GameLift-Cpp-ServerSDK build failed for unreal engine

Question

Hello, I follow this explanation 
https://docs.aws.amazon.com/gamelift/latest/developerguide/integration-engines-setup-unreal.html

get an error when
Build the C++ Server SDK libraries for Unreal Engine.|

Error log:

https://gist.github.com/sfak88/e2b5691b9caf5fedd0df3f45de69e124

An example of errors:

```
 -- Looking for dlfcn.h
  -- Looking for dlfcn.h - not found
  -- Looking for errno.h
  -- Looking for errno.h - found
  -- Looking for fcntl.h
  -- Looking for fcntl.h - found
  -- Looking for link.h
  -- Looking for link.h - not found
  -- Looking for malloc/malloc.h
  -- Looking for malloc/malloc.h - not found
  -- Looking for signal.h
  -- Looking for signal.h - found
  -- Looking for sys/ioctl.h
  -- Looking for sys/ioctl.h - not found
  -- Looking for sys/mman.h
  -- Looking for sys/mman.h - not found
  -- Looking for sys/param.h
  -- Looking for sys/param.h - not found
  -- Looking for sys/resource.h
  -- Looking for sys/resource.h - not found
  -- Looking for sys/stat.h
  -- Looking for sys/stat.h - found
  -- Looking for sys/time.h
  -- Looking for sys/time.h - not found
  -- Looking for sys/types.h
  -- Looking for sys/types.h - found
  -- Looking for sysexits.h
  -- Looking for sysexits.h - not found
  -- Looking for termios.h
  -- Looking for termios.h - not found
  -- Looking for unistd.h
  -- Looking for unistd.h - not found
  -- Looking for valgrind/valgrind.h
  -- Looking for valgrind/valgrind.h - not found
  -- Looking for fenv.h
  -- Looking for fenv.h - found
  -- Looking for FE_ALL_EXCEPT
  -- Looking for FE_ALL_EXCEPT - found
  -- Looking for FE_INEXACT
  -- Looking for FE_INEXACT - found
  -- Looking for mach/mach.h
  -- Looking for mach/mach.h - not found
  -- Looking for histedit.h
  -- Looking for histedit.h - not found
  -- Looking for CrashReporterClient.h
  -- Looking for CrashReporterClient.h - not found
  -- Looking for pfm_initialize in pfm
  -- Looking for pfm_initialize in pfm - not found
  -- Could NOT find LibXml2 (missing: LIBXML2_LIBRARY LIBXML2_INCLUDE_DIR)
  -- Looking for xar_open in xar
  -- Looking for xar_open in xar - not found
  -- Looking for arc4random
  -- Looking for arc4random - not found
  -- Looking for backtrace
  -- Looking for backtrace - not found
  -- Could NOT find Backtrace (missing: Backtrace_LIBRARY Backtrace_INCLUDE_DIR)
  -- Performing Test C_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW
  -- Performing Test C_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW - Failed
  -- Looking for __register_frame
  -- Looking for __register_frame - not found
  -- Looking for __deregister_frame
  -- Looking for __deregister_frame - not found
  -- Looking for _Unwind_Backtrace
  -- Looking for _Unwind_Backtrace - not found
  -- Looking for getpagesize
  -- Looking for getpagesize - not found
  -- Looking for sysconf
  -- Looking for sysconf - not found
  -- Looking for getrusage
  -- Looking for getrusage - not found
  -- Looking for setrlimit
  -- Looking for setrlimit - not found
  -- Looking for isatty
  -- Looking for isatty - not found
  -- Looking for futimens
  -- Looking for futimens - not found
  -- Looking for futimes
  -- Looking for futimes - not found
  -- Looking for posix_fallocate
  -- Looking for posix_fallocate - not found
  -- Looking for sigaltstack
  -- Looking for sigaltstack - not found
  -- Looking for lseek64
  -- Looking for lseek64 - not found
  -- Looking for mallctl
  -- Looking for mallctl - not found
  -- Looking for mallinfo
  -- Looking for mallinfo - not found
  -- Looking for mallinfo2
  -- Looking for mallinfo2 - not found
  -- Looking for malloc_zone_statistics
  -- Looking for malloc_zone_statistics - not found
  -- Looking for getrlimit
  -- Looking for getrlimit - not found
  -- Looking for posix_spawn
  -- Looking for posix_spawn - not found
  -- Looking for pread
  -- Looking for pread - not found
  -- Looking for sbrk
  -- Looking for sbrk - not found
  -- Looking for strerror
  -- Looking for strerror - found
  -- Looking for strerror_r
  -- Looking for strerror_r - not found
  -- Looking for strerror_s
  -- Looking for strerror_s - found
  -- Looking for setenv
  -- Looking for setenv - not found
  -- Looking for _chsize_s
  -- Looking for _chsize_s - found
  -- Looking for _alloca
  -- Looking for _alloca - not found
  -- Looking for __alloca
  -- Looking for __alloca - not found
  -- Looking for __chkstk
  -- Looking for __chkstk - found
  -- Looking for __chkstk_ms
  -- Looking for __chkstk_ms - not found
  -- Looking for ___chkstk
  -- Looking for ___chkstk - not found
  -- Looking for ___chkstk_ms
  -- Looking for ___chkstk_ms - not found
  -- Looking for __ashldi3
  -- Looking for __ashldi3 - not found
  -- Looking for __ashrdi3
  -- Looking for __ashrdi3 - not found
  -- Looking for __divdi3
  -- Looking for __divdi3 - not found
  -- Looking for __fixdfdi
  -- Looking for __fixdfdi - not found
  -- Looking for __fixsfdi
  -- Looking for __fixsfdi - not found
  -- Looking for __floatdidf
  -- Looking for __floatdidf - not found
  -- Looking for __lshrdi3
  -- Looking for __lshrdi3 - not found
  -- Looking for __moddi3
  -- Looking for __moddi3 - not found
  -- Looking for __udivdi3
  -- Looking for __udivdi3 - not found
  -- Looking for __umoddi3
  -- Looking for __umoddi3 - not found
  -- Looking for __main
  -- Looking for __main - not found
  -- Looking for __cmpdi2
  -- Looking for __cmpdi2 - not found
  -- Performing Test HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC
  -- Performing Test HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC - Failed
  -- Performing Test HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
  -- Performing Test HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC - Failed
  -- Looking for __GLIBC__
  -- Looking for __GLIBC__ - not found
  -- Looking for proc_pid_rusage
  -- Looking for proc_pid_rusage - not found
  -- Performing Test HAVE_STD_IS_TRIVIALLY_COPYABLE
  -- Performing Test HAVE_STD_IS_TRIVIALLY_COPYABLE - Success
  -- Performing Test LLVM_HAS_ATOMICS
  -- Performing Test LLVM_HAS_ATOMICS - Success
  -- Performing Test SUPPORTS_VARIADIC_MACROS_FLAG
  -- Performing Test SUPPORTS_VARIADIC_MACROS_FLAG - Failed
  -- Performing Test SUPPORTS_GNU_ZERO_VARIADIC_MACRO_ARGUMENTS_FLAG
  -- Performing Test SUPPORTS_GNU_ZERO_VARIADIC_MACRO_ARGUMENTS_FLAG - Failed
  -- Native target architecture is X86
  -- Threads enabled.
  -- Doxygen disabled.
  -- Go bindings disabled.
  -- Could NOT find OCaml (missing: OCAMLFIND OCAML_VERSION OCAML_STDLIB_PATH)
  -- OCaml bindings disabled.
  -- Could NOT find Python module pygments
  -- Could NOT find Python module pygments.lexers.c_cpp
  -- Could NOT find Python module yaml
  -- LLVM host triple: x86_64-pc-windows-msvc
  -- LLVM default target triple: x86_64-pc-windows-msvc
  -- Using Debug VC++ CRT: MDd
  -- Using Release VC++ CRT: MD
  -- Using MinSizeRel VC++ CRT: MD
  -- Using RelWithDebInfo VC++ CRT: MD
  -- Using Release VC++ CRT: MD
  -- Looking for os_signpost_interval_begin
  -- Looking for os_signpost_interval_begin - not found
  CMake Error at C:/Program Files/CMake/share/cmake-3.27/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
    Could NOT find Python3 (missing: Python3_EXECUTABLE Interpreter) (Required
    is at least version "3.6")
  Call Stack (most recent call first):
    C:/Program Files/CMake/share/cmake-3.27/Modules/FindPackageHandleStandardArgs.cmake:600 (_FPHSA_FAILURE_MESSAGE)
    C:/Program Files/CMake/share/cmake-3.27/Modules/FindPython/Support.cmake:3824 (find_package_handle_standard_args)
    C:/Program Files/CMake/share/cmake-3.27/Modules/FindPython3.cmake:545 (include)
    CMakeLists.txt:715 (find_package)

-- Configuring incomplete, errors occurred!
C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(241
,5): error MSB8066: Custom build for 'C:\GameLift-Cpp-ServerSDK-5.0.4\out\CMakeFiles\647b40c7d09f19ed2b56da862b27faab\c
lang-format-mkdir.rule;C:\GameLift-Cpp-ServerSDK-5.0.4\out\CMakeFiles\647b40c7d09f19ed2b56da862b27faab\clang-format-dow
nload.rule;C:\GameLift-Cpp-ServerSDK-5.0.4\out\CMakeFiles\647b40c7d09f19ed2b56da862b27faab\clang-format-update.rule;C:\
GameLift-Cpp-ServerSDK-5.0.4\out\CMakeFiles\647b40c7d09f19ed2b56da862b27faab\clang-format-patch.rule;C:\GameLift-Cpp-Se
rverSDK-5.0.4\out\CMakeFiles\647b40c7d09f19ed2b56da862b27faab\clang-format-configure.rule;C:\GameLift-Cpp-ServerSDK-5.0
.4\out\CMakeFiles\647b40c7d09f19ed2b56da862b27faab\clang-format-build.rule;C:\GameLift-Cpp-ServerSDK-5.0.4\out\CMakeFil
es\647b40c7d09f19ed2b56da862b27faab\clang-format-install.rule;C:\GameLift-Cpp-ServerSDK-5.0.4\out\CMakeFiles\622c631ac9
9b4119af534885e5fbb659\clang-format-complete.rule;C:\GameLift-Cpp-ServerSDK-5.0.4\out\CMakeFiles\f01cc9fdc62450e61ce68b
7fff2eb459\clang-format.rule;C:\GameLift-Cpp-ServerSDK-5.0.4	hirdparty\CMakeLists.txt' exited with code 1. [C:\GameLif
t-Cpp-ServerSDK-5.0.4\out	hirdparty\clang-format.vcxproj]
Done Building Project "C:\GameLift-Cpp-ServerSDK-5.0.4\out	hirdparty\clang-format.vcxproj" (default targets) -- FAILED
.
```

If any information is needed please let me know, Thank you

Shaun_AWS · Answer

Hi ufhs,

Your error message includes the following output:

>  Could NOT find Python3 (missing: Python3_EXECUTABLE Interpreter) (Required
    is at least version "3.6")

Please try installing Python version 3.6 or later and then try building again. Let us know if you have further errors.

fzehao · Answer

Hi, from the error message I've seen   
```
CMake Error at C:/Program Files/CMake/share/cmake-3.27/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
    Could NOT find Python3 (missing: Python3_EXECUTABLE Interpreter) (Required
    is at least version "3.6")
```
Did you have your python environment configured correctly? Python 3.6+ is required to build the SDK, which you can follow the README to install.

GameLift-Cpp-ServerSDK build failed for unreal engine

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