title: Nodejs Bcrypt + Heroku fail deploy
body: <p>i am having problems when i try to do a deployment in heroku.  The funny part is this was working three days ago. Also, is working fine in local machine.</p>
  
  <p>The version of Bcrypt is 3.0.0, node 8.12.0</p>
  
  <p>I really need to deploy this server. Could you please show me how to fix this error? I have tried some solutions I found but nothing worked. I even tried to uninstall and install again Bcrypt but does not work.</p>
  
  <p>Thanks for the help. </p>
  
  <p>This is the log.</p>
  
  <pre><code>-----&gt; Node.js app detected
  
  -----&gt; Creating runtime environment
  
         NPM_CONFIG_LOGLEVEL=error
         NODE_VERBOSE=false
         NODE_ENV=production
         NODE_MODULES_CACHE=true
  
  -----&gt; Installing binaries
         engines.node (package.json):  unspecified
         engines.npm (package.json):   unspecified (use default)
  
         Resolving node version 8.x...
         Downloading and installing node 8.12.0...
         Using default npm version: 6.4.1
  
  -----&gt; Restoring cache
         - node_modules
  
  -----&gt; Building dependencies
         Installing node modules (package.json + package-lock)
  
         &gt; bcrypt@3.0.0 install /tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt
         &gt; node-pre-gyp install --fallback-to-build
  
         make: Entering directory '/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt/build'
         make: Entering directory '/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt/build'
         CXX(target) Release/obj.target/bcrypt_lib/src/blowfish.o
         CXX(target) Release/obj.target/bcrypt_lib/src/blowfish.o
         rm: cannot remove './Release/.deps/Release/obj.target/bcrypt_lib/src/blowfish.o.d.raw': No such file or directory
         bcrypt_lib.target.mk:103: recipe for target 'Release/obj.target/bcrypt_lib/src/blowfish.o' failed
         make: *** [Release/obj.target/bcrypt_lib/src/blowfish.o] Error 1
         make: Leaving directory '/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt/build'
         CXX(target) Release/obj.target/bcrypt_lib/src/bcrypt.o
         gyp ERR! build error
         gyp ERR! stack Error: `make` failed with exit code: 2
         gyp ERR! stack     at ChildProcess.onExit (/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:262:23)
         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 Linux 4.4.0-1027-aws
         gyp ERR! command "/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/.heroku/node/bin/node" "/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "build" "--fallback-to-build" "--module=/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt/lib/binding/bcrypt_lib.node" "--module_name=bcrypt_lib" "--module_path=/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt/lib/binding" "--napi_version=3" "--node_abi_napi=napi"
         gyp ERR! cwd /tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt
         gyp ERR! node -v v8.12.0
         gyp ERR! node-gyp -v v3.8.0
         gyp ERR! not ok
         node-pre-gyp ERR! build error
         node-pre-gyp ERR! stack Error: Failed to execute '/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/.heroku/node/bin/node /tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js build --fallback-to-build --module=/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt/lib/binding/bcrypt_lib.node --module_name=bcrypt_lib --module_path=/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt/lib/binding --napi_version=3 --node_abi_napi=napi' (1)
         node-pre-gyp ERR! stack     at ChildProcess.&lt;anonymous&gt; (/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt/node_modules/node-pre-gyp/lib/util/compile.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:915:16)
         node-pre-gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:209:5)
         node-pre-gyp ERR! System Linux 4.4.0-1027-aws
         node-pre-gyp ERR! command "/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/.heroku/node/bin/node" "/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt/node_modules/.bin/node-pre-gyp" "install" "--fallback-to-build"
         node-pre-gyp ERR! cwd /tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt
         node-pre-gyp ERR! node -v v8.12.0
         node-pre-gyp ERR! node-pre-gyp -v v0.10.2
         node-pre-gyp ERR! not ok
         Failed to execute '/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/.heroku/node/bin/node /tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js build --fallback-to-build --module=/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt/lib/binding/bcrypt_lib.node --module_name=bcrypt_lib --module_path=/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt/lib/binding --napi_version=3 --node_abi_napi=napi' (1)
         ../src/bcrypt.cc:316:1: fatal error: opening dependency file ./Release/.deps/Release/obj.target/bcrypt_lib/src/bcrypt.o.d.raw: No such file or directory
         compilation terminated.
         bcrypt_lib.target.mk:103: recipe for target 'Release/obj.target/bcrypt_lib/src/bcrypt.o' failed
         make: *** [Release/obj.target/bcrypt_lib/src/bcrypt.o] Error 1
         make: Leaving directory '/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt/build'
         gyp ERR! build error
         gyp ERR! stack Error: `make` failed with exit code: 2
         gyp ERR! stack     at ChildProcess.onExit (/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:262:23)
         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 Linux 4.4.0-1027-aws
         gyp ERR! command "/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/.heroku/node/bin/node" "/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/.heroku/node/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "build" "--fallback-to-build" "--module=/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt/lib/binding/bcrypt_lib.node" "--module_name=bcrypt_lib" "--module_path=/tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt/lib/binding" "--napi_version=3" "--node_abi_napi=napi"
         gyp ERR! cwd /tmp/build_7bec2ec99162a9fbf0c48b54d7fcf7ea/node_modules/bcrypt
         gyp ERR! node -v v8.12.0
         gyp ERR! node-gyp -v v3.8.0
         gyp ERR! not ok
         npm ERR! code ELIFECYCLE
         npm ERR! errno 1
         npm ERR! bcrypt@3.0.0 install: `node-pre-gyp install --fallback-to-build`
         npm ERR! Exit status 1
         npm ERR!
         npm ERR! Failed at the bcrypt@3.0.0 install script.
         npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
  
         npm ERR! A complete log of this run can be found in:
         npm ERR!     /tmp/npmcache.FCizS/_logs/2018-09-12T04_21_02_165Z-debug.log
  -----&gt; Build failed
  
         We're sorry this build is failing! You can troubleshoot common issues here:
         https://devcenter.heroku.com/articles/troubleshooting-node-deploys
  
         Some possible problems:
  
         - Node version not specified in package.json
         https://devcenter.heroku.com/articles/nodejs-support#specifying-a-node-js-version
  
         Love,
         Heroku
  
   !     Push rejected, failed to compile Node.js app.
   !     Push failed
  </code></pre>