MixedRealityInputSystem error; Failed to start the Input System! No controllers visible

[milos12345]

Describe the bug

After Mixed Reality Toolkit Configure errors appear. Unity Plays but no controllers are visible

Failed to register the MixedRealityInputSystem service: System.Exception - The Input system is missing the required GazeProviderType!
  at XRTK.Services.InputSystem.MixedRealityInputSystem..ctor (XRTK.Definitions.InputSystem.MixedRealityInputSystemProfile profile) [0x000da] in D:\M\Template\XRTKTemplate12b\Library\PackageCache\com.xrtk.core@0.1.20\Services\InputSystem\MixedRealityInputSystem.cs:44 
  at (wrapper managed-to-native) System.Reflection.MonoCMethod.InternalInvoke(System.Reflection.MonoCMethod,object,object[],System.Exception&)
  at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00002] in <7d97106330684add86d080ecf65bfe69>:0 
UnityEngine.Debug:LogError(Object)
XRTK.Services.MixedRealityToolkit:CreateAndRegisterService(Type, SupportedPlatforms, Object[]) (at Library/PackageCache/com.xrtk.core@0.1.20/Services/MixedRealityToolkit.cs:870)
XRTK.Services.MixedRealityToolkit:CreateAndRegisterService(Type, Object[]) (at Library/PackageCache/com.xrtk.core@0.1.20/Services/MixedRealityToolkit.cs:820)
XRTK.Services.MixedRealityToolkit:InitializeServiceLocator() (at Library/PackageCache/com.xrtk.core@0.1.20/Services/MixedRealityToolkit.cs:368)
XRTK.Services.MixedRealityToolkit:ResetConfiguration(MixedRealityToolkitConfigurationProfile) (at Library/PackageCache/com.xrtk.core@0.1.20/Services/MixedRealityToolkit.cs:117)
XRTK.Inspectors.MixedRealityToolkitInspector:OnInspectorGUI() (at Library/PackageCache/com.xrtk.core@0.1.20/Inspectors/MixedRealityToolkitInspector.cs:99)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

Failed to start the Input System!
UnityEngine.Debug:LogError(Object)
XRTK.Services.MixedRealityToolkit:InitializeServiceLocator() (at Library/PackageCache/com.xrtk.core@0.1.20/Services/MixedRealityToolkit.cs:403)
XRTK.Services.MixedRealityToolkit:ResetConfiguration(MixedRealityToolkitConfigurationProfile) (at Library/PackageCache/com.xrtk.core@0.1.20/Services/MixedRealityToolkit.cs:117)
XRTK.Inspectors.MixedRealityToolkitInspector:OnInspectorGUI() (at Library/PackageCache/com.xrtk.core@0.1.20/Inspectors/MixedRealityToolkitInspector.cs:99)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

Unable to register a service with a null concrete IMixedRealitySpatialObserverDataProvider type.
UnityEngine.Debug:LogError(Object)
XRTK.Services.MixedRealityToolkit:CreateAndRegisterService(Type, SupportedPlatforms, Object[]) (at Library/PackageCache/com.xrtk.core@0.1.20/Services/MixedRealityToolkit.cs:852)
XRTK.Services.MixedRealityToolkit:InitializeServiceLocator() (at Library/PackageCache/com.xrtk.core@0.1.20/Services/MixedRealityToolkit.cs:434)
XRTK.Services.MixedRealityToolkit:ResetConfiguration(MixedRealityToolkitConfigurationProfile) (at Library/PackageCache/com.xrtk.core@0.1.20/Services/MixedRealityToolkit.cs:117)
XRTK.Inspectors.MixedRealityToolkitInspector:OnInspectorGUI() (at Library/PackageCache/com.xrtk.core@0.1.20/Inspectors/MixedRealityToolkitInspector.cs:99)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

Failed to start Lumin Spatial Observer Data Provider!
UnityEngine.Debug:LogError(Object)
XRTK.Services.MixedRealityToolkit:InitializeServiceLocator() (at Library/PackageCache/com.xrtk.core@0.1.20/Services/MixedRealityToolkit.cs:441)
XRTK.Services.MixedRealityToolkit:ResetConfiguration(MixedRealityToolkitConfigurationProfile) (at Library/PackageCache/com.xrtk.core@0.1.20/Services/MixedRealityToolkit.cs:117)
XRTK.Inspectors.MixedRealityToolkitInspector:OnInspectorGUI() (at Library/PackageCache/com.xrtk.core@0.1.20/Inspectors/MixedRealityToolkitInspector.cs:99)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

Additional error that appearted once Core has been added

SocketException: An attempt was made to access a socket in a way forbidden by its access permissions.

System.Net.Sockets.Socket.Bind (System.Net.EndPoint localEP) (at <0079a30f96a047348857e1cecc6c638a>:0)
SyntaxTree.VisualStudio.Unity.Messaging.UdpSocket.Bind (System.Net.IPAddress address, System.Int32 port) (at <7bfe50ea87ae444bb97944401234ceb7>:0)
SyntaxTree.VisualStudio.Unity.Messaging.Messager..ctor (System.Int32 port) (at <7bfe50ea87ae444bb97944401234ceb7>:0)
SyntaxTree.VisualStudio.Unity.Messaging.Messager.BindTo (System.Int32 port) (at <7bfe50ea87ae444bb97944401234ceb7>:0)
SyntaxTree.VisualStudio.Unity.Bridge.VisualStudioIntegration+<>c__DisplayClass9_0.<.cctor>b__0 () (at <843b7c5ab4d34b2491669c24f4d94522>:0)
SyntaxTree.VisualStudio.Unity.Bridge.Project+<>c__DisplayClass40_0.<RunOnceOnUpdate>b__0 () (at <843b7c5ab4d34b2491669c24f4d94522>:0)
UnityEditor.EditorApplication.Internal_CallUpdateFunctions () (at C:/buildslave/unity/build/Editor/Mono/EditorApplication.cs:200)

To Reproduce

1. Start Hub
2. New Project with Unity 2019.1.14f1; 3D
3. Modify manifest to include 0.1.20
4. Uppon import there is a warning:
   An AssetDatabase Refresh is pending after a successful Package Manager request. You should not call AssetDatabase.Refresh at this time because it can lead to import-related errors.
   It is not clear if one should wait for something
5. Waited for 3 minutes unity manually restarted; warning is gone
6. Through PM added com.xrtk.wmr 0.1.6
7. Toolkit Configure at this point creates Active profile: None
8. Deleted MixedRealityToolkit and MixedRealityPlayspace
9. Imported xrtk.SDK and received errors reported in MixedRealityInputSystem error; Failed to start the Input System! No controllers visible #90
10. Configure successful (after the Unity Crash), but play not possible due to SDK errors
    Additional errors appear (listed above)
11. If I remove the SDK through PM the Unity Plays, but these errors remain and controllers are not visible in scene

Expected behavior

No errors; Motion Controllers registered

Information(please complete the following information):

• Version 2019.1.14f1
• Release 0.1.20

Additional context

WMR Headset, OpenVR

[StephenHodgson]

The SDK release for com.xrtk.core 0.1.20 has not been release yet. You'll have to roll back to 0.1.19

See #74