The project I worked on was built with gulp.

Recently I updated the node version to v6.3.1. Then something came wrong.

A task named 'html' throws an error. Here is the part of error code of it.

bogon:toClient work$ gulp html

(node:2519) fs: re-evaluating native module sources is not supported. If you are using the graceful-fs module, please update it to a more recent version.



[10:26:10] Using gulpfile ~/Project/TIME_Cancer_Treatment_Centers_of_America(CTCA)/toClient/gulpfile.js

[10:26:10] Starting 'html'...

(node:2519) fs: re-evaluating native module sources is not supported. If you are using the graceful-fs module, please update it to a more recent version.



events.js:160

      throw er; // Unhandled 'error' event

      ^

Error: CSS parse error scripts/vendor.js: Unexpected input

    1 |!function(t,e){object==typeof module&&object==typeof module.exports?module.exports=t.document?e(t,!0):function(t){if(!t.document)throw new Error(jQuery requires a window with a document);return e(t)}:e(t)}(undefined!=typeof window?window:this,function(t,e){function i(t){var e=lengthin t&&t.length,i=J.type(t);returnfunction!==i&&!J.isWindow(t)&&(!(1!==t.nodeType||!e)||(array===i||0===e||

And the code of task 'html':

var $ = require('gulp-load-plugins')();



gulp.task('html', function() {

  var assets = $.useref.assets({searchPath: ['.tmp']});



  return gulp.src('app/*.html')

    .pipe(assets)

    .pipe($.if('*.js', $.uglify()))

    .pipe($.if('*.css', $.csso()))

    .pipe(assets.restore())

    .pipe($.useref())

    .pipe($.if('*.html', $.minifyHtml({conditionals: true, loose: true})))

    .pipe(gulp.dest('dist'));

});

I googled a lot but I haven't found a proper answer suitable for me.