title: TRACKER : error TRK0005: Failed to locate: "CL.exe". The system cannot find the file specified
body: <p>I'm trying to execute the following command in a Node.js project on Windows 8:</p>
  
  <blockquote>
    <p>npm install web3@1.0.0-beta.24</p>
  </blockquote>
  
  <p>But I'm gettig an error that I have node idea how to deal with.</p>
  
  <blockquote>
    <p>TRACKER : error TRK0005: Failed to locate: "CL.exe". The system cannot
    find the file specified. [C:\Projects\myproject\node_modules\scrypt\build\copied_files.vcxproj]</p>
  </blockquote>
  
  <p>Here is the entire output:</p>
  
  <blockquote>
    <blockquote>
      <p>scrypt@6.0.3 preinstall C:\Projects\myproject\node_modules\scrypt
      node node-scrypt-preinstall.js</p>
      
      <p>scrypt@6.0.3 install C:\Projects\myproject\node_modules\scrypt
      node-gyp rebuild</p>
    </blockquote>
    
    <p>C:\Projects\myproject\node_modules\scrypt>if not defined
    npm_config_node_gyp (node "C:\Program
    Files\nodejs\node_modules\npm\bin\node-gyp-bin\....\node_modules\node-gyp\bin\node-g
    yp.js" rebuild )  else (node "" rebuild ) Warning: Missing input
    files: C:\Projects\myproject\node_modules\scrypt\build..\scrypt\win\include\config.h
    Building the projects in this solution one at a time. To enable
    parallel build, please add the "/m" switch. C:\Program Files
    (x86)\MSBuild\Microsoft.Cpp\v4.0\V140\Microsoft.CppBuild.targets(366,5):
    warning MSB8003: Could not find WindowsSDKDir variable from the
    registry.  TargetFrameworkVersion  or PlatformToolset may be set to an
    invalid version number. [C:\Projects\myproject\node_modules\scrypt\build\copied_files.vcxproj]   Copying
    scrypt/win/include/config.h to scrypt/scrypt-1.2.0/config.h   The
    system cannot find the file specified. TRACKER : error TRK0005: Failed
    to locate: "CL.exe". The system cannot find the file specified.
    [C:\Projects\myproject\node_modules\scrypt\build\copied_files.vcxproj]</p>
    
    <p>C:\Program Files
    (x86)\MSBuild\Microsoft.Cpp\v4.0\V140\Microsoft.CppBuild.targets(366,5):
    warning MSB8003: Could not find WindowsSDKDir variable from the
    registry.  TargetFrameworkVersion  or PlatformToolset may be set to an
    invalid version number. [C:\Projects\myproject\node_modules\scrypt\build\scrypt_wrapper.vcxproj] TRACKER :
    error TRK0005: Failed to locate: "CL.exe". The system cannot find the
    file specified. [C:\Projects\myproject\node_modules\scrypt\build\scrypt_wrapper.vcxproj]</p>
    
    <p>gyp ERR! build error gyp ERR! stack Error: <code>C:\Program Files
    (x86)\MSBuild\14.0\bin\msbuild.exe</code> 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:258:23)
    gyp ERR! stack     at emitTwo (events.js:126:13) gyp ERR! stack     at
    ChildProcess.emit (events.js:214:7) gyp ERR! stack     at
    Process.ChildProcess._handle.onexit (internal/child_process.js:198:12)
    gyp ERR! System Windows_NT 6.2.9200 gyp ERR! command "C:\Program
    Files\nodejs\node.exe" "C:\Program
    Files\nodejs\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js"
    "rebuild" gyp ERR! cwd C:\Projects\myproject\node_modules\scrypt gyp ERR! node -v v8.9.1 gyp ERR! node-gyp
    -v v3.6.2 gyp ERR! not ok npm WARN inbanner@1.6.0 No repository field.</p>
    
    <p>npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! scrypt@6.0.3
    install: <code>node-gyp rebuild</code> npm ERR! Exit status 1 npm ERR! npm ERR!
    Failed at the scrypt@6.0.3 install script. npm ERR! This is probably
    not a problem with npm. There is likely additional logging output
    above.</p>
    
    <p>npm ERR! A complete log of this run can be found in: npm ERR!<br>
    C:\Users\user\AppData\Roaming\npm-cache_logs\2017-11-13T01_31_12_133Z-debug.log</p>
  </blockquote>
  
  <p>Help!</p>