It just doesnt work. I have spent hours looking on the internet and no solution seems to work for me.

root@ewerton-azevedo-blockchainlab-5299615:/home/ubuntu/workspace# npm 
install ethereumjs-testrpc web3

> uglifyjs-webpack-plugin@0.4.6 postinstall 
> node lib/post_install.js

sh: 1: node: Permission denied
npm WARN enoent ENOENT: no such file or directory, open 
npm WARN workspace No description
npm WARN workspace No repository field.
npm WARN workspace No README data
npm WARN workspace No license field.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.1.2 
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform f or  
fsevents@1.1.2: wanted {"os":"darwin","arch":"any"} (current: 

npm ERR! file sh
npm ERR! errno ENOENT
npm ERR! syscall spawn
npm ERR! uglifyjs-webpack-plugin@0.4.6 postinstall: `node  
npm ERR! spawn ENOENT
npm ERR! 
npm ERR! Failed at the uglifyjs-webpack-plugin@0.4.6 postinstall 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!     /root/.npm/_logs/2017-08-30T13_55_41_153Z-debug.log

1 Answer 1


It works when I try

`npm install web3@0.19`
  • Not a solution if you want latest version Dec 7, 2017 at 2:56

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