Node JS安装包，MSB003 – SDKdirvariables缺失

亲爱的Stackoverflowers，

我试图用我的Windows 8.1 x64计算机安装几个与节点JS的包。 这些软件包是“Karma”，“generator-angular”，“generator-meanjs”。 为此我总是这样做：

npm install -g karma 

或者其他的一样。 不幸的是，我收到这个错误：

  Your environment has been set up for using Node.js 4.1.1 (x64) and npm. C:\Windows\System32>npm install -g karma npm WARN install Couldn't install optional dependency: Unsupported C:\Program Files\nodejs\karma -> C:\Program Files\nodejs\node_modules\karma\bin\ karma > bufferutil@1.2.1 install C:\Program Files\nodejs\node_modules\karma\node_modul es\bufferutil > node-gyp rebuild C:\Program Files\nodejs\node_modules\karma\node_modules\bufferutil>if not define d npm_config_node_gyp (node "C:\Users\Piguet\AppData\Roaming\npm\node_modules\np m\bin\node-gyp-bin\\..\..\node_modules\node-gyp\bin\node-gyp.js" rebuild ) else (node rebuild ) Génération des projets individuellement dans cette solution. Pour activer la gén ération en parallèle, ajoutez le commutateur "/m". C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V140\Microsoft.CppBuild.targe ts(366,5): warning MSB8003: Could not find WindowsSDKDir variable from the regi stry. TargetFrameworkVersion or PlatformToolset may be set to an invalid versi on number. [C:\Program Files\nodejs\node_modules\karma\node_modules\bufferutil\ build\bufferutil.vcxproj] TRACKER : error TRK0005: échec de localisation de : "CL.exe". Le fichier spécif ié est introuvable. [C:\Program Files\nodejs\node_modules\karma\node_modules\bu fferutil\build\bufferutil.vcxproj] gyp ERR! build error gyp ERR! stack Error: `C:\Program Files (x86)\MSBuild\14.0\bin\msbuild.exe` fail ed with exit code: 1 gyp ERR! stack at ChildProcess.onExit (C:\Users\Piguet\AppData\Roaming\npm\n ode_modules\npm\node_modules\node-gyp\lib\build.js:270:23) gyp ERR! stack at emitTwo (events.js:87:13) gyp ERR! stack at ChildProcess.emit (events.js:172:7) gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_proces s.js:200:12) gyp ERR! System Windows_NT 6.3.9600 gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\Piguet\\AppDa ta\\Roaming\\npm\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" " rebuild" gyp ERR! cwd C:\Program Files\nodejs\node_modules\karma\node_modules\bufferutil gyp ERR! node -v v4.1.1 gyp ERR! node-gyp -v v3.0.3 gyp ERR! not ok C:\Program Files\nodejs └── (empty) npm ERR! Windows_NT 6.3.9600 npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\Piguet\\AppData\ \Roaming\\npm\\node_modules\\npm\\bin\\npm-cli.js" "install" "-g" "karma" npm ERR! node v4.1.1 npm ERR! npm v3.3.4 npm ERR! code ELIFECYCLE npm ERR! bufferutil@1.2.1 install: `node-gyp rebuild` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the bufferutil@1.2.1 install script 'node-gyp rebuild'. npm ERR! This is most likely a problem with the bufferutil package, npm ERR! not with npm itself. npm ERR! Tell the author that this fails on your system: npm ERR! node-gyp rebuild npm ERR! You can get their info via: npm ERR! npm owner ls bufferutil npm ERR! There is likely additional logging output above. npm ERR! Please include the following file with any support request: npm ERR! C:\Windows\System32\npm-debug.log npm ERR! code 1 C:\Windows\System32> 

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我无法发布图片，因为这是我第一次发布，抱歉。 我已经重新安装了Microsoft Visual Studio 2015.我在Google上search，他们build议使用这个命令：

 call C:\Program Files\Microsoft SDKs\Windows\v7.1\bin\Setenv.cmd /Release /x86 

但是我没有v7.1。

任何想法如何解决这个问题？