问题
机器学习需要安装dlib库，网上搜索
解决方案在最底部
网上搜索的解决方案
pip install cmake
pip install boost
pip install dlib然而，在安装dlib的时候，错误原因不仅限于没有安装cmake。
报错如下
Collecting dlib
Using cached dlib-19.24.0.tar.gz (3.2 MB)
Preparing metadata (setup.py) ... done
Building wheels for collected packages: dlib
Building wheel for dlib (setup.py) ... error
error: subprocess-exited-with-error
× python setup.py bdist_wheel did not run successfully.
│ exit code: 1
╰─> [320 lines of output]
running bdist_wheel
running build
running build_py
package init file 'tools\python\dlib\__init__.py' not found (or not a regular file)
running build_ext
Building extension for Python 3.8.8 (default, Apr 13 2021, 15:08:03) [MSC v.1916 64 bit (AMD64)]
Invoking CMake setup: 'cmake C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\lib.win-amd64-3.8 -DPYTHON_EXECUTABLE=C:\ProgramData\Anaconda3\python.exe -DCMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE=C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\lib.win-amd64-3.8 -A x64'
-- Building for: Visual Studio 17 2022
-- Selecting Windows SDK version 10.0.19041.0 to target Windows 10.0.19044.
-- The C compiler identification is MSVC 19.32.31329.0
-- The CXX compiler identification is MSVC 19.32.31329.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.32.31326/bin/Hostx64/x64/cl.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:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.32.31326/bin/Hostx64/x64/cl.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found PythonInterp: C:/ProgramData/Anaconda3/python.exe (found version "3.8.8")
-- Found PythonLibs: C:/ProgramData/Anaconda3/libs/Python38.lib
-- pybind11 v2.2.4
-- Using CMake version: 3.22.5
-- Compiling dlib version: 19.24.0
-- Looking for sys/types.h
-- Looking for sys/types.h - found
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Looking for stddef.h
-- Looking for stddef.h - found
-- Check size of void*
-- Check size of void* - done
-- Enabling SSE2 instructions
-- Searching for BLAS and LAPACK
-- Searching for BLAS and LAPACK
-- Looking for pthread.h
-- Looking for pthread.h - not found
-- Found Threads: TRUE
-- Found CUDA: C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v11.2 (found suitable version "11.2", minimum required is "7.5")
-- Looking for cuDNN install...
-- Found cuDNN: C:/tools/cudnn-11.2-windows-x64-v8.1.1.33/cuda/lib/x64/cudnn.lib
-- Building a CUDA test project to see if your compiler is compatible with CUDA...
-- *****************************************************************************************************************
-- *** CUDA was found but your compiler failed to compile a simple CUDA program so dlib isn't going to use CUDA.
-- *** The output of the failed CUDA test compile is shown below:
-- ***
-- *** Change Dir: C:/Users/shyan/AppData/Local/Temp/pip-install-g2xfkj5d/dlib_6582d86d1c13456bb92e2e45ecaaae84/build/temp.win-amd64-3.8/Release/dlib_build/cuda_test_build
***
*** Run Build Command(s):C:/Program Files/Microsoft Visual Studio/2022/Community/MSBuild/Current/Bin/amd64/MSBuild.exe ALL_BUILD.vcxproj /p:Configuration=Debug /p:Platform=x64 /p:VisualStudioVersion=17.0 /v:m && Microsoft (R) Build Engine version 17.2.1+52cd2da31 for .NET Framework
*** Copyright (C) Microsoft Corporation. All rights reserved.
***
*** C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(524,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\cuda_test_build\ZERO_CHECK.vcxproj]
*** Checking Build System
*** C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(524,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\cuda_test_build\cuda_test.vcxproj]
*** Building NVCC (Device) object CMakeFiles/cuda_test.dir/Debug/cuda_test_generated_cuda_test.cu.obj
*** cuda_test.cu
*** C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.2\include\crt/host_config.h(160): fatal error C1189: #error: -- unsupported Microsoft Visual Studio version! Only the versions between 2017 and 2019 (inclusive) are supported! The nvcc flag '-allow-unsupported-compiler' can be used to override this version check; however, using an unsupported host compiler may cause compilation failure or incorrect run time execution. Use at your own risk. [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\cuda_test_build\cuda_test.vcxproj]
*** CUSTOMBUILD : nvcc warning : The 'compute_35', 'compute_37', 'compute_50', 'sm_35', 'sm_37' and 'sm_50' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning). [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\cuda_test_build\cuda_test.vcxproj]
*** CUSTOMBUILD : nvcc warning : The -std=c++11 flag is not supported with the configured host compiler. Flag will be ignored. [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\cuda_test_build\cuda_test.vcxproj]
*** CMake Error at cuda_test_generated_cuda_test.cu.obj.Debug.cmake:216 (message):
*** Error generating
*** C:/Users/shyan/AppData/Local/Temp/pip-install-g2xfkj5d/dlib_6582d86d1c13456bb92e2e45ecaaae84/build/temp.win-amd64-3.8/Release/dlib_build/cuda_test_build/CMakeFiles/cuda_test.dir//Debug/cuda_test_generated_cuda_test.cu.obj
***
***
*** C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(245,5): error MSB8066: Custom build for 'C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\cmake_utils\test_for_cuda\cuda_test.cu;C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\cmake_utils\test_for_cuda\CMakeLists.txt' exited with code 1. [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\cuda_test_build\cuda_test.vcxproj]
***
***
-- *****************************************************************************************************************
-- Disabling CUDA support for dlib. DLIB WILL NOT USE CUDA
-- C++11 activated.
-- Configuring done
-- Generating done
-- Build files have been written to: C:/Users/shyan/AppData/Local/Temp/pip-install-g2xfkj5d/dlib_6582d86d1c13456bb92e2e45ecaaae84/build/temp.win-amd64-3.8/Release
Invoking CMake build: 'cmake --build . --config Release -- /m'
Microsoft (R) Build Engine version 17.2.1+52cd2da31 for .NET Framework
Copyright (C) Microsoft Corporation. All rights reserved.
C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(524,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\ZERO_CHECK.vcxproj]
Checking Build System
C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(524,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\dlib.vcxproj]
Building Custom Rule C:/Users/shyan/AppData/Local/Temp/pip-install-g2xfkj5d/dlib_6582d86d1c13456bb92e2e45ecaaae84/dlib/CMakeLists.txt
base64_kernel_1.cpp
bigint_kernel_1.cpp
bigint_kernel_2.cpp
bit_stream_kernel_1.cpp
entropy_decoder_kernel_1.cpp
entropy_decoder_kernel_2.cpp
entropy_encoder_kernel_1.cpp
entropy_encoder_kernel_2.cpp
md5_kernel_1.cpp
tokenizer_kernel_1.cpp
unicode.cpp
test_for_odr_violations.cpp
sockets_kernel_1.cpp
bsp.cpp
dir_nav_kernel_1.cpp
dir_nav_kernel_2.cpp
dir_nav_extensions.cpp
fonts.cpp
linker_kernel_1.cpp
extra_logger_headers.cpp
logger_kernel_1.cpp
logger_config_file.cpp
misc_api_kernel_1.cpp
misc_api_kernel_2.cpp
sockets_extensions.cpp
sockets_kernel_2.cpp
sockstreambuf.cpp
sockstreambuf_unbuffered.cpp
server_kernel.cpp
server_iostream.cpp
server_http.cpp
multithreaded_object_extension.cpp
threaded_object_extension.cpp
threads_kernel_1.cpp
threads_kernel_2.cpp
threads_kernel_shared.cpp
thread_pool_extension.cpp
async.cpp
timer.cpp
stack_trace.cpp
cpu_dlib.cpp
tensor_tools.cpp
image_dataset_metadata.cpp
mnist.cpp
cifar.cpp
global_function_search.cpp
kalman_filter.cpp
auto.cpp
widgets.cpp
drawable.cpp
canvas_drawing.cpp
style.cpp
base_widgets.cpp
gui_core_kernel_1.cpp
gui_core_kernel_2.cpp
png_loader.cpp
save_png.cpp
jpeg_loader.cpp
save_jpeg.cpp
arm_init.c
filter_neon_intrinsics.c
png.c
pngerror.c
pngget.c
pngmem.c
pngpread.c
pngread.c
pngrio.c
pngrtran.c
pngrutil.c
pngset.c
pngtrans.c
pngwio.c
pngwrite.c
pngwtran.c
pngwutil.c
adler32.c
compress.c
crc32.c
deflate.c
gzclose.c
gzlib.c
gzread.c
gzwrite.c
infback.c
C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\external\zlib\gzread.c(319,17): warning C4267: “=”: 从“size_t”转换到“unsigned int”，可能丢失数据 [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\dlib.vcxproj]
inffast.c
inflate.c
inftrees.c
trees.c
uncompr.c
C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\external\zlib\gzread.c(400,11): warning C4267: “=”: 从“size_t”转换到“unsigned int”，可能丢失数据 [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\dlib.vcxproj]
C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\external\zlib\gzwrite.c(212,24): warning C4267: “=”: 从“size_t”转换到“unsigned int”，可能丢失数据 [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\dlib.vcxproj]
zutil.c
jaricom.c
C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\external\zlib\gzread.c(472,11): warning C4267: “=”: 从“size_t”转换到“int”，可能丢失数据 [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\dlib.vcxproj]
C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\external\zlib\gzwrite.c(232,21): warning C4267: “=”: 从“size_t”转换到“unsigned int”，可能丢失数据 [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\dlib.vcxproj]
C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\external\zlib\gzwrite.c(371,11): warning C4267: “=”: 从“size_t”转换到“int”，可能丢失数据 [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\dlib.vcxproj]
jcapimin.c
jcapistd.c
jcarith.c
jccoefct.c
jccolor.c
jcdctmgr.c
jchuff.c
jcinit.c
jcmainct.c
jcmarker.c
jcmaster.c
jcomapi.c
jcparam.c
jcprepct.c
jcsample.c
jdapimin.c
jdapistd.c
jdarith.c
jdatadst.c
jdatasrc.c
jdcoefct.c
C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\external\libjpeg\jdatadst.c(185,34): warning C4267: “=”: 从“size_t”转换到“unsigned long”，可能丢失数据 [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\dlib.vcxproj]
jdcolor.c
jddctmgr.c
jdhuff.c
jdinput.c
jdmainct.c
jdmarker.c
jdmaster.c
jdmerge.c
jdpostct.c
jdsample.c
jerror.c
jfdctflt.c
jfdctfst.c
jfdctint.c
jidctflt.c
jidctfst.c
jidctint.c
jmemmgr.c
jmemnobs.c
jquant1.c
jquant2.c
jutils.c
C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\external\libjpeg\jmemmgr.c(307,47): warning C4267: “+=”: 从“size_t”转换到“long”，可能丢失数据 [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\dlib.vcxproj]
C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\external\libjpeg\jerror.c(193,5): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\dlib.vcxproj]
C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\external\libjpeg\jmemmgr.c(367,46): warning C4267: “+=”: 从“size_t”转换到“long”，可能丢失数据 [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\dlib.vcxproj]
C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\external\libjpeg\jerror.c(195,5): warning C4996: 'sprintf': This function or variable may be unsafe. Consider using sprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\dlib.vcxproj]
C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\external\libjpeg\jmemmgr.c(977,35): warning C4267: “-=”: 从“size_t”转换到“long”，可能丢失数据 [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\dlib.vcxproj]
C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\external\libjpeg\jmemmgr.c(991,35): warning C4267: “-=”: 从“size_t”转换到“long”，可能丢失数据 [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\dlib.vcxproj]
C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\external\libjpeg\jmemmgr.c(1107,19): warning C4996: 'getenv': This function or variable may be unsafe. Consider using _dupenv_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\dlib.vcxproj]
C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\dlib\external\libjpeg\jmemmgr.c(1110,11): warning C4996: 'sscanf': This function or variable may be unsafe. Consider using sscanf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\dlib.vcxproj]
dlib.vcxproj -> C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\dlib_build\Release\dlib19.24.0_release_64bit_msvc1932.lib
C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(524,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
Building Custom Rule C:/Users/shyan/AppData/Local/Temp/pip-install-g2xfkj5d/dlib_6582d86d1c13456bb92e2e45ecaaae84/tools/python/CMakeLists.txt
dlib.cpp
matrix.cpp
vector.cpp
svm_c_trainer.cpp
svm_rank_trainer.cpp
decision_functions.cpp
other.cpp
basic.cpp
cca.cpp
sequence_segmenter.cpp
svm_struct.cpp
image.cpp
image2.cpp
image3.cpp
image4.cpp
rectangles.cpp
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\dlib.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\matrix.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\cca.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\decision_functions.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\other.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\svm_rank_trainer.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\vector.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\image2.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
object_detection.cpp
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\image.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\basic.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
shape_predictor.cpp
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\rectangles.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\image4.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
correlation_tracker.cpp
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\svm_c_trainer.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\sequence_segmenter.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\image3.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\svm_struct.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
face_recognition.cpp
cnn_face_detector.cpp
global_optimization.cpp
image_dataset_metadata.cpp
numpy_returns.cpp
line.cpp
gui.cpp
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\object_detection.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\shape_predictor.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\correlation_tracker.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\face_recognition.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\global_optimization.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\cnn_face_detector.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\image_dataset_metadata.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\numpy_returns.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\line.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
C:\ProgramData\Anaconda3\Library\include\gif_lib.h(286,61): error C2734: “GifAsciiTable8x8”: 如果不是外部的，则 必须初始化常量对象 (编译源文件 C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\tools\python\src\gui.cpp) [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-3.8\Release\_dlib_pybind11.vcxproj]
Traceback (most recent call last):
File "<string>", line 2, in <module>
File "<pip-setuptools-caller>", line 34, in <module>
File "C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\setup.py", line 222, in <module>
setup(
File "C:\ProgramData\Anaconda3\lib\site-packages\setuptools\__init__.py", line 165, in setup
return distutils.core.setup(**attrs)
File "C:\ProgramData\Anaconda3\lib\distutils\core.py", line 148, in setup
dist.run_commands()
File "C:\ProgramData\Anaconda3\lib\distutils\dist.py", line 966, in run_commands
self.run_command(cmd)
File "C:\ProgramData\Anaconda3\lib\distutils\dist.py", line 985, in run_command
cmd_obj.run()
File "C:\ProgramData\Anaconda3\lib\site-packages\wheel\bdist_wheel.py", line 299, in run
self.run_command('build')
File "C:\ProgramData\Anaconda3\lib\distutils\cmd.py", line 313, in run_command
self.distribution.run_command(command)
File "C:\ProgramData\Anaconda3\lib\distutils\dist.py", line 985, in run_command
cmd_obj.run()
File "C:\ProgramData\Anaconda3\lib\distutils\command\build.py", line 135, in run
self.run_command(cmd_name)
File "C:\ProgramData\Anaconda3\lib\distutils\cmd.py", line 313, in run_command
self.distribution.run_command(command)
File "C:\ProgramData\Anaconda3\lib\distutils\dist.py", line 985, in run_command
cmd_obj.run()
File "C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\setup.py", line 134, in run
self.build_extension(ext)
File "C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\setup.py", line 174, in build_extension
subprocess.check_call(cmake_build, cwd=build_folder)
File "C:\ProgramData\Anaconda3\lib\subprocess.py", line 364, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['cmake', '--build', '.', '--config', 'Release', '--', '/m']' returned non-zero exit status 1.
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for dlib
Running setup.py clean for dlib
Failed to build dlib
Installing collected packages: dlib
Running setup.py install for dlib ... /关键错误
#error: -- unsupported Microsoft Visual Studio version! Only the versions between 2017 and 2019 (inclusive) are supported! The nvcc flag '-allow-unsupported-compiler' can be used to override this version check; however, using an unsupported host compiler may cause compilation failure or incorrect run time execution. Use at your own risk. [C:\Users\shyan\AppData\Local\Temp\pip-install-g2xfkj5d\dlib_6582d86d1c13456bb92e2e45ecaaae84\build\temp.win-amd64-我推测关键错误原因还是visual studio版本的问题。我本机有vs2019和vs2022，python应该是使用了vs2022。然而这个版本不被支持
解决方法
下载dlib包，手动执行setup.py,加上参数
下载地址： https://github.com/davisking/dlib/tags
解压缩执行命令,cmd打开目录
C:\Users\machineA\Desktop\dlib-19.24>> python setup.py install --no DLIB_GIF_SUPPORT
。。。。。
creating dist
creating 'dist\dlib-19.24.0-py3.8-win-amd64.egg' and adding 'build\bdist.win-amd64\egg' to it
removing 'build\bdist.win-amd64\egg' (and everything under it)
Processing dlib-19.24.0-py3.8-win-amd64.egg
creating c:\programdata\anaconda3\lib\site-packages\dlib-19.24.0-py3.8-win-amd64.egg
Extracting dlib-19.24.0-py3.8-win-amd64.egg to c:\programdata\anaconda3\lib\site-packages
Adding dlib 19.24.0 to easy-install.pth file
Installed c:\programdata\anaconda3\lib\site-packages\dlib-19.24.0-py3.8-win-amd64.egg
Processing dependencies for dlib==19.24.0
Finished processing dependencies for dlib==19.24.0