How to Fix UE5 C1010 Error: Unexpected End of File While Looking for Precompiled Header

Why You’re Seeing This Error

This error occurs when you’ve enabled precompiled headers in your project, but your source file doesn’t include the precompiled header file as the first include.

Example Error Message

Copyfatal error C1010: unexpected end of file while looking for precompiled header directive

Solution

1. Include the precompiled header first: Make sure the precompiled header is the first include in your .cpp file.

// This must be the first include
#include "YourProjectName.h"  // This is your project's PCH

// Other includes follow
#include "MyActor.h"
#include "Components/StaticMeshComponent.h"

2. Check your build settings: Make sure precompiled headers are properly configured in your Build.cs file.

Copypublic class MyProject : ModuleRules
{
    public MyProject(ReadOnlyTargetRules Target) : base(Target)
    {
        PCHUsage = PCHUsageMode.UseExplicitOrSharedPCHs;
        // ...
    }
}

3. Regenerate project files: Sometimes regenerating your Visual Studio project files can help.
4. Create a missing PCH: If your project doesn’t have a PCH file, create one.