title: bcrypt@1.0.3 install: `node-pre-gyp install --fallback-to-build`
body: <p>While installing bcrypt I'm getting this error in my windows machine, I'm using</p>
  
  <ul>
  <li>node v8.9.4 </li>
  <li>npm v5.6.0 </li>
  <li>bcrypt v1.0.3</li>
  </ul>
  
  <blockquote>
    <p>C:\Users\user\Desktop\mysql_node_api\register_login\register_login>npm
    install bcrypt --save > bcrypt@1.0.3 install
    C:\Users\user\Desktop\mysql_node_api\register_login\regis
    ter_login\node_modules\bcrypt > node-pre-gyp install
    --fallback-to-build node-pre-gyp ERR! Tried to download(undefined): <a href="https://github.com/kelektiv/node" rel="noreferrer">https://github.com/kelektiv/node</a>
    .bcrypt.js/releases/download/v1.0.3/bcrypt_lib-v1.0.3-node-v57-win32-x64.tar.gz
        node-pre-gyp ERR! Pre-built binaries not found for bcrypt@1.0.3 and node@8.9.4 ( node-v57 ABI) (falling back to source compile with
    node-gyp) gyp ERR! configure error gyp ERR! stack Error: Can't find
    Python executable "python", you can set the PYT HON
        env variable. gyp ERR! stack at PythonFinder.failNoPython (C:\Users\user\AppData\Roaming\n
    pm\node_modules\npm\node_modules\node-gyp\lib\configure.js:483:19) gyp
    ERR! stack at PythonFinder.
         (C:\Users\user\AppData\Roaming\np m\node_modules\npm\node_modules\node-gyp\lib\configure.js:508:16) gyp
    ERR! stack at
    C:\Users\user\AppData\Roaming\npm\node_modules\npm\node_mo
    dules\graceful-fs\polyfills.js:284:29 gyp ERR! stack at
    FSReqWrap.oncomplete
          (fs.js:152:21) gyp ERR! System Windows_NT 6.1.7601 gyp ERR! command "C:\Program Files\nodejs\node.exe"
    "C:\Users\user\AppData
    \Roaming\npm\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js"
    "co nfigure" "--fallback-to-build"
    "--module=C:\Users\user\Desktop\mysql_node_ap
          i\register_login\register_login\node_modules\bcrypt\lib\binding\bcrypt_li
    b.node" "--module_name=bcrypt_lib"
    "--module_path=C:\Users\user\Desktop\mysq
    l_node_api\register_login\register_login\node_modules\bcrypt\lib\binding"
    gyp ERR!
          cwd C:\Users\user\Desktop\mysql_node_api\register_login\register_login\
    node_modules\bcrypt gyp ERR! node -v v8.9.4 gyp ERR! node-gyp -v
    v3.6.2 gyp ERR! not ok node-pre-gyp ERR! build error node-pre-gyp ERR!
    stack Error: Failed to execute 'C:\Program
          Files\nodejs\node.e xe C:\Users\user\AppData\Roaming\npm\node_modules\npm\node_modules\node-gyp\bin\
    node-gyp.js configure --fallback-to-build
    --module=C:\Users\user\Desktop\mysql_n ode_api\register_login\register_login\node_modules\bcrypt\lib\binding\bcrypt_lib
          .node --module_name=bcrypt_lib --module_path=C:\Users\user\Desktop\mysql_node_ap i\register_login\register_login\node_modules\bcrypt\lib\binding' (1)
    node-pre-gyp ERR! stack at ChildProcess.
           (C:\Users\user\Desktop\m ysql_node_api\register_login\register_login\node_modules\node-pre-gyp\lib\util\c
    ompile.js:83:29) node-pre-gyp ERR! stack at emitTwo (events.js:126:13)
    node-pre-gyp ERR! stack at ChildProcess.emit (events.js:214:7)
    node-pre-gyp
            ERR! stack at maybeClose (internal/child_process.js:925:16) node-pre-gyp ERR! stack at Process.ChildProcess._handle.onexit
    (internal/chi ld_process.js:209:5) node-pre-gyp ERR! System Windows_NT
    6.1.7601 node-pre-gyp ERR! command "C:\Program Files\nodejs\node.exe"
            "C:\Users\user \Desktop\mysql_node_api\register_login\register_login\node_modules\node-pr
    e-gyp\bin\node-pre-gyp" "install" "--fallback-to-build" node-pre-gyp
    ERR! cwd C:\Users\user\Desktop\mysql_node_api\register_login\regist
    er_login\node_modules\bcrypt
            node-pre-gyp ERR! node -v v8.9.4 node-pre-gyp ERR! node-pre-gyp -v v0.6.36 node-pre-gyp ERR! not ok Failed to execute
    'C:\Program Files\nodejs\node.exe C:\Users\user\AppData\Roamin
    g\npm\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js configure
            --fallbac k-to-build --module=C:\Users\user\Desktop\mysql_node_api\register_login\register _login\node_modules\bcrypt\lib\binding\bcrypt_lib.node --module_name=bcrypt_lib --module_path=C:\Users\user\Desktop\mysql_node_api\register_login\register_login
            \node_modules\bcrypt\lib\binding' (1) npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! bcrypt@1.0.3 install: node-pre-gyp install
    --fallback-to-build npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the bcrypt@1.0.3 install script. npm ERR!</p>
    
    <p>This is probably not a problem with npm. There is likely additional log ging output above. npm ERR! A complete log of this run
    can be found in: npm ERR!
    C:\Users\user\AppData\Roaming\npm-cache_logs\2018-02-25T14_42_29_5
    29Z-debug.log </p>
  </blockquote>