Please help me with when "cmake . -B build",OptiX only supports builds configured for 64 bits

[suwcg]

when i run cmake . -B build, i occurred "CMake Error at cmake/FindOptiX.cmake:50 (message):
OptiX only supports builds configured for 64 bits."
All of the logs are as blew:
D:\instant-ngp\instant-ngp>cmake . -B build
-- Selecting Windows SDK version 10.0.17763.0 to target Windows 10.0.22000.
-- Targeting GPU architectures: 75
-- Module support is disabled.
-- Version: 9.0.0
-- Build type:
-- CXX_STANDARD: 14
-- Required features: cxx_variadic_templates
-- Found Vulkan: D:/cuda/vulkan/Lib32/vulkan-1.lib (found version "1.3.231") found components: glslc glslangValidator
-- Using Win32 for window creation
-- !!! Warning OptiX_INSTALL_DIR not set in environment. using default
-- OptiX_INSTALL_DIR value: C:\ProgramData\NVIDIA Corporation\OptiX SDK 7.5.0
CMake Error at cmake/FindOptiX.cmake:48 (message):
Make sure when selecting the generator, you select one with Win64 or x64.
Call Stack (most recent call first):
CMakeLists.txt:184 (find_package)

CMake Error at cmake/FindOptiX.cmake:50 (message):
OptiX only supports builds configured for 64 bits.
Call Stack (most recent call first):
CMakeLists.txt:184 (find_package)

-- Configuring incomplete, errors occurred!
See also "D:/instant-ngp/instant-ngp/build/CMakeFiles/CMakeOutput.log".
See also "D:/instant-ngp/instant-ngp/build/CMakeFiles/CMakeError.log".

[suwcg]

im windows11
the latest CUDA cmake version,just download the latest optix