Also, use NetworkProfiler (Unreal command: netprofile ) to find unnecessary replication that runs even in single-player. | Tool | Purpose | Command example | |------|---------|----------------| | Unreal Build Tool (UBT) | Analyze dependencies | -Mode=QueryTargets | | Unreal Header Tool (UHT) | Detect reflection bloat | -Verbose | | Rider/VS Profiler | Find binary hotspots | Performance Profiler | | Perforce/Git | Track Build/Binaries changes | git diff --stat | | PakTool | Split optional MP assets into separate .pak | UnrealPak.exe | Part 5: Common Pitfalls & Fixes Pitfall 1: The “Missing Entry Point” Error When loading optional multiplayer DLL:
Definitions.Add("UE_DEDICATED_SERVER=0");
PublicDefinitions.Add("WITH_OPTIONAL_MULTIPLAYER=1"); if (Target.Configuration != UnrealTargetConfiguration.Shipping)
In your GameInstance subclass:
if (!OnlineSubsystem) OnlineSubsystem = IOnlineSubsystem::Get(); if (!OnlineSubsystem) return; // Dynamically load network driver GEngine->CreateNamedNetDriver(NAME_GameNetDriver, NAME_Game);
ProjectName/Binaries/Win64/ or
static bool bNetworkInitialized = false; if (!bNetworkInitialized)
void UMyGameInstance::HostSession()