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Cannot open HandsTrainSample because Engine modules are out of date.

torano
Level 4
I wanted to try out Hand Tracking with UE4, and I just did git clone the engine source from Oculus github, and build the engine following the instruction in the Oculus website. I cloned 1e09d2f (the latest one) from branch 4.25, which is release "oculus-4.25.3-release-1.51.0-v19.0" and built the engine using Visual Studio 2019.
It worked fine, I could make a new project. I could also open HandSample project and it works great with Oculus Quest & Link. But I couldn't open HandsTrainSample.

I built the engine and clicked Debug/Start a new instance in Visual Studio, then it opened up the editor. Then I chose the sample, but I couldn't open it. I also tried to open .uproject directly but it just says "The following modules are missing or build with a different engine version: HandsTrainSample Would you like to rebuild them now?" and if i go Yes, then I get Missing Modules error with the message "Engine modules are out of date, and cannot be compiled while the engine is running. Please build through your IDE." and I couldn't open it.

I guess I have to find and fix errors in VS but I don't even know where I can get .sln file for this project so which I need to see errors in VS. I tried Generate Visual Studio project files from HandsTrainSample.uproject but .sln file wasn't generated in the same directory although I got no error.

This is my first time to build the engine from source and I might misunderstand some stuff. I hope someone helps me with it.



3 REPLIES 3

torano
Level 4
Ok I found logs. Here it is.
But I still don't know how to "rebuild from an IDE instead."

Log file open, 08/08/20 11:35:23
LogInit: Display: Running engine for game: HandsTrainSample
LogPlatformFile: Not using cached read wrapper
LogTaskGraph: Started task graph with 5 named threads and 26 total threads with 3 sets of task threads.
LogStats: Stats thread started at 0.147765
LogD3D11RHI: Loaded GFSDK_Aftermath_Lib.x64.dll
LogICUInternationalization: ICU TimeZone Detection - Raw Offset: +9:00, Platform Override: ''
LogPluginManager: Mounting plugin Paper2D
LogPluginManager: Mounting plugin AISupport
LogPluginManager: Mounting plugin LightPropagationVolume
LogPluginManager: Mounting plugin CameraShakePreviewer
LogPluginManager: Mounting plugin ActorLayerUtilities
LogPluginManager: Mounting plugin AnimationSharing
LogPluginManager: Mounting plugin CLionSourceCodeAccess
LogPluginManager: Mounting plugin CodeLiteSourceCodeAccess
LogPluginManager: Mounting plugin GitSourceControl
LogPluginManager: Mounting plugin KDevelopSourceCodeAccess
LogPluginManager: Mounting plugin NullSourceCodeAccess
LogPluginManager: Mounting plugin PerforceSourceControl
LogPluginManager: Mounting plugin PlasticSourceControl
LogPluginManager: Mounting plugin RiderSourceCodeAccess
LogPluginManager: Mounting plugin SubversionSourceControl
LogPluginManager: Mounting plugin UObjectPlugin
LogPluginManager: Mounting plugin VisualStudioCodeSourceCodeAccess
LogPluginManager: Mounting plugin VisualStudioSourceCodeAccess
LogPluginManager: Mounting plugin XCodeSourceCodeAccess
LogPluginManager: Mounting plugin AssetManagerEditor
LogPluginManager: Mounting plugin CryptoKeys
LogPluginManager: Mounting plugin CurveEditorTools
LogPluginManager: Mounting plugin DataValidation
LogPluginManager: Mounting plugin EditorScriptingUtilities
LogPluginManager: Mounting plugin FacialAnimation
LogPluginManager: Mounting plugin GameplayTagsEditor
LogPluginManager: Mounting plugin GeometryMode
LogPluginManager: Mounting plugin MacGraphicsSwitching
LogPluginManager: Mounting plugin MaterialAnalyzer
LogPluginManager: Mounting plugin MobileLauncherProfileWizard
LogPluginManager: Mounting plugin PluginBrowser
LogPluginManager: Mounting plugin SpeedTreeImporter
LogPluginManager: Mounting plugin DatasmithContent
LogPluginManager: Mounting plugin VariantManagerContent
LogPluginManager: Mounting plugin AlembicImporter
LogPluginManager: Mounting plugin AutomationUtils
LogPluginManager: Mounting plugin BackChannel
LogPluginManager: Mounting plugin ChaosCloth
LogPluginManager: Mounting plugin ChaosClothEditor
LogPluginManager: Mounting plugin ChaosEditor
LogPluginManager: Mounting plugin ChaosNiagara
LogPluginManager: Mounting plugin ChaosSolverPlugin
LogPluginManager: Mounting plugin CharacterAI
LogPluginManager: Mounting plugin GeometryCache
LogPluginManager: Mounting plugin GeometryCollectionPlugin
LogPluginManager: Mounting plugin GeometryProcessing
LogPluginManager: Mounting plugin PlanarCut
LogPluginManager: Mounting plugin PlatformCrypto
LogPluginManager: Mounting plugin ProxyLODPlugin
LogPluginManager: Mounting plugin SkeletalReduction
LogPluginManager: Mounting plugin Niagara
LogPluginManager: Mounting plugin MagicLeap
LogPluginManager: Mounting plugin MagicLeapLightEstimation
LogPluginManager: Mounting plugin MagicLeapMedia
LogPluginManager: Mounting plugin MagicLeapPassableWorld
LogPluginManager: Mounting plugin MLSDK
LogPluginManager: Mounting plugin AndroidMedia
LogPluginManager: Mounting plugin AvfMedia
LogPluginManager: Mounting plugin ImgMedia
LogPluginManager: Mounting plugin MediaCompositing
LogPluginManager: Mounting plugin MediaPlayerEditor
LogPluginManager: Mounting plugin WebMMedia
LogPluginManager: Mounting plugin WmfMedia
LogPluginManager: Mounting plugin MeshPainting
LogPluginManager: Mounting plugin TcpMessaging
LogPluginManager: Mounting plugin UdpMessaging
LogPluginManager: Mounting plugin ActorSequence
LogPluginManager: Mounting plugin LevelSequenceEditor
LogPluginManager: Mounting plugin MatineeToLevelSequence
LogPluginManager: Mounting plugin MovieRenderPipeline
LogPluginManager: Mounting plugin TemplateSequence
LogPluginManager: Mounting plugin NetcodeUnitTest
LogPluginManager: Mounting plugin NUTUnrealEngine4
LogPluginManager: Mounting plugin OnlineSubsystemGooglePlay
LogPluginManager: Mounting plugin OnlineSubsystemIOS
LogPluginManager: Mounting plugin OnlineSubsystem
LogPluginManager: Mounting plugin OnlineSubsystemNull
LogPluginManager: Mounting plugin OnlineSubsystemOculus
LogPluginManager: Mounting plugin OnlineSubsystemUtils
LogPluginManager: Mounting plugin LauncherChunkInstaller
LogPluginManager: Mounting plugin AndroidDeviceProfileSelector
LogPluginManager: Mounting plugin AndroidMoviePlayer
LogPluginManager: Mounting plugin AndroidPermission
LogPluginManager: Mounting plugin AppleImageUtils
LogPluginManager: Mounting plugin AppleMoviePlayer
LogPluginManager: Mounting plugin ArchVisCharacter
LogPluginManager: Mounting plugin AssetTags
LogPluginManager: Mounting plugin AudioCapture
LogPluginManager: Mounting plugin CableComponent
LogPluginManager: Mounting plugin CustomMeshComponent
LogPluginManager: Mounting plugin EditableMesh
LogPluginManager: Mounting plugin ExampleDeviceProfileSelector
LogPluginManager: Mounting plugin GoogleCloudMessaging
LogPluginManager: Mounting plugin GooglePAD
LogPluginManager: Mounting plugin IOSDeviceProfileSelector
LogPluginManager: Mounting plugin LinuxDeviceProfileSelector
LogPluginManager: Mounting plugin LocationServicesBPLibrary
LogPluginManager: Mounting plugin MobilePatchingUtils
LogPluginManager: Mounting plugin OculusVR
LogPluginManager: Mounting plugin PhysXVehicles
LogPluginManager: Mounting plugin PostSplashScreen
LogPluginManager: Mounting plugin ProceduralMeshComponent
LogPluginManager: Mounting plugin RuntimePhysXCooking
LogPluginManager: Mounting plugin SignificanceManager
LogPluginManager: Mounting plugin SoundFields
LogPluginManager: Mounting plugin SteamVR
LogPluginManager: Mounting plugin Synthesis
LogPluginManager: Mounting plugin WebMMoviePlayer
LogPluginManager: Mounting plugin WindowsMoviePlayer
LogPluginManager: Mounting plugin ScreenshotTools
LogInit: Warning: Incompatible or missing module: HandsTrainSample
Running F:/UnrealEngineSource/Oculus/UnrealEngine/Engine/Binaries/DotNET/UnrealBuildTool.exe Development Win64 -Project="F:/UnrealEngineSource/Oculus/UnrealEngine/Samples/Oculus/HandsTrainSample/HandsTrainSample.uproject" -TargetType=Editor -Progress -NoEngineChanges -NoHotReloadFromIDE
Using 'git status' to determine working set for adaptive non-unity build (F:\UnrealEngineSource\Oculus\UnrealEngine).
Creating makefile for HandsTrainSampleEditor (no existing makefile)
@progress push 5%
@progress pop
ERROR: Building would modify the following engine files:
      
       F:\UnrealEngineSource\Oculus\UnrealEngine\Engine\Intermediate\Build\Win64\UE4Editor\Development\Engine\SharedPCH.Engine.h.obj
       F:\UnrealEngineSource\Oculus\UnrealEngine\Engine\Intermediate\Build\Win64\UE4Editor\Development\Engine\SharedPCH.Engine.h.pch
       F:\UnrealEngineSource\Oculus\UnrealEngine\Engine\Intermediate\Build\Win64\UE4Editor\Development\Engine\SharedPCH.Engine.h.txt
      
       Please rebuild from an IDE instead.
LogCore: Engine exit requested (reason: EngineExit() was called)
LogExit: Preparing to exit.
LogModuleManager: Shutting down and abandoning module DesktopPlatform (46)
LogModuleManager: Shutting down and abandoning module PlatformCryptoOpenSSL (44)
LogModuleManager: Shutting down and abandoning module PlatformCryptoTypes (42)
LogModuleManager: Shutting down and abandoning module PlatformCrypto (40)
LogModuleManager: Shutting down and abandoning module AnimationModifiers (38)
LogModuleManager: Shutting down and abandoning module PropertyEditor (37)
LogModuleManager: Shutting down and abandoning module AudioEditor (34)
LogModuleManager: Shutting down and abandoning module TextureCompressor (32)
LogModuleManager: Shutting down and abandoning module RenderCore (30)
LogModuleManager: Shutting down and abandoning module Landscape (28)
LogModuleManager: Shutting down and abandoning module SlateRHIRenderer (26)
LogModuleManager: Shutting down and abandoning module OpenGLDrv (24)
LogModuleManager: Shutting down and abandoning module D3D11RHI (22)
LogModuleManager: Shutting down and abandoning module AnimGraphRuntime (20)
LogModuleManager: Shutting down and abandoning module Renderer (18)
LogModuleManager: Shutting down and abandoning module Engine (16)
LogModuleManager: Shutting down and abandoning module CoreUObject (14)
LogModuleManager: Shutting down and abandoning module NetworkFile (12)
LogModuleManager: Shutting down and abandoning module CookedIterativeFile (10)
LogModuleManager: Shutting down and abandoning module StreamingFile (8)
LogModuleManager: Shutting down and abandoning module SandboxFile (6)
LogModuleManager: Shutting down and abandoning module PakFile (4)
LogModuleManager: Shutting down and abandoning module RSA (3)
LogExit: Exiting.
Log file closed, 08/08/20 11:35:33


torano
Level 4
Never mind. I finally got it worked. What I needed is to open UE4.sln and rebuild HandsTrainSample from Solution Exoporer. And then I could open the project. I don't know why HandSample doens't need that process but HandsTrainSample, though.

aussieburgerVR
Level 7
Yeah it's the same way the Chaos example project from Epic needed to be built.

Someone obviously put alot of work into this example however unfortunately they mustn't know unreal so well since it's not optimized for the Quest at all...