# Build errors possibly relating to OpenXR **URL:** \ **Category:** Unreal Engine\ **Tags:** openxr, build-error\ **Created:** [February 12, 2024, 3:18pm UTC](https://forum.magicleap.cloud/t/build-errors-possibly-relating-to-openxr/3170 "2024-02-12T15:18:33Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![nicholas.willis](https://avatars.discourse-cdn.com/v4/letter/n/f05b48/32.png) [@nicholas.willis](https://forum.magicleap.cloud/u/nicholas.willis)\ **Post date:** [February 12, 2024, 3:18pm UTC](https://forum.magicleap.cloud/t/build-errors-possibly-relating-to-openxr/3170/1 "2024-02-12T15:18:33Z")
Hello, I've followed the [Getting Started With Unreal Engine guide](https://developer-docs.magicleap.cloud/docs/guides/unreal/unreal-getting-started/) and VS2022 threw the following errors (see log below) after a failed build. It looks like most or all errors have to do with OpenXR in some way. Looking at the guide I don't see any steps I need to take regarding OpenXR so I am not sure what I am missing here or what I need to change before trying another build. The only things I did differently from the guide are: - I used the Windows 11 SDK (10.0.22621.0) component for VS2022 while the guide suggests the Windows 10 SDK. I found another dev who was able to successfully build the ML2 fork of UE 5.3 using the Windows 11 SDK, however. - I added a Windows environment variable named "ANDROID\_HOME" with the value being the path to the Android SDK ("C:\Users\MyUserName\AppData\Local\Android\Sdk") after AndroidSetup.bat threw an error about that missing environment variable and path. This wasn't documented in the guide, but did fix that error. I don't see anything in the error log that indicate my two deviations from the guide may have caused the failed build. If anyone can help shed some light as to what might I might be doing wrong, or can at least point me in the general direction of what I need to look in to I would be very grateful. Thank you! Magic Leap SDK version: 1.2.0 Unreal Engine version: 5.3 ML2 OS version: N/A Here are the error messages from the failed build log in VS2022: | Code | Description | Project | File | Line | | --- | --- | --- | --- | --- | | C2065 | 'XR\_PLANE\_DETECTOR\_SEMANTIC\_TYPE\_CEILING\_EXT': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 69 | | C2065 | 'XR\_EXT\_HAND\_INTERACTION\_EXTENSION\_NAME': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapHandInteraction\Source\MagicLeapHandInteraction\Private\MagicLeapHandInteraction.cpp | 60 | | C3646 | 'PlaneDetector': unknown override specifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Public\MagicLeapPlanesComponent.h | 60 | | C2059 | syntax error: '=' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Public\MagicLeapPlanesComponent.h | 60 | | C2238 | unexpected token(s) preceding ';' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Public\MagicLeapPlanesComponent.h | 60 | | C3646 | 'CreatePlanesDetector': unknown override specifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Public\IMagicLeapPlanesModule.h | 31 | | C2062 | type 'bool' unexpected | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Public\IMagicLeapPlanesModule.h | 31 | | C2238 | unexpected token(s) preceding ';' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Public\IMagicLeapPlanesModule.h | 31 | | C2061 | syntax error: identifier 'XrPlaneDetectorEXT' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Public\IMagicLeapPlanesModule.h | 32 | | C2061 | syntax error: identifier 'XrPlaneDetectorEXT' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Public\IMagicLeapPlanesModule.h | 33 | | C3646 | 'CapabilityFlags': unknown override specifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 11 | | C2059 | syntax error: '=' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 11 | | C2238 | unexpected token(s) preceding ';' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 11 | | C3646 | 'xrCreatePlaneDetector': unknown override specifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 13 | | C2059 | syntax error: '=' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 13 | | C2238 | unexpected token(s) preceding ';' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 13 | | C3646 | 'xrDestroyPlaneDetector': unknown override specifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 14 | | C2059 | syntax error: '=' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 14 | | C2238 | unexpected token(s) preceding ';' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 14 | | C3646 | 'xrBeginPlaneDetection': unknown override specifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 15 | | C2059 | syntax error: '=' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 15 | | C2238 | unexpected token(s) preceding ';' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 15 | | C3646 | 'xrGetPlaneDetectionState': unknown override specifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 16 | | C2059 | syntax error: '=' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 16 | | C2238 | unexpected token(s) preceding ';' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 16 | | C3646 | 'xrGetPlaneDetections': unknown override specifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 17 | | C2059 | syntax error: '=' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 17 | | C2238 | unexpected token(s) preceding ';' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 17 | | C3646 | 'xrGetPlanePolygonBuffer': unknown override specifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 18 | | C2059 | syntax error: '=' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 18 | | C2238 | unexpected token(s) preceding ';' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 18 | | C2065 | 'XrPlaneDetectorEXT': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 20 | | C2065 | 'XrPlaneDetectorCreateInfoEXT': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 20 | | C2923 | 'TMap': 'XrPlaneDetectorEXT' is not a valid template type argument for parameter 'InKeyType' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 20 | | C2923 | 'TMap': 'XrPlaneDetectorCreateInfoEXT' is not a valid template type argument for parameter 'InValueType' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 20 | | C2976 | 'TMap': too few template arguments | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 20 | | C2955 | 'TMap': use of class template requires template argument list | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 20 | | C2065 | 'XrPlaneDetectorEXT': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 21 | | C2923 | 'TMap': 'XrPlaneDetectorEXT' is not a valid template type argument for parameter 'InKeyType' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 21 | | C2976 | 'TMap': too few template arguments | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 21 | | C2955 | 'TMap': use of class template requires template argument list | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 21 | | C2061 | syntax error: identifier 'XrPlaneDetectorEXT' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 23 | | C2061 | syntax error: identifier 'XrPlaneDetectorEXT' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 24 | | C3646 | 'CreatePlanesDetector': unknown override specifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 49 | | C2059 | syntax error: '(' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 49 | | C2238 | unexpected token(s) preceding ';' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 49 | | C2061 | syntax error: identifier 'XrPlaneDetectorEXT' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 50 | | C2061 | syntax error: identifier 'XrPlaneDetectorEXT' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.h | 51 | | C4430 | missing type specifier - int assumed. Note: C++ does not support default-int | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 9 | | C2146 | syntax error: missing ';' before identifier 'ToXrOrientation' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 9 | | C4430 | missing type specifier - int assumed. Note: C++ does not support default-int | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 10 | | C2065 | 'XR\_PLANE\_DETECTOR\_ORIENTATION\_HORIZONTAL\_UPWARD\_EXT': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 14 | | C2065 | 'XR\_PLANE\_DETECTOR\_ORIENTATION\_HORIZONTAL\_DOWNWARD\_EXT': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 16 | | C2065 | 'XR\_PLANE\_DETECTOR\_ORIENTATION\_VERTICAL\_EXT': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 18 | | C2065 | 'XR\_PLANE\_DETECTOR\_ORIENTATION\_ARBITRARY\_EXT': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 20 | | C2065 | 'XR\_PLANE\_DETECTOR\_ORIENTATION\_MAX\_ENUM\_EXT': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 22 | | C2923 | 'TArray': 'MagicLeapPlanes::XrPlaneDetectorOrientationEXT' is not a valid template type argument for parameter 'InElementType' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 25 | | C2976 | 'TArray': too few template arguments | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 25 | | C2955 | 'TArray': use of class template requires template argument list | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 25 | | C2079 | 'MagicLeapPlanes::ToXrOrientations' uses undefined class 'TArray' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 25 | | C2923 | 'TArray': 'MagicLeapPlanes::XrPlaneDetectorOrientationEXT' is not a valid template type argument for parameter 'InElementType' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 27 | | C2976 | 'TArray': too few template arguments | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 27 | | C2641 | cannot deduce template arguments for 'TArray' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 27 | | C2783 | 'TArray\ TArray(void)': could not deduce template argument for 'InElementType' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 27 | | C2780 | 'TArray\ TArray(TArray\)': expects 1 arguments - 0 provided | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 27 | | C2065 | 'XR\_PLANE\_DETECTOR\_ORIENTATION\_MAX\_ENUM\_EXT': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 36 | | C2672 | 'MoveTemp': no matching overloaded function found | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 43 | | C2146 | syntax error: missing ')' before identifier 'XrOrientation' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 46 | | C2143 | syntax error: missing ';' before '{' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 47 | | C2447 | '{': missing function header (old-style formal list?) | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 47 | | C4430 | missing type specifier - int assumed. Note: C++ does not support default-int | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 64 | | C2146 | syntax error: missing ';' before identifier 'ToXrSemantic' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 64 | | C4430 | missing type specifier - int assumed. Note: C++ does not support default-int | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 65 | | C2065 | 'XR\_PLANE\_DETECTOR\_SEMANTIC\_TYPE\_FLOOR\_EXT': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 71 | | C2065 | 'XR\_PLANE\_DETECTOR\_SEMANTIC\_TYPE\_WALL\_EXT': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 73 | | C2065 | 'XR\_PLANE\_DETECTOR\_SEMANTIC\_TYPE\_PLATFORM\_EXT': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 75 | | C2065 | 'XR\_PLANE\_DETECTOR\_SEMANTIC\_TYPE\_UNDEFINED\_EXT': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 77 | | C2146 | syntax error: missing ')' before identifier 'XrSemantic' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 80 | | C2143 | syntax error: missing ';' before '{' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 81 | | C2447 | '{': missing function header (old-style formal list?) | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesSdkTypeConversions.h | 81 | | C2065 | 'PlaneDetector': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesComponent.cpp | 26 | | C2065 | 'PlaneDetector': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesComponent.cpp | 73 | | C2065 | 'PlaneDetector': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesComponent.cpp | 75 | | C2039 | 'CreatePlanesDetector': is not a member of 'IMagicLeapPlanesModule' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesComponent.cpp | 75 | | C2065 | 'PlaneDetector': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesComponent.cpp | 77 | | C2065 | 'PlaneDetector': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesComponent.cpp | 89 | | C2065 | 'PlaneDetector': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesComponent.cpp | 98 | | C2065 | 'XR\_EXT\_PLANE\_DETECTION\_EXTENSION\_NAME': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.cpp | 24 | | C2065 | 'XR\_EXT\_PLANE\_DETECTION\_EXTENSION\_NAME': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.cpp | 40 | | C2065 | 'XrSystemPlaneDetectionPropertiesEXT': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.cpp | 42 | | C2146 | syntax error: missing ';' before identifier 'SystemPlaneDetectionProperties' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.cpp | 42 | | C2065 | 'SystemPlaneDetectionProperties': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.cpp | 42 | | C2065 | 'SystemPlaneDetectionProperties': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.cpp | 43 | | C2065 | 'XR\_TYPE\_SYSTEM\_PLANE\_DETECTION\_PROPERTIES\_EXT': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.cpp | 43 | | C2065 | 'SystemPlaneDetectionProperties': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.cpp | 47 | | C1003 | error count exceeds 100; stopping compilation | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapPlanes\Source\MagicLeapPlanes\Private\MagicLeapPlanesModule.cpp | 47 | | C3646 | 'xrEnableUserCalibrationEventsML': unknown override specifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.h | 15 | | C2059 | syntax error: '=' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.h | 15 | | C2238 | unexpected token(s) preceding ';' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.h | 15 | | C2065 | 'XrHeadsetFitStatusML': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationSdkTypeConversions.h | 8 | | C2146 | syntax error: missing ')' before identifier 'HeadsetFit' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationSdkTypeConversions.h | 8 | | C2143 | syntax error: missing ';' before '{' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationSdkTypeConversions.h | 9 | | C2447 | '{': missing function header (old-style formal list?) | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationSdkTypeConversions.h | 9 | | C2371 | 'MagicLeapUserCalibration::ConvertType': redefinition; different basic types | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationSdkTypeConversions.h | 26 | | C2065 | 'XrEyeCalibrationStatusML': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationSdkTypeConversions.h | 26 | | C2146 | syntax error: missing ')' before identifier 'EyeCalibration' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationSdkTypeConversions.h | 26 | | C2143 | syntax error: missing ';' before '{' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationSdkTypeConversions.h | 27 | | C2447 | '{': missing function header (old-style formal list?) | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationSdkTypeConversions.h | 27 | | C2065 | 'XR\_ML\_USER\_CALIBRATION\_EXTENSION\_NAME': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 27 | | C2065 | 'XR\_ML\_USER\_CALIBRATION\_EXTENSION\_NAME': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 35 | | C2065 | 'xrEnableUserCalibrationEventsML': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 38 | | C3536 | 'Result': cannot be used before it is initialized | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 39 | | C2664 | 'const TCHAR \*OpenXRResultToString(XrResult)': cannot convert argument 1 from 'int' to 'XrResult' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 41 | | C2065 | 'XrUserCalibrationEnableEventsInfoML': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 54 | | C2146 | syntax error: missing ';' before identifier 'EnableEventsInfo' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 54 | | C2065 | 'EnableEventsInfo': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 54 | | C2065 | 'XR\_TYPE\_USER\_CALIBRATION\_ENABLE\_EVENTS\_INFO\_ML': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 54 | | C2065 | 'EnableEventsInfo': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 55 | | C2065 | 'EnableEventsInfo': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 56 | | C3861 | 'xrEnableUserCalibrationEventsML': identifier not found | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 56 | | C2065 | 'XR\_TYPE\_EVENT\_DATA\_HEADSET\_FIT\_CHANGED\_ML': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 63 | | C2131 | expression did not evaluate to a constant | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 63 | | C4430 | missing type specifier - int assumed. Note: C++ does not support default-int | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 65 | | C2146 | syntax error: missing '\>' before identifier 'XrEventDataHeadsetFitChangedML' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 65 | | C3536 | 'HeadsetFitChanged': cannot be used before it is initialized | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 66 | | C2065 | 'ConvertType': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 66 | | C2065 | 'XR\_TYPE\_EVENT\_DATA\_EYE\_CALIBRATION\_CHANGED\_ML': undeclared identifier | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 75 | | C2131 | expression did not evaluate to a constant | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 75 | | C4430 | missing type specifier - int assumed. Note: C++ does not support default-int | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 78 | | C2146 | syntax error: missing '\>' before identifier 'XrEventDataEyeCalibrationChangedML' | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 78 | | C2051 | case expression not constant | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 63 | | C2051 | case expression not constant | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 75 | | C4065 | switch statement contains 'default' but no 'case' labels | UE5 | D:\_Projects\Unreal\_5-3\_ML2\Engine\Plugins\Runtime\MagicLeap\v1.2.0\MagicLeapUserCalibration\Source\MagicLeapUserCalibration\Private\MagicLeapUserCalibrationModule.cpp | 87 | | MSB3073 | The command ....\Build\BatchFiles\Build.bat -Target=UnrealEditor Win64 Development -Target=ShaderCompileWorker Win64 Development -Quiet -WaitMutex -FromMsBuild exited with code 6. | UE5 | C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.MakeFile.Targets | 44 | ---
**Author:** ![aheaney](https://avatars.discourse-cdn.com/v4/letter/a/f08c70/32.png) [@aheaney](https://forum.magicleap.cloud/u/aheaney)\ **Post date:** [February 13, 2024, 5:45am UTC](https://forum.magicleap.cloud/t/build-errors-possibly-relating-to-openxr/3170/2 "2024-02-13T05:45:37Z")
Hi Nicholas, Welcome to the MagicLeap developer forums! Sorry about the trouble building Unreal! There was a change that was committed to the 5.3-release-ml2 branch last week to change the OpenXR headers that would most likely cause the break. The change was just reverted earlier today- [https://github.com/MagicLeapUnreal/UnrealEngine/commit/08ac95ed90e971cc849bf76d43b287ec259154dc](https://github.com/MagicLeapUnreal/UnrealEngine/commit/08ac95ed90e971cc849bf76d43b287ec259154dc) Sorry about that! If you run git pull, you should pickup the commit to revert the change to the headers. You should be able to build after that. Please let us know if you still have any trouble. Best, Adam ---
**Author:** ![system](https://us1.discourse-cdn.com/flex019/uploads/magicleap1/original/1X/bd9b737a4d45ea243aa7eb177d60a773b806899a.svg) [@system](https://forum.magicleap.cloud/u/system)\ **Post date:** [February 28, 2024, 5:45am UTC](https://forum.magicleap.cloud/t/build-errors-possibly-relating-to-openxr/3170/3 "2024-02-28T05:45:38Z")
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