laravel - npm install questions, run into some problems -


i run first time:

npm install , this:

npm warn engine laravel-mix@0.8.9: wanted: {"node":">=6.0.0"} (current:         {"node":"4.4.7","npm":"2.15.8"}) npm warn engine webpack-dev-server@2.4.2: wanted: {"node":">=4.7"} (current: {"node":"4.4.7","npm":"2.15.8"}) npm warn optional dep failed, continuing fsevents@1.1.1

what can these warnings? how upgrade wants?

my package.json "devdependencies": { "axios": "^0.15.3", "bootstrap-sass": "^3.3.7", "jquery": "^3.1.1", "laravel-mix": "^0.8.1", "lodash": "^4.17.4", "vue": "^2.1.10"

update nodejs, run npm cache clear, delere node_modules folder , run npm install


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