when i get up my local server with the command(gulp serve), instead the show in the browser my first web part it create a files.

enter image description here

1 Answer 1


In order work it properly make sure gulpfile.js contain the proper code.

  • gulpfile.js should contain following code.
'use strict';

const build = require('@microsoft/sp-build-web');

build.addSuppression(`Warning - [sass] The local CSS class 'ms-Grid' is not camelCase and will not be type-safe.`);

var getTasks = build.rig.getTasks;
build.rig.getTasks = function () {
  var result = getTasks.call(build.rig);

  result.set('serve', result.get('serve-deprecated'));

  return result;


  • package.json file should contain following script.
 "scripts": {
    "build": "gulp bundle",
    "clean": "gulp clean",
    "test": "gulp test"

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