Unreal 5.4 problem with a packaged game! Server spawns the character and client disconnecting with 'Failed to load package' error.

Ocean.Heart · May 5, 2024, 2:53pm

Hello, guys. That problem killing my days so you are my last hope.

I usually test my multiplayer project by running a local server with bat file with -server parameter and joining same way with -game. And sometimes for the group testing I package the game for my friends to join.

Everything worked fine in 5.3 but in 5.4 I stuck with this problem. PIE and -game launching works fine. It occurs only in packaged game.

I connect to the server and everything is ok but when it spawns a player character the client got immediately disconnected with the “Error ‘Failed to load package ‘’’. Exiting.” And it happens not only in my project but in all the starter template projects at 5.4. So I recreated this problem in a ThirdPersonTemplate project.

There’s some details that I should mention:

I tried to spawn with same logic the “pawn” class and possess it and everything fine. This problem occurs only when server spawns “character” class.
I tried all the different packaging ways by the default tool and project launcher. And Shipping / DebugGame / Development configuration doesn’t matter.
My packaging process have no warnings.
The client and server have the same version of a game / content. I’m using “full rebuild” option and tried to force that character asset to cook with “Additional asset directories to cook”.
I tried reinstalling UE / Visual Studio and clearing the project / engine cache.

So… here is the logs. Please, help😥

Server:

Client:

SeGuVeGa · May 18, 2024, 8:27am

I have the same exact issue but for me it appears when i execute Console command Open Ip : port
do you manage to solve it?
LogLoad: Took 0.091811 seconds to LoadMap(/Game/Maps/UEDPIE_0_EscapeMap)
LogGlobalStatus: UEngine::LoadMap Load map complete /Game/Maps/UEDPIE_0_EscapeMap
LogGlobalStatus: UPendingNetGame::TravelCompleted Pending net game travel completed
LogNetPackageMap: Warning: GetObjectFromNetGUID: Network checksum mismatch. FullNetGUIDPath: [11]/Script/EscapeAndBuild.[17]Default__FPlayer, 3537320609, 36963642
LogNetPackageMap: Warning: InternalLoadObject: Unable to resolve object from path. Path: Default__FPlayer, Outer: /Script/EscapeAndBuild, NetGUID: 17
LogNetPackageMap: Warning: InternalLoadObject: Unable to resolve object. FullNetGUIDPath: [11]/Script/EscapeAndBuild.[17]Default__FPlayer
LogNetPackageMap: Error: UPackageMapClient::SerializeNewActor. Unresolved Archetype GUID. Path: Default__FPlayer, NetGUID: 17.
LogNetPackageMap: Error: UPackageMapClient::SerializeNewActor Unable to read Archetype for NetGUID 6 / 17
LogNet: Warning: UActorChannel::ProcessBunch: SerializeNewActor failed to find/spawn actor. Actor: None, Channel: 4
LogNetPackageMap: Warning: GetObjectFromNetGUID: Network checksum mismatch. FullNetGUIDPath: [11]/Script/EscapeAndBuild.[23]SpectatorPlayer, 3234550367, 2147295253
LogNetPackageMap: Warning: InternalLoadObject: Unable to resolve object from path. Path: SpectatorPlayer, Outer: /Script/EscapeAndBuild, NetGUID: 23
LogNetPackageMap: Warning: InternalLoadObject: Unable to resolve object. FullNetGUIDPath: [11]/Script/EscapeAndBuild.[23]SpectatorPlayer
LogNetPackageMap: Warning: GetObjectFromNetGUID: Network checksum mismatch. FullNetGUIDPath: [11]/Script/EscapeAndBuild.[25]Default__FSkeleton, 2788123537, 1104374258
LogNetPackageMap: Warning: InternalLoadObject: Unable to resolve object from path. Path: Default__FSkeleton, Outer: /Script/EscapeAndBuild, NetGUID: 25
LogNetPackageMap: Warning: InternalLoadObject: Unable to resolve object. FullNetGUIDPath: [11]/Script/EscapeAndBuild.[25]Default__FSkeleton
LogNetPackageMap: Error: UPackageMapClient::SerializeNewActor. Unresolved Archetype GUID. Path: Default__FSkeleton, NetGUID: 25.
LogNetPackageMap: Error: UPackageMapClient::SerializeNewActor Unable to read Archetype for NetGUID 12 / 25
LogNet: Warning: UActorChannel::ProcessBunch: SerializeNewActor failed to find/spawn actor. Actor: None, Channel: 6
LogNetPackageMap: Warning: InternalLoadObject: Unable to resolve object from path. Path: Default__FSkeleton, Outer: /Script/EscapeAndBuild, NetGUID: 25
LogNetPackageMap: Warning: InternalLoadObject: Unable to resolve object. FullNetGUIDPath: [11]/Script/EscapeAndBuild.[25]Default__FSkeleton
LogNetPackageMap: Error: UPackageMapClient::SerializeNewActor. Unresolved Archetype GUID. Path: Default__FSkeleton, NetGUID: 25.
LogNetPackageMap: Error: UPackageMapClient::SerializeNewActor Unable to read Archetype for NetGUID 20 / 25
LogNet: Warning: UActorChannel::ProcessBunch: SerializeNewActor failed to find/spawn actor. Actor: None, Channel: 7
LogNetPackageMap: Warning: InternalLoadObject: Unable to resolve object from path. Path: Default__FSkeleton, Outer: /Script/EscapeAndBuild, NetGUID: 25
LogNetPackageMap: Warning: InternalLoadObject: Unable to resolve object. FullNetGUIDPath: [11]/Script/EscapeAndBuild.[25]Default__FSkeleton
LogNetPackageMap: Error: UPackageMapClient::SerializeNewActor. Unresolved Archetype GUID. Path: Default__FSkeleton, NetGUID: 25.
LogNetPackageMap: Error: UPackageMapClient::SerializeNewActor Unable to read Archetype for NetGUID 28 / 25
LogNet: Warning: UActorChannel::ProcessBunch: SerializeNewActor failed to find/spawn actor. Actor: None, Channel: 8
LogNetPackageMap: Warning: InternalLoadObject: Unable to resolve object from path. Path: Default__FSkeleton, Outer: /Script/EscapeAndBuild, NetGUID: 25
LogNetPackageMap: Warning: InternalLoadObject: Unable to resolve object. FullNetGUIDPath: [11]/Script/EscapeAndBuild.[25]Default__FSkeleton
LogNetPackageMap: Error: UPackageMapClient::SerializeNewActor. Unresolved Archetype GUID. Path: Default__FSkeleton, NetGUID: 25.
LogNetPackageMap: Error: UPackageMapClient::SerializeNewActor Unable to read Archetype for NetGUID 70 / 25
LogNet: Warning: UActorChannel::ProcessBunch: SerializeNewActor failed to find/spawn actor. Actor: None, Channel: 27
LogNetPackageMap: Warning: InternalLoadObject: Unable to resolve object from path. Path: Default__FSkeleton, Outer: /Script/EscapeAndBuild, NetGUID: 25
LogNetPackageMap: Warning: InternalLoadObject: Unable to resolve object. FullNetGUIDPath: [11]/Script/EscapeAndBuild.[25]Default__FSkeleton
LogNetPackageMap: Error: UPackageMapClient::SerializeNewActor. Unresolved Archetype GUID. Path: Default__FSkeleton, NetGUID: 25.
LogNetPackageMap: Error: UPackageMapClient::SerializeNewActor Unable to read Archetype for NetGUID 78 / 25
LogNet: Warning: UActorChannel::ProcessBunch: SerializeNewActor failed to find/spawn actor. Actor: None, Channel: 28
LogNet: Error: UEngine::BroadcastNetworkFailure: FailureType = NetChecksumMismatch, ErrorString = GetObjectFromNetGUID: Network checksum mismatch. FullNetGUIDPath: [11]/Script/EscapeAndBuild.[17]Default__FPlayer, 3537320609, 36963642, Driver = Name:GameNetDriver Def:GameNetDriver IpNetDriver_0
LogNet: Warning: Network Failure: GameNetDriver[NetChecksumMismatch]: GetObjectFromNetGUID: Network checksum mismatch. FullNetGUIDPath: [11]/Script/EscapeAndBuild.[17]Default__FPlayer, 3537320609, 36963642
LogNet: NetworkFailure: NetChecksumMismatch, Error: ‘GetObjectFromNetGUID: Network checksum mismatch. FullNetGUIDPath: [11]/Script/EscapeAndBuild.[17]Default__FPlayer, 3537320609, 36963642’
LogNet: Error: UEngine::BroadcastNetworkFailure: FailureType = NetChecksumMismatch, ErrorString = GetObjectFromNetGUID: Network checksum mismatch. FullNetGUIDPath: [11]/Script/EscapeAndBuild.[23]SpectatorPlayer, 3234550367, 2147295253, Driver = Name:GameNetDriver Def:GameNetDriver IpNetDriver_0
LogNet: Error: UEngine::BroadcastNetworkFailure: FailureType = NetChecksumMismatch, ErrorString = GetObjectFromNetGUID: Network checksum mismatch. FullNetGUIDPath: [11]/Script/EscapeAndBuild.[25]Default__FSkeleton, 2788123537, 1104374258, Driver = Name:GameNetDriver Def:GameNetDriver IpNetDriver_0
LogGlobalStatus: UEngine::Browse Started Browse: “/Game/Maps/MainMenu?closed”
LogNet: Browse: /Game/Maps/MainMenu?closed
LogNet: Connection failed; returning to Entry