Error in npm install postinstall

I get an error when the postinstall tries to run (this error also happens sporadically while the dev server is running). I tried searching around for the error here and on Google but couldn't find anything similar. Any guidance on how to debug this?

```
Osmans-MacBook-Pro:react-redux-universal-hot-example osman$ npm install

> react-redux-universal-hot-example@0.9.0 postinstall /Users/osman/projects/react-redux-universal-hot-example
> webpack --display-error-details --config webpack/prod.config.js

clean-webpack-plugin: /Users/osman/projects/react-redux-universal-hot-example/webpack project root is outside of project. Skipping all...
Hash: e626b2c9f8a1ada0a8a7
Version: webpack 1.12.10
Time: 25515ms
Asset Size Chunks Chunk Names
448c34a56d699c29117adc64c43affeb.woff2 18 kB [emitted]
32400f4e08932a94d8bfd2422702c446.eot 70.8 kB [emitted]
a35720c2fed2c7f043bc7e4ffb45e073.woff 83.6 kB [emitted]
a3de2170e4e9df77161ea5d3f31b2668.ttf 142 kB [emitted]
f775f9cca88e21d45bebe185b27c0e5b.svg 366 kB [emitted]
f4769f9bdb7466be65088239c12046d1.eot 20.1 kB [emitted]
fa2772327f55d8198301fdb8bcfc8158.woff 23.4 kB [emitted]
db812d8a70a4e88e888744c1c9a27e89.woff2 66.6 kB [emitted]
e18bbf611f2a2e43afc071aa2f4e1512.ttf 45.4 kB [emitted]
89889688147bd7575d6327160d64e760.svg 109 kB [emitted]
c29770d03d2e95e3ea5899d57c6cfeab.jpg 92.2 kB [emitted]
main-d383937e16e18e9c1816.js 838 kB 0 [emitted] main
main-d383937e16e18e9c1816.css 157 kB 0 [emitted] main
main-d383937e16e18e9c1816.js.map 6.62 MB 0 [emitted] main
main-d383937e16e18e9c1816.css.map 6.16 kB 0 [emitted] main
[0] multi main 52 bytes {0} [built]
+ 1119 hidden modules

WARNING in ./~/socket.io-client/~/engine.io-client/~/ws/lib/Validation.js
Module not found: Error: Cannot resolve module 'utf-8-validate' in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/lib
resolve module utf-8-validate in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/lib
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/utf-8-validate doesn't exist (module as directory)
resolve 'file' utf-8-validate in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules
resolve file
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/utf-8-validate doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/utf-8-validate.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/utf-8-validate.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/utf-8-validate.jsx doesn't exist
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/utf-8-validate doesn't exist (module as directory)
resolve 'file' utf-8-validate in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules
resolve file
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/utf-8-validate doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/utf-8-validate.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/utf-8-validate.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/utf-8-validate.jsx doesn't exist
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/utf-8-validate doesn't exist (module as directory)
resolve 'file' utf-8-validate in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules
resolve file
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/utf-8-validate doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/utf-8-validate.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/utf-8-validate.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/utf-8-validate.jsx doesn't exist
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/src
/Users/osman/projects/react-redux-universal-hot-example/src/utf-8-validate doesn't exist (module as directory)
resolve 'file' utf-8-validate in /Users/osman/projects/react-redux-universal-hot-example/src
resolve file
/Users/osman/projects/react-redux-universal-hot-example/src/utf-8-validate doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/src/utf-8-validate.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/src/utf-8-validate.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/src/utf-8-validate.jsx doesn't exist
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/node_modules
/Users/osman/projects/react-redux-universal-hot-example/node_modules/utf-8-validate doesn't exist (module as directory)
resolve 'file' utf-8-validate in /Users/osman/projects/react-redux-universal-hot-example/node_modules
resolve file
/Users/osman/projects/react-redux-universal-hot-example/node_modules/utf-8-validate doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/utf-8-validate.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/utf-8-validate.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/utf-8-validate.jsx doesn't exist
looking for modules in /Users/osman/src
/Users/osman/src/utf-8-validate doesn't exist (module as directory)
resolve 'file' utf-8-validate in /Users/osman/src
resolve file
/Users/osman/src/utf-8-validate doesn't exist
/Users/osman/src/utf-8-validate.json doesn't exist
/Users/osman/src/utf-8-validate.js doesn't exist
/Users/osman/src/utf-8-validate.jsx doesn't exist
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/utf-8-validate]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/utf-8-validate]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/utf-8-validate.json]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/utf-8-validate.js]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/utf-8-validate.jsx]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/utf-8-validate]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/utf-8-validate]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/utf-8-validate.json]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/utf-8-validate.js]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/utf-8-validate.jsx]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/utf-8-validate]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/utf-8-validate]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/utf-8-validate.json]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/utf-8-validate.js]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/utf-8-validate.jsx]
[/Users/osman/projects/react-redux-universal-hot-example/src/utf-8-validate]
[/Users/osman/projects/react-redux-universal-hot-example/src/utf-8-validate]
[/Users/osman/projects/react-redux-universal-hot-example/src/utf-8-validate.json]
[/Users/osman/projects/react-redux-universal-hot-example/src/utf-8-validate.js]
[/Users/osman/projects/react-redux-universal-hot-example/src/utf-8-validate.jsx]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/utf-8-validate]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/utf-8-validate]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/utf-8-validate.json]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/utf-8-validate.js]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/utf-8-validate.jsx]
[/Users/osman/src/utf-8-validate]
[/Users/osman/src/utf-8-validate]
[/Users/osman/src/utf-8-validate.json]
[/Users/osman/src/utf-8-validate.js]
[/Users/osman/src/utf-8-validate.jsx]
@ ./~/socket.io-client/~/engine.io-client/~/ws/lib/Validation.js 10:19-44

WARNING in ./~/socket.io-client/~/engine.io-client/~/ws/lib/BufferUtil.js
Module not found: Error: Cannot resolve module 'bufferutil' in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/lib
resolve module bufferutil in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/lib
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/bufferutil doesn't exist (module as directory)
resolve 'file' bufferutil in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules
resolve file
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/bufferutil doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/bufferutil.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/bufferutil.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/bufferutil.jsx doesn't exist
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/bufferutil doesn't exist (module as directory)
resolve 'file' bufferutil in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules
resolve file
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/bufferutil doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/bufferutil.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/bufferutil.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/bufferutil.jsx doesn't exist
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/bufferutil doesn't exist (module as directory)
resolve 'file' bufferutil in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules
resolve file
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/bufferutil doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/bufferutil.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/bufferutil.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/bufferutil.jsx doesn't exist
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/src
/Users/osman/projects/react-redux-universal-hot-example/src/bufferutil doesn't exist (module as directory)
resolve 'file' bufferutil in /Users/osman/projects/react-redux-universal-hot-example/src
resolve file
/Users/osman/projects/react-redux-universal-hot-example/src/bufferutil doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/src/bufferutil.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/src/bufferutil.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/src/bufferutil.jsx doesn't exist
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/node_modules
/Users/osman/projects/react-redux-universal-hot-example/node_modules/bufferutil doesn't exist (module as directory)
resolve 'file' bufferutil in /Users/osman/projects/react-redux-universal-hot-example/node_modules
resolve file
/Users/osman/projects/react-redux-universal-hot-example/node_modules/bufferutil doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/bufferutil.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/bufferutil.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/bufferutil.jsx doesn't exist
looking for modules in /Users/osman/src
/Users/osman/src/bufferutil doesn't exist (module as directory)
resolve 'file' bufferutil in /Users/osman/src
resolve file
/Users/osman/src/bufferutil doesn't exist
/Users/osman/src/bufferutil.json doesn't exist
/Users/osman/src/bufferutil.js doesn't exist
/Users/osman/src/bufferutil.jsx doesn't exist
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/bufferutil]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/bufferutil]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/bufferutil.json]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/bufferutil.js]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/bufferutil.jsx]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/bufferutil]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/bufferutil]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/bufferutil.json]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/bufferutil.js]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/bufferutil.jsx]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/bufferutil]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/bufferutil]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/bufferutil.json]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/bufferutil.js]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/bufferutil.jsx]
[/Users/osman/projects/react-redux-universal-hot-example/src/bufferutil]
[/Users/osman/projects/react-redux-universal-hot-example/src/bufferutil]
[/Users/osman/projects/react-redux-universal-hot-example/src/bufferutil.json]
[/Users/osman/projects/react-redux-universal-hot-example/src/bufferutil.js]
[/Users/osman/projects/react-redux-universal-hot-example/src/bufferutil.jsx]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/bufferutil]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/bufferutil]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/bufferutil.json]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/bufferutil.js]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/bufferutil.jsx]
[/Users/osman/src/bufferutil]
[/Users/osman/src/bufferutil]
[/Users/osman/src/bufferutil.json]
[/Users/osman/src/bufferutil.js]
[/Users/osman/src/bufferutil.jsx]
@ ./~/socket.io-client/~/engine.io-client/~/ws/lib/BufferUtil.js 10:19-40

ERROR in ./~/socket.io-client/~/engine.io-client/~/ws/lib/WebSocketServer.js
Module not found: Error: Cannot resolve module 'tls' in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/lib
resolve module tls in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/lib
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/tls doesn't exist (module as directory)
resolve 'file' tls in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules
resolve file
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/tls doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/tls.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/tls.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/tls.jsx doesn't exist
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/tls doesn't exist (module as directory)
resolve 'file' tls in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules
resolve file
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/tls doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/tls.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/tls.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/tls.jsx doesn't exist
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/src
/Users/osman/projects/react-redux-universal-hot-example/src/tls doesn't exist (module as directory)
resolve 'file' tls in /Users/osman/projects/react-redux-universal-hot-example/src
resolve file
/Users/osman/projects/react-redux-universal-hot-example/src/tls doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/src/tls.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/src/tls.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/src/tls.jsx doesn't exist
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/node_modules
/Users/osman/projects/react-redux-universal-hot-example/node_modules/tls doesn't exist (module as directory)
resolve 'file' tls in /Users/osman/projects/react-redux-universal-hot-example/node_modules
resolve file
/Users/osman/projects/react-redux-universal-hot-example/node_modules/tls doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/tls.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/tls.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/tls.jsx doesn't exist
looking for modules in /Users/osman/src
/Users/osman/src/tls doesn't exist (module as directory)
resolve 'file' tls in /Users/osman/src
resolve file
/Users/osman/src/tls doesn't exist
/Users/osman/src/tls.json doesn't exist
/Users/osman/src/tls.js doesn't exist
/Users/osman/src/tls.jsx doesn't exist
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/tls doesn't exist (module as directory)
resolve 'file' tls in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules
resolve file
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/tls doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/tls.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/tls.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/tls.jsx doesn't exist
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/tls]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/tls]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/tls.json]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/tls.js]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/tls.jsx]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/tls]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/tls]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/tls.json]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/tls.js]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/tls.jsx]
[/Users/osman/projects/react-redux-universal-hot-example/src/tls]
[/Users/osman/projects/react-redux-universal-hot-example/src/tls]
[/Users/osman/projects/react-redux-universal-hot-example/src/tls.json]
[/Users/osman/projects/react-redux-universal-hot-example/src/tls.js]
[/Users/osman/projects/react-redux-universal-hot-example/src/tls.jsx]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/tls]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/tls]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/tls.json]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/tls.js]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/tls.jsx]
[/Users/osman/src/tls]
[/Users/osman/src/tls]
[/Users/osman/src/tls.json]
[/Users/osman/src/tls.js]
[/Users/osman/src/tls.jsx]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/tls]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/tls]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/tls.json]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/tls.js]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/tls.jsx]
@ ./~/socket.io-client/~/engine.io-client/~/ws/lib/WebSocketServer.js 15:10-24

ERROR in ./~/socket.io-client/~/engine.io-client/~/ws/~/options/lib/options.js
Module not found: Error: Cannot resolve module 'fs' in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/options/lib
resolve module fs in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/options/lib
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/fs doesn't exist (module as directory)
resolve 'file' fs in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules
resolve file
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/fs doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/fs.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/fs.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/fs.jsx doesn't exist
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/fs doesn't exist (module as directory)
resolve 'file' fs in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules
resolve file
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/fs doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/fs.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/fs.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/fs.jsx doesn't exist
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/fs doesn't exist (module as directory)
resolve 'file' fs in /Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules
resolve file
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/fs doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/fs.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/fs.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/fs.jsx doesn't exist
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/src
/Users/osman/projects/react-redux-universal-hot-example/src/fs doesn't exist (module as directory)
resolve 'file' fs in /Users/osman/projects/react-redux-universal-hot-example/src
resolve file
/Users/osman/projects/react-redux-universal-hot-example/src/fs doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/src/fs.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/src/fs.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/src/fs.jsx doesn't exist
looking for modules in /Users/osman/projects/react-redux-universal-hot-example/node_modules
/Users/osman/projects/react-redux-universal-hot-example/node_modules/fs doesn't exist (module as directory)
resolve 'file' fs in /Users/osman/projects/react-redux-universal-hot-example/node_modules
resolve file
/Users/osman/projects/react-redux-universal-hot-example/node_modules/fs doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/fs.json doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/fs.js doesn't exist
/Users/osman/projects/react-redux-universal-hot-example/node_modules/fs.jsx doesn't exist
looking for modules in /Users/osman/src
/Users/osman/src/fs doesn't exist (module as directory)
resolve 'file' fs in /Users/osman/src
resolve file
/Users/osman/src/fs doesn't exist
/Users/osman/src/fs.json doesn't exist
/Users/osman/src/fs.js doesn't exist
/Users/osman/src/fs.jsx doesn't exist
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/fs]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/fs]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/fs.json]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/fs.js]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/node_modules/fs.jsx]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/fs]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/fs]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/fs.json]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/fs.js]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/fs.jsx]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/fs]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/fs]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/fs.json]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/fs.js]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/socket.io-client/node_modules/fs.jsx]
[/Users/osman/projects/react-redux-universal-hot-example/src/fs]
[/Users/osman/projects/react-redux-universal-hot-example/src/fs]
[/Users/osman/projects/react-redux-universal-hot-example/src/fs.json]
[/Users/osman/projects/react-redux-universal-hot-example/src/fs.js]
[/Users/osman/projects/react-redux-universal-hot-example/src/fs.jsx]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/fs]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/fs]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/fs.json]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/fs.js]
[/Users/osman/projects/react-redux-universal-hot-example/node_modules/fs.jsx]
[/Users/osman/src/fs]
[/Users/osman/src/fs]
[/Users/osman/src/fs.json]
[/Users/osman/src/fs.js]
[/Users/osman/src/fs.jsx]
@ ./~/socket.io-client/~/engine.io-client/~/ws/~/options/lib/options.js 6:9-22
Child extract-text-webpack-plugin:
Asset Size Chunks Chunk Names
32400f4e08932a94d8bfd2422702c446.eot 70.8 kB [emitted]
db812d8a70a4e88e888744c1c9a27e89.woff2 66.6 kB [emitted]
a35720c2fed2c7f043bc7e4ffb45e073.woff 83.6 kB [emitted]
a3de2170e4e9df77161ea5d3f31b2668.ttf 142 kB [emitted]
f775f9cca88e21d45bebe185b27c0e5b.svg 366 kB [emitted]
+ 16 hidden modules
Child extract-text-webpack-plugin:
+ 2 hidden modules
Child extract-text-webpack-plugin:
+ 3 hidden modules
Child extract-text-webpack-plugin:
+ 2 hidden modules
Child extract-text-webpack-plugin:
+ 2 hidden modules
Child extract-text-webpack-plugin:
+ 2 hidden modules
Child extract-text-webpack-plugin:
+ 2 hidden modules
Child extract-text-webpack-plugin:
+ 2 hidden modules
Child extract-text-webpack-plugin:
Asset Size Chunks Chunk Names
f4769f9bdb7466be65088239c12046d1.eot 20.1 kB [emitted]
fa2772327f55d8198301fdb8bcfc8158.woff 23.4 kB [emitted]
448c34a56d699c29117adc64c43affeb.woff2 18 kB [emitted]
e18bbf611f2a2e43afc071aa2f4e1512.ttf 45.4 kB [emitted]
89889688147bd7575d6327160d64e760.svg 109 kB [emitted]
+ 7 hidden modules
```