Android build instructions out of date

[dabulla]

cd src/conformance
./gradlew clean && ./gradlew build

there is no folder conformance.

I found gradle in hello_xr but building it under arch linux currently fails with this exception for me:

BUG! exception in phase 'semantic analysis' in source unit '_BuildScript_' Unsupported class file major version 65

I try to build OpenXR for Meta Quests.

[rpavlik]

What file has those build instructions? Those are only for the monorepo and OpenXR-CTS.

However, ./gradlew assembleVulkanDebug in src/tests/hello_xr should build a hello_xr APK pre-set to Vulkan. If you're trying to build the loader, you don't need to, it's published to maven central, but the loader on its own may be built with maintainer-scripts/build-aar.sh

[rpavlik-bot]

An issue (number 2230) has been filed to correspond to this issue in the internal Khronos GitLab (Khronos members only: KHR:openxr/openxr#2230 ), to facilitate working group processes.

This GitHub issue will continue to be the main site of discussion.

[SafariMonkey]

The offending line seems to be

OpenXR-SDK-Source/BUILDING.md

Line 163 in 455583c

cd src/conformance

[chaask]

Hi, I'm also facing this issue and tried ./gradlew assembleVulkanDebug as suggested by @rpavlik. However, now, I see a different issue. Some errors indicate that python is not available on my system. But I've python 3.12.8. Is there anyway to overcome this? BTW, I had to upgrade gradle to 8.9 from 7.5

> Task :configureCMakeDebug[arm64-v8a]-2
C/C++: CMake Error at src/CMakeLists.txt:433 (message):
C/C++:   Python 3 not found, but pre-generated
C/C++:   C:/code/github/openxr/OpenXR-SDK-Source/src/xr_generated_dispatch_table.h
C/C++:   not found
C/C++: Call Stack (most recent call first):
C/C++:   src/CMakeLists.txt:494 (run_xr_xml_generate)

> Task :configureCMakeDebug[arm64-v8a]-2 FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':configureCMakeDebug[arm64-v8a]-2'.
> [CXX1429] error when building with cmake using C:\code\github\openxr\OpenXR-SDK-Source\CMakeLists.txt: -- The C compiler identification is Clang 12.0.9
  -- The CXX compiler identification is Clang 12.0.9
  -- Detecting C compiler ABI info
  -- Detecting C compiler ABI info - done
  -- Check for working C compiler: C:/Android/ndk/23.2.8568313/toolchains/llvm/prebuilt/windows-x86_64/bin/clang.exe - skipped
  -- Detecting C compile features
  -- Detecting C compile features - done
  -- Detecting CXX compiler ABI info
  -- Detecting CXX compiler ABI info - done
  -- Check for working CXX compiler: C:/Android/ndk/23.2.8568313/toolchains/llvm/prebuilt/windows-x86_64/bin/clang++.exe - skipped
  -- Detecting CXX compile features
  -- Detecting CXX compile features - done
  -- Could NOT find Python3 (missing: Python3_EXECUTABLE Interpreter)
  -- Performing Test HAVE_FILESYSTEM_IN_STD
  -- Performing Test HAVE_FILESYSTEM_IN_STD - Failed
  -- Performing Test HAVE_FILESYSTEM_IN_STDEXPERIMENTAL
  -- Performing Test HAVE_FILESYSTEM_IN_STDEXPERIMENTAL - Failed
  -- Performing Test HAVE_FILESYSTEM_IN_STD_17
  -- Performing Test HAVE_FILESYSTEM_IN_STD_17 - Failed
  -- Performing Test HAVE_FILESYSTEM_WITHOUT_LIB
  -- Performing Test HAVE_FILESYSTEM_WITHOUT_LIB - Failed
  -- Performing Test HAVE_FILESYSTEM_NEEDING_LIBSTDCXXFS
  -- Performing Test HAVE_FILESYSTEM_NEEDING_LIBSTDCXXFS - Failed
  -- Performing Test HAVE_FILESYSTEM_NEEDING_LIBCXXFS
  -- Performing Test HAVE_FILESYSTEM_NEEDING_LIBCXXFS - Failed
  -- Found OpenGLES: C:/Android/ndk/23.2.8568313/toolchains/llvm/prebuilt/windows-x86_64/sysroot/usr/lib/aarch64-linux-android/24/libGLESv3.so  found components: V3 V2
  -- Performing Test HAVE_EGL
  -- Performing Test HAVE_EGL - Success
  -- Found EGL: C:/Android/ndk/23.2.8568313/toolchains/llvm/prebuilt/windows-x86_64/sysroot/usr/include (found version "1.5")
  -- Enabling OpenGL|ES support
  -- Found Vulkan: C:/Android/ndk/23.2.8568313/toolchains/llvm/prebuilt/windows-x86_64/sysroot/usr/lib/aarch64-linux-android/24/libvulkan.so
  -- Enabling Vulkan support
  -- Looking for pthread.h
  -- Looking for pthread.h - found
  -- Performing Test CMAKE_HAVE_LIBC_PTHREAD
  -- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
  -- Looking for pthread_create in pthreads
  -- Looking for pthread_create in pthreads - not found
  -- Looking for pthread_create in pthread
  -- Looking for pthread_create in pthread - not found
  -- Check if compiler accepts -pthread
  -- Check if compiler accepts -pthread - yes
  -- Found Threads: TRUE
  -- Could NOT find JsonCpp (missing: JsonCpp_INCLUDE_DIR JsonCpp_LIBRARY)
  -- Enabling OpenGL support in hello_xr, loader_test, and conformance, if configured
  -- Found glslc: C:/Android/ndk/23.2.8568313/shader-tools/windows-x86_64/glslc.exe
  -- Looking for secure_getenv
  -- Looking for secure_getenv - not found
  -- Looking for __secure_getenv
  -- Looking for __secure_getenv - not found
  -- Looking for timespec_get
  -- Looking for timespec_get - not found
  -- OpenXR 1.1.43
  -- Configuring incomplete, errors occurred!
  See also "C:/code/github/openxr/OpenXR-SDK-Source/src/tests/hello_xr/.cxx/Debug/12y1h6y6/arm64-v8a/CMakeFiles/CMakeOutput.log".
  See also "C:/code/github/openxr/OpenXR-SDK-Source/src/tests/hello_xr/.cxx/Debug/12y1h6y6/arm64-v8a/CMakeFiles/CMakeError.log".

  C++ build system [configure] failed while executing:
      @echo off
      "C:\\Android\\cmake\\3.22.1\\bin\\cmake.exe" ^
        "-HC:\\code\\github\\openxr\\OpenXR-SDK-Source" ^
        "-DCMAKE_SYSTEM_NAME=Android" ^
        "-DCMAKE_EXPORT_COMPILE_COMMANDS=ON" ^
        "-DCMAKE_SYSTEM_VERSION=24" ^
        "-DANDROID_PLATFORM=android-24" ^
        "-DANDROID_ABI=arm64-v8a" ^
        "-DCMAKE_ANDROID_ARCH_ABI=arm64-v8a" ^
        "-DANDROID_NDK=C:\\Android\\ndk\\23.2.8568313" ^
        "-DCMAKE_ANDROID_NDK=C:\\Android\\ndk\\23.2.8568313" ^
        "-DCMAKE_TOOLCHAIN_FILE=C:\\Android\\ndk\\23.2.8568313\\build\\cmake\\android.toolchain.cmake" ^
        "-DCMAKE_MAKE_PROGRAM=C:\\Android\\cmake\\3.22.1\\bin\\ninja.exe" ^
        "-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:\\code\\github\\openxr\\OpenXR-SDK-Source\\src\\tests\\hello_xr\\build\\intermediates\\cxx\\Debug\\12y1h6y6\\obj\\arm64-v8a" ^
        "-DCMAKE_RUNTIME_OUTPUT_DIRECTORY=C:\\code\\github\\openxr\\OpenXR-SDK-Source\\src\\tests\\hello_xr\\build\\intermediates\\cxx\\Debug\\12y1h6y6\\obj\\arm64-v8a" ^
        "-DCMAKE_BUILD_TYPE=Debug" ^
        "-BC:\\code\\github\\openxr\\OpenXR-SDK-Source\\src\\tests\\hello_xr\\.cxx\\Debug\\12y1h6y6\\arm64-v8a" ^
        -GNinja ^
        "-DBUILD_API_LAYERS=OFF" ^
        "-DBUILD_TESTS=ON" ^
        "-DBUILD_LOADER=ON" ^
        "-DBUILD_CONFORMANCE_TESTS=OFF" ^
        "-DBUILD_ALL_EXTENSIONS=ON" ^
        "-DHELLOXR_DEFAULT_GRAPHICS_PLUGIN=Vulkan"
    from C:\code\github\openxr\OpenXR-SDK-Source\src\tests\hello_xr
  CMake Error at src/CMakeLists.txt:433 (message):
    Python 3 not found, but pre-generated
    C:/code/github/openxr/OpenXR-SDK-Source/src/xr_generated_dispatch_table.h
    not found
  Call Stack (most recent call first):
    src/CMakeLists.txt:494 (run_xr_xml_generate)

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.

Deprecated Gradle features were used in this build, making it incompatible with Gradle 9.0.

You can use '--warning-mode all' to show the individual deprecation warnings and determine if they come from your own scripts or plugins.

For more on this, please refer to https://docs.gradle.org/8.9/userguide/command_line_interface.html#sec:command_line_warnings in the Gradle documentation.

BUILD FAILED in 7s
21 actionable tasks: 21 executed

C:\code\github\openxr\OpenXR-SDK-Source\src\tests\hello_xr>python --version
Python 3.12.8

[rpavlik]

I am assuming you probably do no

Hi, I'm also facing this issue and tried ./gradlew assembleVulkanDebug as suggested by @rpavlik. However, now, I see a different issue. Some errors indicate that python is not available on my system. But I've python 3.12.8. Is there anyway to overcome this? BTW, I had to upgrade gradle to 8.9 from 7.5

> Task :configureCMakeDebug[arm64-v8a]-2
C/C++: CMake Error at src/CMakeLists.txt:433 (message):
C/C++:   Python 3 not found, but pre-generated
C/C++:   C:/code/github/openxr/OpenXR-SDK-Source/src/xr_generated_dispatch_table.h
C/C++:   not found
C/C++: Call Stack (most recent call first):
C/C++:   src/CMakeLists.txt:494 (run_xr_xml_generate)

> Task :configureCMakeDebug[arm64-v8a]-2 FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':configureCMakeDebug[arm64-v8a]-2'.
> [CXX1429] error when building with cmake using C:\code\github\openxr\OpenXR-SDK-Source\CMakeLists.txt: -- The C compiler identification is Clang 12.0.9
  -- The CXX compiler identification is Clang 12.0.9
  -- Detecting C compiler ABI info
  -- Detecting C compiler ABI info - done
  -- Check for working C compiler: C:/Android/ndk/23.2.8568313/toolchains/llvm/prebuilt/windows-x86_64/bin/clang.exe - skipped
  -- Detecting C compile features
  -- Detecting C compile features - done
  -- Detecting CXX compiler ABI info
  -- Detecting CXX compiler ABI info - done
  -- Check for working CXX compiler: C:/Android/ndk/23.2.8568313/toolchains/llvm/prebuilt/windows-x86_64/bin/clang++.exe - skipped
  -- Detecting CXX compile features
  -- Detecting CXX compile features - done
  -- Could NOT find Python3 (missing: Python3_EXECUTABLE Interpreter)
  -- Performing Test HAVE_FILESYSTEM_IN_STD
  -- Performing Test HAVE_FILESYSTEM_IN_STD - Failed
  -- Performing Test HAVE_FILESYSTEM_IN_STDEXPERIMENTAL
  -- Performing Test HAVE_FILESYSTEM_IN_STDEXPERIMENTAL - Failed
  -- Performing Test HAVE_FILESYSTEM_IN_STD_17
  -- Performing Test HAVE_FILESYSTEM_IN_STD_17 - Failed
  -- Performing Test HAVE_FILESYSTEM_WITHOUT_LIB
  -- Performing Test HAVE_FILESYSTEM_WITHOUT_LIB - Failed
  -- Performing Test HAVE_FILESYSTEM_NEEDING_LIBSTDCXXFS
  -- Performing Test HAVE_FILESYSTEM_NEEDING_LIBSTDCXXFS - Failed
  -- Performing Test HAVE_FILESYSTEM_NEEDING_LIBCXXFS
  -- Performing Test HAVE_FILESYSTEM_NEEDING_LIBCXXFS - Failed
  -- Found OpenGLES: C:/Android/ndk/23.2.8568313/toolchains/llvm/prebuilt/windows-x86_64/sysroot/usr/lib/aarch64-linux-android/24/libGLESv3.so  found components: V3 V2
  -- Performing Test HAVE_EGL
  -- Performing Test HAVE_EGL - Success
  -- Found EGL: C:/Android/ndk/23.2.8568313/toolchains/llvm/prebuilt/windows-x86_64/sysroot/usr/include (found version "1.5")
  -- Enabling OpenGL|ES support
  -- Found Vulkan: C:/Android/ndk/23.2.8568313/toolchains/llvm/prebuilt/windows-x86_64/sysroot/usr/lib/aarch64-linux-android/24/libvulkan.so
  -- Enabling Vulkan support
  -- Looking for pthread.h
  -- Looking for pthread.h - found
  -- Performing Test CMAKE_HAVE_LIBC_PTHREAD
  -- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
  -- Looking for pthread_create in pthreads
  -- Looking for pthread_create in pthreads - not found
  -- Looking for pthread_create in pthread
  -- Looking for pthread_create in pthread - not found
  -- Check if compiler accepts -pthread
  -- Check if compiler accepts -pthread - yes
  -- Found Threads: TRUE
  -- Could NOT find JsonCpp (missing: JsonCpp_INCLUDE_DIR JsonCpp_LIBRARY)
  -- Enabling OpenGL support in hello_xr, loader_test, and conformance, if configured
  -- Found glslc: C:/Android/ndk/23.2.8568313/shader-tools/windows-x86_64/glslc.exe
  -- Looking for secure_getenv
  -- Looking for secure_getenv - not found
  -- Looking for __secure_getenv
  -- Looking for __secure_getenv - not found
  -- Looking for timespec_get
  -- Looking for timespec_get - not found
  -- OpenXR 1.1.43
  -- Configuring incomplete, errors occurred!
  See also "C:/code/github/openxr/OpenXR-SDK-Source/src/tests/hello_xr/.cxx/Debug/12y1h6y6/arm64-v8a/CMakeFiles/CMakeOutput.log".
  See also "C:/code/github/openxr/OpenXR-SDK-Source/src/tests/hello_xr/.cxx/Debug/12y1h6y6/arm64-v8a/CMakeFiles/CMakeError.log".

  C++ build system [configure] failed while executing:
      @echo off
      "C:\\Android\\cmake\\3.22.1\\bin\\cmake.exe" ^
        "-HC:\\code\\github\\openxr\\OpenXR-SDK-Source" ^
        "-DCMAKE_SYSTEM_NAME=Android" ^
        "-DCMAKE_EXPORT_COMPILE_COMMANDS=ON" ^
        "-DCMAKE_SYSTEM_VERSION=24" ^
        "-DANDROID_PLATFORM=android-24" ^
        "-DANDROID_ABI=arm64-v8a" ^
        "-DCMAKE_ANDROID_ARCH_ABI=arm64-v8a" ^
        "-DANDROID_NDK=C:\\Android\\ndk\\23.2.8568313" ^
        "-DCMAKE_ANDROID_NDK=C:\\Android\\ndk\\23.2.8568313" ^
        "-DCMAKE_TOOLCHAIN_FILE=C:\\Android\\ndk\\23.2.8568313\\build\\cmake\\android.toolchain.cmake" ^
        "-DCMAKE_MAKE_PROGRAM=C:\\Android\\cmake\\3.22.1\\bin\\ninja.exe" ^
        "-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:\\code\\github\\openxr\\OpenXR-SDK-Source\\src\\tests\\hello_xr\\build\\intermediates\\cxx\\Debug\\12y1h6y6\\obj\\arm64-v8a" ^
        "-DCMAKE_RUNTIME_OUTPUT_DIRECTORY=C:\\code\\github\\openxr\\OpenXR-SDK-Source\\src\\tests\\hello_xr\\build\\intermediates\\cxx\\Debug\\12y1h6y6\\obj\\arm64-v8a" ^
        "-DCMAKE_BUILD_TYPE=Debug" ^
        "-BC:\\code\\github\\openxr\\OpenXR-SDK-Source\\src\\tests\\hello_xr\\.cxx\\Debug\\12y1h6y6\\arm64-v8a" ^
        -GNinja ^
        "-DBUILD_API_LAYERS=OFF" ^
        "-DBUILD_TESTS=ON" ^
        "-DBUILD_LOADER=ON" ^
        "-DBUILD_CONFORMANCE_TESTS=OFF" ^
        "-DBUILD_ALL_EXTENSIONS=ON" ^
        "-DHELLOXR_DEFAULT_GRAPHICS_PLUGIN=Vulkan"
    from C:\code\github\openxr\OpenXR-SDK-Source\src\tests\hello_xr
  CMake Error at src/CMakeLists.txt:433 (message):
    Python 3 not found, but pre-generated
    C:/code/github/openxr/OpenXR-SDK-Source/src/xr_generated_dispatch_table.h
    not found
  Call Stack (most recent call first):
    src/CMakeLists.txt:494 (run_xr_xml_generate)

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.

Deprecated Gradle features were used in this build, making it incompatible with Gradle 9.0.

You can use '--warning-mode all' to show the individual deprecation warnings and determine if they come from your own scripts or plugins.

For more on this, please refer to https://docs.gradle.org/8.9/userguide/command_line_interface.html#sec:command_line_warnings in the Gradle documentation.

BUILD FAILED in 7s
21 actionable tasks: 21 executed

C:\code\github\openxr\OpenXR-SDK-Source\src\tests\hello_xr>python --version
Python 3.12.8

That is weird, but it's more like a generic gradle/android gradle plugin issue than something specific to OpenXR. We are not doing anything particularly fancy here, not sure why it's not working for you even though python is in your path.