UE5 Build Configuration Errors – Fixing Common Setup Issues

Sometimes your Unreal Engine 5 project compiles fine in one mode but breaks in another—like when switching from Development Build to Shipping, or trying to package your game. These are often Build Configuration Errors, and they can be frustrating if you don’t know what to look for.

In this section, we cover common issues like:

• Incorrect Build Target settings (e.g., missing or misnamed Target.cs files)
• Modules that compile in Development but fail in Shipping builds
• Missing or incorrect Build.cs dependencies that cause compilation to fail
• Version mismatches between engine plugins and your project build
• Packaging errors related to bad configurations or unsupported settings
• Platform-specific build errors (PC, mobile, console) when using different build configs

Whether you’re building for testing or getting ready to release, this guide will help you understand what’s causing build errors in UE5—and show you how to fix them fast.