WARN after nodejs-legacy installation

error_2.txt

> history@2.0.0-rc2 postinstall /home/franco/Documents/personal/data_science/react-boilerplate/node_modules/react-router/node_modules/history
> node ./npm-scripts/postinstall.js

 
> react-router@2.0.0-rc5 postinstall /home/franco/Documents/personal/data_science/react-boilerplate/node_modules/react-router
> node ./npm-scripts/postinstall.js

\
> expect@1.13.4 postinstall /home/franco/Documents/personal/data_science/react-boilerplate/node_modules/expect
> node ./npm-scripts/postinstall.js

npm WARN engine hawk@3.1.3: wanted: {"node":">=0.10.32"} (current: {"node":"0.10.25","npm":"1.4.21"})
npm WARN engine hoek@2.16.3: wanted: {"node":">=0.10.40"} (current: {"node":"0.10.25","npm":"1.4.21"})
npm WARN engine boom@2.10.1: wanted: {"node":">=0.10.40"} (current: {"node":"0.10.25","npm":"1.4.21"})
npm WARN engine cryptiles@2.0.5: wanted: {"node":">=0.10.40"} (current: {"node":"0.10.25","npm":"1.4.21"})
|
> ngrok@0.2.2 postinstall /home/franco/Documents/personal/data_science/react-boilerplate/node_modules/ngrok
> node ./postinstall.js

ngrok - downloading newest binary...
ngrok - binary downloaded (https://dl.ngrok.com/ngrok_2.0.19_linux_amd64.zip)...
ngrok - binary unpacked.
npm WARN unmet dependency /home/franco/Documents/personal/data_science/react-boilerplate/node_modules/psi/node_modules/download/node_modules/gulp-decompress/node_modules/gulp-util requires object-assign@'^3.0.0' but will load
npm WARN unmet dependency /home/franco/Documents/personal/data_science/react-boilerplate/node_modules/psi/node_modules/object-assign,
npm WARN unmet dependency which is version 4.0.1
npm WARN unmet dependency /home/franco/Documents/personal/data_science/react-boilerplate/node_modules/psi/node_modules/download/node_modules/gulp-decompress/node_modules/gulp-util requires vinyl@'^0.5.0' but will load
npm WARN unmet dependency /home/franco/Documents/personal/data_science/react-boilerplate/node_modules/psi/node_modules/download/node_modules/vinyl,
npm WARN unmet dependency which is version 1.1.1
react-router@2.0.0-rc5 node_modules/react-router
├── invariant@2.2.0 (loose-envify@1.1.0)
├── warning@2.1.0 (loose-envify@1.1.0)
└── history@2.0.0-rc2 (deep-equal@1.0.1, query-string@3.0.0)

expect@1.13.4 node_modules/expect
├── is-regex@1.0.3
├── object-inspect@1.1.0
└── is-equal@1.4.2 (is-arrow-function@2.0.3, is-generator-function@1.0.3, is-date-object@1.0.1, is-string@1.0.4, is-number-object@1.0.3, is-boolean-object@1.0.0, is-callable@1.1.2, is-symbol@1.0.1, has@1.0.1, object.entries@1.0.3)

ngrok@0.2.2 node_modules/ngrok
├── lock@0.1.2
├── node-uuid@1.4.7
├── async@0.9.2
├── decompress-zip@0.1.0 (graceful-fs@3.0.8, mkpath@0.1.0, q@1.4.1, nopt@3.0.6, readable-stream@1.1.13, touch@0.0.3, binary@0.3.0)
└── request@2.67.0 (is-typedarray@1.0.0, aws-sign2@0.6.0, forever-agent@0.6.1, caseless@0.11.0, stringstream@0.0.5, tunnel-agent@0.4.2, oauth-sign@0.8.0, isstream@0.1.2, json-stringify-safe@5.0.1, extend@3.0.0, qs@5.2.0, form-data@1.0.0-rc3, tough-cookie@2.2.1, combined-stream@1.0.5, mime-types@2.1.9, bl@1.0.1, hawk@3.1.3, har-validator@2.0.6, http-signature@1.1.1)