Widget Component에서만 LNK 에러가 날 때

using UnrealBuildTool;

public class ProjectName : ModuleRules
{
	public ProjectName(ReadOnlyTargetRules Target) : base(Target)
	{
		PCHUsage = PCHUsageMode.UseExplicitOrSharedPCHs;

		PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore", "HeadMountedDisplay", "EnhancedInput", "UMG" });
	}
}

AddRange에 UMG를 추가한다.