我不熟悉Yarn，Node或Visual C ++。当我运行yarn install时，它会在yarn-error.log：
Trace:
Error: C:\Users\Chloe\workspace\catalyst_research\node_modules\node-sass: Command failed.
Exit code: 1
Command: C:\windows\system32\cmd.exe
Arguments: /d /s /c node scripts/build.js
Directory: C:\Users\Chloe\workspace\catalyst_research\node_modules\node-sass
Output:
Building: C:\Program Files\nodejs\node.exe C:\Users\Chloe\workspace\catalyst_research\node_modules\node-gyp\bin\node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_library=
gyp info it worked if it ends with ok
gyp verb cli [ 'C:\\Program Files\\nodejs\\node.exe',
gyp verb cli 'C:\\Users\\Chloe\\workspace\\catalyst_research\\node_modules\\node-gyp\\bin\\node-gyp.js',
gyp verb cli 'rebuild',
gyp verb cli '--verbose',
gyp verb cli '--libsass_ext=',
gyp verb cli '--libsass_cflags=',
gyp verb cli '--libsass_ldflags=',
gyp verb cli '--libsass_library=' ]
gyp info using node-gyp@3.6.2
gyp info using node@9.10.1 | win32 | x64
gyp verb command rebuild []
gyp verb command clean []
gyp verb clean removing "build" directory
gyp verb command configure []
gyp verb check python checking for Python executable "python2" in the PATH
gyp verb `which` failed Error: not found: python2
gyp verb `which` failed at getNotFoundError (C:\Users\Chloe\workspace\catalyst_research\node_modules\which\which.js:13:12)
gyp verb `which` failed at F (C:\Users\Chloe\workspace\catalyst_research\node_modules\which\which.js:68:19)
gyp verb `which` failed at E (C:\Users\Chloe\workspace\catalyst_research\node_modules\which\which.js:80:29)
gyp verb `which` failed at C:\Users\Chloe\workspace\catalyst_research\node_modules\which\which.js:89:16
gyp verb `which` failed at C:\Users\Chloe\workspace\catalyst_research\node_modules\isexe\index.js:42:5
gyp verb `which` failed at C:\Users\Chloe\workspace\catalyst_research\node_modules\isexe\windows.js:36:5
gyp verb `which` failed at FSReqWrap.oncomplete (fs.js:170:21)
gyp verb `which` failed python2 { Error: not found: python2
gyp verb `which` failed at getNotFoundError (C:\Users\Chloe\workspace\catalyst_research\node_modules\which\which.js:13:12)
gyp verb `which` failed at F (C:\Users\Chloe\workspace\catalyst_research\node_modules\which\which.js:68:19)
gyp verb `which` failed at E (C:\Users\Chloe\workspace\catalyst_research\node_modules\which\which.js:80:29)
gyp verb `which` failed at C:\Users\Chloe\workspace\catalyst_research\node_modules\which\which.js:89:16
gyp verb `which` failed at C:\Users\Chloe\workspace\catalyst_research\node_modules\isexe\index.js:42:5
gyp verb `which` failed at C:\Users\Chloe\workspace\catalyst_research\node_modules\isexe\windows.js:36:5
gyp verb `which` failed at FSReqWrap.oncomplete (fs.js:170:21)
gyp verb `which` failed stack: 'Error: not found: python2\n at getNotFoundError (C:\\Users\\Chloe\\workspace\\catalyst_research\\node_modules\\which\\which.js:13:12)\n at F (C:\\Users\\Chloe\\workspace\\catalyst_research\\node_modules\\which\\which.js:68:19)\n at E (C:\\Users\\Chloe\\workspace\\catalyst_research\\node_modules\\which\\which.js:80:29)\n at C:\\Users\\Chloe\\workspace\\catalyst_research\\node_modules\\which\\which.js:89:16\n at C:\\Users\\Chloe\\workspace\\catalyst_research\\node_modules\\isexe\\index.js:42:5\n at C:\\Users\\Chloe\\workspace\\catalyst_research\\node_modules\\isexe\\windows.js:36:5\n at FSReqWrap.oncomplete (fs.js:170:21)',
gyp verb `which` failed code: 'ENOENT' }
gyp verb check python checking for Python executable "python" in the PATH
gyp verb `which` succeeded python C:\Python36\python.EXE
gyp verb check python version `C:\Python36\python.EXE -c "import platform; print(platform.python_version());"` returned: "3.6.5\r\n"
gyp verb could not find "C:\Python36\python.EXE". checking python launcher
gyp verb check python launcher python executable found: "C:\\Python27\\python.exe"
gyp verb check python version `C:\Python27\python.exe -c "import platform; print(platform.python_version());"` returned: "2.7.14\r\n"
gyp verb get node dir no --target version specified, falling back to host node version: 9.10.1
gyp verb command install [ '9.10.1' ]
gyp verb install input version string "9.10.1"
gyp verb install installing version: 9.10.1
gyp verb install --ensure was passed, so won't reinstall if already installed
gyp verb install version is already installed, need to check "installVersion"
gyp verb got "installVersion" 9
gyp verb needs "installVersion" 9
gyp verb install version is good
gyp verb get node dir target node version installed: 9.10.1
gyp verb build dir attempting to create "build" dir: C:\Users\Chloe\workspace\catalyst_research\node_modules\node-sass\build
gyp verb build dir "build" dir needed to be created? C:\Users\Chloe\workspace\catalyst_research\node_modules\node-sass\build
gyp verb Not using VS2017: Could not use PowerShell to find VS2017
gyp verb build/config.gypi creating config file
gyp verb build/config.gypi writing out config file: C:\Users\Chloe\workspace\catalyst_research\node_modules\node-sass\build\config.gypi
gyp verb config.gypi checking for gypi file: C:\Users\Chloe\workspace\catalyst_research\node_modules\node-sass\config.gypi
gyp verb common.gypi checking for gypi file: C:\Users\Chloe\workspace\catalyst_research\node_modules\node-sass\common.gypi
gyp verb gyp gyp format was not specified; forcing "msvs"
gyp info spawn C:\Python27\python.exe
gyp info spawn args [ 'C:\\Users\\Chloe\\workspace\\catalyst_research\\node_modules\\node-gyp\\gyp\\gyp_main.py',
gyp info spawn args 'binding.gyp',
gyp info spawn args '-f',
gyp info spawn args 'msvs',
gyp info spawn args '-G',
gyp info spawn args 'msvs_version=auto',
gyp info spawn args '-I',
gyp info spawn args 'C:\\Users\\Chloe\\workspace\\catalyst_research\\node_modules\\node-sass\\build\\config.gypi',
gyp info spawn args '-I',
gyp info spawn args 'C:\\Users\\Chloe\\workspace\\catalyst_research\\node_modules\\node-gyp\\addon.gypi',
gyp info spawn args '-I',
gyp info spawn args 'C:\\Users\\Chloe\\.node-gyp\\9.10.1\\include\\node\\common.gypi',
gyp info spawn args '-Dlibrary=shared_library',
gyp info spawn args '-Dvisibility=default',
gyp info spawn args '-Dnode_root_dir=C:\\Users\\Chloe\\.node-gyp\\9.10.1',
gyp info spawn args '-Dnode_gyp_dir=C:\\Users\\Chloe\\workspace\\catalyst_research\\node_modules\\node-gyp',
gyp info spawn args '-Dnode_lib_file=C:\\Users\\Chloe\\.node-gyp\\9.10.1\\<(target_arch)\\node.lib',
gyp info spawn args '-Dmodule_root_dir=C:\\Users\\Chloe\\workspace\\catalyst_research\\node_modules\\node-sass',
gyp info spawn args '-Dnode_engine=v8',
gyp info spawn args '--depth=.',
gyp info spawn args '--no-parallel',
gyp info spawn args '--generator-output',
gyp info spawn args 'C:\\Users\\Chloe\\workspace\\catalyst_research\\node_modules\\node-sass\\build',
gyp info spawn args '-Goutput_dir=.' ]
gyp verb command build []
gyp verb build type Release
gyp verb architecture x64
gyp verb node dev dir C:\Users\Chloe\.node-gyp\9.10.1
gyp verb found first Solution file build/binding.sln
gyp verb could not find "msbuild.exe" in PATH - finding location in registry
gyp info spawn C:\Program Files (x86)\MSBuild\14.0\bin\msbuild.exe
gyp info spawn args [ 'build/binding.sln',
gyp info spawn args '/nologo',
gyp info spawn args '/p:Configuration=Release;Platform=x64' ]
Building the projects in this solution one at a time. To enable parallel build, please add the "/m" switch.
Build started 4/2/2018 12:04:09 AM.
Project "C:\Users\Chloe\workspace\catalyst_research\node_modules\node-sass\build\binding.sln" on node 1 (default targets).
ValidateSolutionConfiguration:
Building solution configuration "Release|x64".
MSBUILD : error MSB3411: Could not load the Visual C++ component "VCBuild.exe". If the component is not installed, either 1) install the Microsoft Windows SDK for Windows Server 2008 and .NET Framework 3.5, or 2) install Microsoft Visual Studio 2008. [C:\Users\Chloe\workspace\catalyst_research\node_modules\node-sass\build\binding.sln]
Done Building Project "C:\Users\Chloe\workspace\catalyst_research\node_modules\node-sass\build\binding.sln" (default targets) -- FAILED.
Build FAILED.
"C:\Users\Chloe\workspace\catalyst_research\node_modules\node-sass\build\binding.sln" (default target) (1) ->
(libsass target) ->
MSBUILD : error MSB3411: Could not load the Visual C++ component "VCBuild.exe". If the component is not installed, either 1) install the Microsoft Windows SDK for Windows Server 2008 and .NET Framework 3.5, or 2) install Microsoft Visual Studio 2008. [C:\Users\Chloe\workspace\catalyst_research\node_modules\node-sass\build\binding.sln]
0 Warning(s)
1 Error(s)
Time Elapsed 00:00:01.21
gyp ERR! build error
gyp ERR! stack Error: `C:\Program Files (x86)\MSBuild\14.0\bin\msbuild.exe` failed with exit code: 1
gyp ERR! stack at ChildProcess.onExit (C:\Users\Chloe\workspace\catalyst_research\node_modules\node-gyp\lib\build.js:258:23)
gyp ERR! stack at ChildProcess.emit (events.js:180:13)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:209:12)
gyp ERR! System Windows_NT 6.3.9600
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\Chloe\\workspace\\catalyst_research\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd C:\Users\Chloe\workspace\catalyst_research\node_modules\node-sass
gyp ERR! node -v v9.10.1
gyp ERR! node-gyp -v v3.6.2
gyp ERR! not ok
Build failed with error code: 1
at ProcessTermError.MessageError (C:\Program Files (x86)\Yarn\lib\cli.js:186:110)
at new ProcessTermError (C:\Program Files (x86)\Yarn\lib\cli.js:226:113)
at ChildProcess.<anonymous> (C:\Program Files (x86)\Yarn\lib\cli.js:30281:17)
at ChildProcess.emit (events.js:180:13)
at maybeClose (internal/child_process.js:936:16)
at Process.ChildProcess._handle.onexit (internal/child_process.js:220:5)
我安装了chocolatey install vcbuildtools。我改为node_modules\node-sass并运行以下似乎有效（第二次运行）：
C:\Users\Chloe\workspace\catalyst_research\node_modules\node-sass>node scripts/build.js --msvs_version=2015
Binary found at C:\Users\Chloe\workspace\catalyst_research\node_modules\node-sass\vendor\win32-x64-59\binding.node
Testing binary
Binary is fine
但是当我回到项目根目录并运行yarn install时，它会出现同样的错误！
我尝试了npm config --global set msvs_version 2015，但没有帮助。
Windows 8.1，节点9.10.1