title: Error compiling bcrypt - node.js
body: <p>I'm trying to install bycrpt via <code>npm install</code> using Windows 7 Ultimate x64.
  This is my install log:</p>
  
  <pre><code>D:\Dropbox\Projekte\RZ\Finance-Man-GUI\node_modules\bcrypt&gt;node "C:\Program File
  s\nodejs\node_modules\npm\bin\node-gyp-bin\\..\..\node_modules\node-gyp\bin\node
  -gyp.js" rebuild
  npm http GET https://registry.npmjs.org/mime/1.2.6
  npm http 304 https://registry.npmjs.org/coffee-script
  npm http 304 https://registry.npmjs.org/mkdirp
  npm http 304 https://registry.npmjs.org/cssom
  npm http 304 https://registry.npmjs.org/hooks/0.2.1
  npm http 304 https://registry.npmjs.org/mongodb/1.2.8
  npm http 304 https://registry.npmjs.org/ms/0.1.0
  npm http 304 https://registry.npmjs.org/sliced/0.0.3
  npm http 304 https://registry.npmjs.org/muri/0.1.0
  npm http 304 https://registry.npmjs.org/mime/1.2.6
  npm http GET https://registry.npmjs.org/crc/0.2.0
  npm http GET https://registry.npmjs.org/pause/0.0.1
  npm http GET https://registry.npmjs.org/bytes/0.1.0
  npm http GET https://registry.npmjs.org/formidable/1.0.11
  npm http GET https://registry.npmjs.org/qs/0.5.1
  npm http GET https://registry.npmjs.org/bson/0.1.5
  C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\Microsoft.CppBuild.targets(29
  7,5): warning MSB8003: Could not find WindowsSDKDir variable from the registry.
    TargetFrameworkVersion or PlatformToolset may be set to an invalid version nu
  mber. [D:\Dropbox\Projekte\RZ\Finance-Man-GUI\node_modules\bcrypt\build\bcrypt_
  lib.vcxproj]
    blowfish.cc
    bcrypt.cc
    bcrypt_node.cc
  ..\src\bcrypt.cc(232): warning C4267: '=' : conversion from 'size_t' to 'unsign
  ed char', possible loss of data [D:\Dropbox\Projekte\RZ\Finance-Man-GUI\node_mo
  dules\bcrypt\build\bcrypt_lib.vcxproj]
  c:\users\timd\.node-gyp\0.8.18\deps\uv\include\ares.h(49): fatal error C1083: C
  annot open include file: 'winsock2.h': No such file or directory [D:\Dropbox\Pr
  ojekte\RZ\Finance-Man-GUI\node_modules\bcrypt\build\bcrypt_lib.vcxproj]
  gyp ERR! build error
  gyp ERR! stack Error: `C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.e
  xe` failed with exit code: 1
  gyp ERR! stack     at ChildProcess.onExit (C:\Program Files\nodejs\node_modules\
  npm\node_modules\node-gyp\lib\build.js:255:23)
  gyp ERR! stack     at ChildProcess.EventEmitter.emit (events.js:99:17)
  gyp ERR! stack     at Process._handle.onexit (child_process.js:678:10)
  gyp ERR! System Windows_NT 6.1.7600
  gyp ERR! command "node" "C:\\Program Files\\nodejs\\node_modules\\npm\\node_modu
  les\\node-gyp\\bin\\node-gyp.js" "rebuild"
  gyp ERR! cwd D:\Dropbox\Projekte\RZ\Finance-Man-GUI\node_modules\bcrypt
  gyp ERR! node -v v0.8.18
  gyp ERR! node-gyp -v v0.8.2
  gyp ERR! not ok
  npm ERR! bcrypt@0.7.3 install: `node-gyp rebuild`
  npm ERR! `cmd "/c" "node-gyp rebuild"` failed with 1
  npm ERR!
  npm ERR! Failed at the bcrypt@0.7.3 install script.
  npm ERR! This is most likely a problem with the bcrypt 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 bcrypt
  npm ERR! There is likely additional logging output above.
  
  npm ERR! System Windows_NT 6.1.7600
  npm ERR! command "C:\\Program Files\\nodejs\\\\node.exe" "C:\\Program Files\\nod
  ejs\\node_modules\\npm\\bin\\npm-cli.js" "install"
  npm ERR! cwd D:\Dropbox\Projekte\RZ\Finance-Man-GUI
  npm ERR! node -v v0.8.18
  npm ERR! npm -v 1.2.2
  npm ERR! code ELIFECYCLE
  npm http 304 https://registry.npmjs.org/crc/0.2.0
  npm http 304 https://registry.npmjs.org/qs/0.5.1
  npm http 304 https://registry.npmjs.org/pause/0.0.1
  npm http 304 https://registry.npmjs.org/bson/0.1.5
  npm http 304 https://registry.npmjs.org/formidable/1.0.11
  npm http 304 https://registry.npmjs.org/bytes/0.1.0
  
  &gt; bson@0.1.5 install D:\Dropbox\Projekte\RZ\Finance-Man-GUI\node_modules\mongoos
  e\node_modules\mongodb\node_modules\bson
  &gt; node install.js || (exit 0)
  
  ================================================================================
  
  =                                                                              =
  
  =  Attempting to build bson c++ extension                                      =
  
  =   Windows: no build will be attempted as binaries are prepackaged            =
  
  =   Unix: on failure the package will still install without the C++ extension  =
  
  =                                                                              =
  
  ================================================================================
  
  npm ERR!
  npm ERR! Additional logging details can be found in:
  npm ERR!     D:\Dropbox\Projekte\RZ\Finance-Man-GUI\npm-debug.log
  npm ERR! not ok code 0
  </code></pre>
  
  <p>I've already installed Python &lt; v2.7 and .NET Framework SDK 2.0.
  I also downloaded a package called win7sdkx64.exe which was what i think the sdk for Visual Studio. I liked all of the dependencies in my <code>Path</code> as following:</p>
  
  <pre><code>%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;C:\Program Files\nodejs\;E:\Program Files\Java\jdk1.6.0_38\bin;C:\Program Files (x86)\Heroku\bin;C:\Program Files (x86)\ruby-1.9.2\bin;C:\Program Files (x86)\git\bin;C:\Program Files (x86)\git\cmd;E:\Program Files (x86)\Heroku\bin;C:\mongodb-win32-x86_64-2.2.2\bin;E:\xampp\mysql\bin;E:\xampp\apache\bin;E:\Python27;C:\Program Files (x86)\Microsoft Visual Studio 8\VC\vcpackages;C:\Program Files\Microsoft Windows Performance Toolkit\;E:\Program Files (x86)\openssl-0.9.8k_X64\bin
  </code></pre>
  
  <p>but i still get these errors.
  What can i try next? Install Visual Studio completly?</p>