How to resolve npm run dev missing script issues?

Question

I am currently in the folder 'C:\Users\vignesh\Documents\Personal Projects\Full-Stack-Web-Developement' on gitbash

npm run dev

executing the above command on gitbash gives me the following error. I am assuming this is due to the NODE_PATH variables not being set properly. Please let me know if anyone has a solution to the below problem

npm ERR! Windows_NT 6.3.9600
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "run" "dev"
npm ERR! node v4.4.6
npm ERR! npm  v2.15.5

npm ERR! missing script: dev

Answer 1

npm run <command>

will run bash script from package.json from 'scripts' value of '' attribute. For example:

package.json

{
   "name": "app",
   "version": "0.0.0",
   "license": "MIT",
   "scripts": {
      "server": "webpack-dashboard -- webpack-dev-server --inline --port 8080",
      "webdriver-update": "webdriver-manager update",
   },
  "dependencies": {
   "@angular/common": "~2.2.0",
   "@angular/core": "~2.2.0"
   },
  "devDependencies": {
   "@types/core-js": "^0.9.0"
   }
}

In this case you can run scripts:

npm run server
npm run webdriver-update

In your case you probably wont have dev script.

Remember that few scripts name are reserved (for example npm test will try to run, npm run pretest, npm run test, npm run posttest). More info on https://docs.npmjs.com/misc/scripts