CLI error Hyperledger component (generator-hyperledger-composer)

[jlpuente]

What / Why

Hi, I'm trying to install (with root privileges) the third point of Hyperledger components (from https://hyperledger.github.io/composer/latest/installing/development-tools.html#appendix) in Ubuntu CLI but by entering the instruction

-> npm install -g generator-hyperledger-composer@0.20

I receive the following errors:

npm ERR! Linux 4.15.0-64-generic
npm ERR! argv "/usr/bin/node" "/usr/bin/npm" "install" "-g" "generator-hyperledger-composer@0.20"
npm ERR! node v8.10.0
npm ERR! npm v3.5.2
npm ERR! code EMISSINGARG

npm ERR! typeerror Error: Missing required argument #1
npm ERR! typeerror at andLogAndFinish (/usr/share/npm/lib/fetch-package-metadata.js:31:3)
npm ERR! typeerror at fetchPackageMetadata (/usr/share/npm/lib/fetch-package-metadata.js:51:22)
npm ERR! typeerror at resolveWithNewModule (/usr/share/npm/lib/install/deps.js:456:12)
npm ERR! typeerror at /usr/share/npm/lib/install/deps.js:457:7
npm ERR! typeerror at /usr/share/npm/node_modules/iferr/index.js:13:50
npm ERR! typeerror at /usr/share/npm/lib/fetch-package-metadata.js:37:12
npm ERR! typeerror at addRequestedAndFinish (/usr/share/npm/lib/fetch-package-metadata.js:82:5)
npm ERR! typeerror at returnAndAddMetadata (/usr/share/npm/lib/fetch-package-metadata.js:117:7)
npm ERR! typeerror at pickVersionFromRegistryDocument (/usr/share/npm/lib/fetch-package-metadata.js:134:20)
npm ERR! typeerror at /usr/share/npm/node_modules/iferr/index.js:13:50
npm ERR! typeerror This is an error with npm itself. Please report this error at:
npm ERR! typeerror http://github.com/npm/npm/issues

npm ERR! Please include the following file with any support request:
npm ERR! /root/npm-debug.log

I've upload the The /root/npm-debug.log file as the error suggests.

npm-debug.log

How can I solve it?

Thanks.

[ljharb]

npm 3 is very old, as is node 8. What happens if you upgrade either or both?