Gulp: Object #<Readable> has no method 'write' Error -

i'm getting error when trying run gulp command. worked fine last week. reason why i'm getting following error now?

typeerror: object #<readable> has no method 'write'

this js task looks like.

// js task gulp.task('js', function () {   var browserified = transform(function(filename) {     var b = browserify(filename);     return b.bundle();   });   return gulp.src('./src/js/*.js')     .pipe(browserified)     .pipe(sourcemaps.init({loadmaps: true}))     .pipe(uglify())     .pipe(sourcemaps.write('./'))     .pipe(gulp.dest('./build/js'))     .pipe(reload({stream: true})) }); 

here's link entire gulpfile.js: https://github.com/realph/gulp-zero/blob/master/gulpfile.js

any appreciated. in advance!

what version of browserify have @ moment? browserify changed not accept inward streams, creating some. correct, adapted code:

var source = require('vinyl-source-stream'); var buffer = require('gulp-buffer');  gulp.task('js', function () {   return browserify({entries:['./src/js/main.js']})     .bundle()     .pipe(source('bundle.js'))     .pipe(buffer())     .pipe(sourcemaps.init({loadmaps: true}))     .pipe(uglify())     .pipe(sourcemaps.write('./'))     .pipe(gulp.dest('./build/js'))     .pipe(reload({stream: true})) }); 

update changed filename real file. note browserify works best if have 1 file there. if have create multiple bundles, please refer this article