UE5 Project Compilation Errors – Common Problems and How to Fix Them
When working on a Unreal Engine 5 project, it’s common to run into compilation errors that stop your game from building. Whether you’re compiling from the Editor, Visual Studio, or trying to package your game, these errors can be confusing—especially if they appear after adding new plugins, assets, or upgrading from UE4.
In this section, we’ll cover the most common UE5 Project Compilation Errors and how to fix them, including:
- Third-party plugins failing to compile after engine updates
- Missing project modules or incorrect Target.cs/Build.cs files
- Circular dependencies between game modules
- Errors after migrating assets from other UE projects
- Compatibility issues when upgrading to a new UE5 version
- Missing SDKs or platform tools for specific builds (PC, mobile, console)
- Corrupted project files or intermediate folders that need to be cleaned
Whether you’re stuck on “Build Failed” errors or your project won’t open or compile, this guide will help you troubleshoot and fix project-level issues in Unreal Engine 5, so you can get back to creating.