live-coding-to-recompile-unreal-engine-applications-at-runtime

Problem

For those using Windows in Japanese:
When running UE Live Coding, if the compilation fails, an error message may be displayed, but sometimes the message appears garbled, making it impossible to understand the content.

Solution

1. Open Windows settings
2. Select "Language & Region"
3. Click "Administrative language settings"
   
4. Go to the "Administrative" tab → Select "Change system locale"
   
5. Check the box for "Beta: Use Unicode UTF-8 for worldwide language support"
   

Result

The garbled message will now be correctly displayed in Japanese.

This setting resolves the issue of garbled Live Coding error messages!