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我想用npm安裝「松露」，但我不熟悉NodeJS，不能弄清楚爲什麼npm不會安裝它。我嘗試npm install -g truffle在PowerShell中具有管理員權限後輸出的幾行，我得到錯誤信息塊：NPM不能在Windows上安裝「松露」
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 (F:\nodeJS\node_modules\npm\node_modules\node-gyp\lib\build.js:276:23)
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_process.js:200:12)
gyp ERR! System Windows_NT 10.0.14393
gyp ERR! command "F:\\nodeJS\\node.exe" "F:\\nodeJS\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild"
gyp ERR! cwd C:\Users\Max\AppData\Roaming\npm\node_modules\truffle\node_modules\ether-pudding\node_modules\ethereumjs-testrpc\node_modules\ethereumjs-wallet\node_modules\scrypt.js\node_modules\scrypt
gyp ERR! node -v v4.5.0
gyp ERR! node-gyp -v v3.4.0
gyp ERR! not ok\
再經過很多很多的黃線，我終於得到這個：
npm ERR! Windows_NT 10.0.14393
npm ERR! argv "F:\\nodeJS\\node.exe" "F:\\nodeJS\\node_modules\\npm\\bin\\npm-cli.js" "install" "-g" "truffle"
npm ERR! node v4.5.0
npm ERR! npm v2.15.9
npm ERR! code ELIFECYCLE
npm ERR! [email protected] install: `node-gyp rebuild`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] install script 'node-gyp rebuild'.
npm ERR! This is most likely a problem with the scrypt 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 information on how to open an issue for this project with:
npm ERR! npm bugs scrypt
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!
npm ERR! npm owner ls scrypt
npm ERR! There is likely additional logging output above.
npm ERR! Please include the following file with any support request:
npm ERR! F:\eth_truffle\npm-debug.log
後沒有其他事情發生，過了一段時間它就結束了。在我目前所在的目錄中沒有文件（除單個日誌文件外），cmd/powershell也找不到關鍵字「松露」。
正如我所說我以前從未與NodeJS合作過，也不知道這一切意味着什麼。我能做些什麼來讓松露運行？