HoloLens 的 Unity 開發

Question

我嘗試使用 Vuforia 引擎 function 開發一個 Unity 項目以部署到 HoloLens。 簡短的問題摘要：它不起作用。 我開始使用 Vuforia AR 相機和放置在視野中的 3D 立方體創建一個非常簡單的項目，只是為了測試它。 它可以在 Unity 預覽中呈現它。 然而，Unity 控制台出現錯誤，Unity 程序既不能在 HoloLens 上運行，也不能作為 Visual Studio 預覽中的獨立應用程序運行。 總是發生的一個錯誤是：

DllNotFoundException：VuforiaWrapper。

可以在 Visual Studio 中構建一個獨立的應用程序，它會按應有的方式呈現 3D 立方體，但背景是黑色的，相機不工作（Razer Kiyo）。

我已經嘗試了幾個 Unity 版本，包括 2017 和 2018 的 LTS 版本以及 Visual Studio 2017 和 2019。它不適用於上述任何一個版本。

將 Vuforia Hololens 樣本導入 Unity 會破壞項目，並使其無法在我嘗試過的每個 Unity 版本中編譯，因此我不得不放棄它。

有人知道如何解決這個問題嗎？ 它甚至不適用於這樣一個簡單的項目，這似乎很奇怪。

從附加的 Visual Studio 構建中查找日志文件：

    Mono path[0] = 'C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build   /bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Managed'
Mono config path = 'C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/x64/Debug/MonoBleedingEdge/etc'
PlayerConnection initialized from C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data (debug = 0)
PlayerConnection initialized network socket : 0.0.0.0 55402
Multi-casting "[IP] 10.4.2.246 [Port] 55402 [Flags] 2 [Guid] 682190711 [EditorId] 0 [Version] 1048832 [Id] WindowsPlayer(DeepThought) [Debug] 0 [PackageName] WindowsPlayer" to [225.0.0.222:54997]...
Started listening to [0.0.0.0:55402]
PlayerConnection already initialized - listening to [0.0.0.0:55402]
Initialize engine version: 2018.4.11f1 (7098af2f11ea)
GfxDevice: creating device client; threaded=1
XR: OpenVR Error! OpenVR failed initialization with error code VRInitError_Init_PathRegistryNotFound: "Installation path could not be located (110)"!

(Filename: C:\buildslave\unity\build\Runtime/VR/OpenVR/OpenVR.cpp Line: 1835)

Direct3D:
    Version:  Direct3D 11.0 [level 11.1]
    Renderer: NVIDIA GeForce RTX 2080 Ti (ID=0x1e04)
    Vendor:   
    VRAM:     11049 MB
    Driver:   25.21.14.1967
Begin MonoManager ReloadAssembly
- Completed reload, in  0.100 seconds
<RI> Initializing input.

XInput1_3.dll not found. Trying XInput9_1_0.dll instead...
<RI> Input initialized.

<RI> Initialized touch support.

XR: OpenVR Error! OpenVR failed initialization with error code VRInitError_Init_PathRegistryNotFound: "Installation path could not be located (110)"!

(Filename: C:\buildslave\unity\build\Runtime/VR/OpenVR/OpenVR.cpp Line: 1835)

XR: OpenVR Error! OpenVR failed initialization with error code VRInitError_Init_PathRegistryNotFound: "Installation path could not be located (110)"!

(Filename: C:\buildslave\unity\build\Runtime/VR/OpenVR/OpenVR.cpp Line: 1835)

UnloadTime: 0.641200 ms
Compiled for Play Mode
UnityEngine.DebugLogHandler:Internal_Log(LogType, String, Object)
UnityEngine.DebugLogHandler:LogFormat(LogType, Object, String, Object[])
UnityEngine.Logger:Log(LogType, Object)
UnityEngine.Debug:Log(Object)
Vuforia.PlatformRuntimeInitialization:InitPlatform()

(Filename: C:\buildslave\unity\build\Runtime/Export/Debug.bindings.h Line: 45)

Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper.dll
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper.dll
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper.dll
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper.dll
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper
DllNotFoundException: VuforiaWrapper
  at (wrapper managed-to-native) Vuforia.VuforiaNativeWrapper.initPlatformNative()
  at Vuforia.VuforiaNativeWrapper.InitPlatformNative () [0x00000] in <77657aff10f3423b8360b40ff8e9348d>:0 
  at Vuforia.PlayModeUnityPlayer.InitializePlatform () [0x00005] in <77657aff10f3423b8360b40ff8e9348d>:0 
  at Vuforia.VuforiaRuntime.InitPlatform (Vuforia.IUnityPlayer player) [0x0000b] in <77657aff10f3423b8360b40ff8e9348d>:0 
  at Vuforia.PlatformRuntimeInitialization.InitPlatform () [0x00097] in <77657aff10f3423b8360b40ff8e9348d>:0 

(Filename: <77657aff10f3423b8360b40ff8e9348d> Line: 0)

Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper.dll
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper.dll
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper.dll
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper.dll
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper
Exception in callback: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.DllNotFoundException: VuforiaWrapper
  at (wrapper managed-to-native) Vuforia.VuforiaNativeWrapper.deviceIsEyewearDevice()
  at Vuforia.VuforiaNativeWrapper.DeviceIsEyewearDevice () [0x00000] in <77657aff10f3423b8360b40ff8e9348d>:0 
  at Vuforia.Device.get_Instance () [0x00024] in <77657aff10f3423b8360b40ff8e9348d>:0 
  at Vuforia.VideoBackgroundManager.Initialize () [0x00000] in <77657aff10f3423b8360b40ff8e9348d>:0 
  at Vuforia.VuforiaARController.Awake () [0x0008b] in <77657aff10f3423b8360b40ff8e9348d>:0 
  at (wrapper managed-to-native) System.Reflection.MonoMethod.InternalInvoke(System.Reflection.MonoMethod,object,object[],System.Exception&)
  at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00032] in <791f603facc4473dab4bf640d012ebda>:0 
   --- End of inner exception stack trace ---
  at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x0004b] in <791f603facc4473dab4bf640d012ebda>:0 
  at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <791f603facc4473dab4bf640d012ebda>:0 
  at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x000e7] in <791f603facc4473dab4bf640d012ebda>:0 
  at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00008] in <791f603facc4473dab4bf640d012ebda>:0 
  at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in <791f603facc4473dab4bf640d012ebda>:0 
  at Vuforia.DelegateHelper.InvokeDelegate (System.Delegate action, System.Object[] args) [0x0000f] in <77657aff10f3423b8360b40ff8e9348d>:0 
UnityEngine.DebugLogHandler:Internal_Log(LogType, String, Object)
UnityEngine.DebugLogHandler:LogFormat(LogType, Object, String, Object[])
UnityEngine.Logger:Log(LogType, Object)
UnityEngine.Debug:LogError(Object)
Vuforia.DelegateHelper:InvokeDelegate(Delegate, Object[])
Vuforia.DelegateHelper:InvokeWithExceptionHandling(Action)
Vuforia.VuforiaBehaviour:Awake()

(Filename: C:\buildslave\unity\build\Runtime/Export/Debug.bindings.h Line: 45)

Initializing Vuforia Engine
UnityEngine.DebugLogHandler:Internal_Log(LogType, String, Object)
UnityEngine.DebugLogHandler:LogFormat(LogType, Object, String, Object[])
UnityEngine.Logger:Log(LogType, Object)
UnityEngine.Debug:Log(Object)
Vuforia.VuforiaRuntime:InitVuforia()
Vuforia.VuforiaRuntime:VuforiaInitialization()

(Filename: C:\buildslave\unity\build\Runtime/Export/Debug.bindings.h Line: 45)

Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper.dll
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper.dll
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper.dll
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper.dll
Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/libVuforiaWrapper
DllNotFoundException: VuforiaWrapper
  at (wrapper managed-to-native) Vuforia.VuforiaNativeWrapper.getVuforiaLibraryVersion(System.Text.StringBuilder,int)
  at Vuforia.VuforiaNativeWrapper.GetVuforiaLibraryVersion (System.Text.StringBuilder value, System.Int32 maxLength) [0x00000] in <77657aff10f3423b8360b40ff8e9348d>:0 
  at Vuforia.VuforiaUnity.GetVuforiaLibraryVersion () [0x0000d] in <77657aff10f3423b8360b40ff8e9348d>:0 
  at Vuforia.VuforiaRuntime.LogVersions () [0x00000] in <77657aff10f3423b8360b40ff8e9348d>:0 
  at Vuforia.VuforiaRuntime.InitVuforia () [0x00012] in <77657aff10f3423b8360b40ff8e9348d>:0 
  at Vuforia.VuforiaRuntime.VuforiaInitialization () [0x0001d] in <77657aff10f3423b8360b40ff8e9348d>:0 

(Filename: <77657aff10f3423b8360b40ff8e9348d> Line: 0)

Vuforia Engine cannot be started before it is initialized.
 Please disable Delayed Initializationin the Vuforia configuration or initialize Vuforia manually with the VuforiaRuntime-class.
UnityEngine.DebugLogHandler:Internal_Log(LogType, String, Object)
UnityEngine.DebugLogHandler:LogFormat(LogType, Object, String, Object[])
UnityEngine.Logger:Log(LogType, Object)
UnityEngine.Debug:LogError(Object)
Vuforia.VuforiaARController:Start()
System.Reflection.MonoMethod:InternalInvoke(Object, Object[], Exception&)
System.Reflection.MonoMethod:Invoke(Object, BindingFlags, Binder, Object[], CultureInfo)
System.Reflection.MethodBase:Invoke(Object, Object[])
System.Delegate:DynamicInvokeImpl(Object[])
System.MulticastDelegate:DynamicInvokeImpl(Object[])
System.Delegate:DynamicInvoke(Object[])
Vuforia.DelegateHelper:InvokeDelegate(Delegate, Object[])
Vuforia.DelegateHelper:InvokeWithExceptionHandling(Action)
Vuforia.VuforiaBehaviour:Start()

(Filename: C:\buildslave\unity\build\Runtime/Export/Debug.bindings.h Line: 45)

Answer 1

錯誤DllNotFoundException: VuforiaWrapper表明 Unity 正在嘗試加載 dll，但 DLL 似乎在加載的位置不存在。

閱讀錯誤，有很多形式：

Fallback handler could not load library C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono/VuforiaWrapper.dll

您是否檢查了路徑“C:/Visual Studio Projects/UnityHololens2018_4_11VuforiaUpdate8_5_8_64_86_Test1/build/bin/UnityHololens2018_4_11TestVuforiaUpdate8_5_8_Data/Mono”以驗證文件是否存在？ 似乎該錯誤消息來自您的計算機上本地運行，因此您應該能夠檢查目錄。

通常當我看到 dll not found 錯誤時，這是因為我的插件 dll 配置不正確。 檢查插件文檔並仔細檢查 vuforia dll 是否配置為部署在您的機器架構和 HoloLens 架構（即 x86）上。