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Leha Lepeha2018-08-20 14:26:05
css
Leha Lepeha, 2018-08-20 14:26:05

Error in console conemu TypeError: userref.assists is not a function what is the problem?

I'm trying to minify css and js files, but nothing happens, I run gulp userref, and he answers me
[14:14:28] Using gulpfile C:\localserver\OSPanel\domains\project__gulp\gulpfile.js
[14:14:28 ] Starting 'useref'...
[14:14:28] 'useref' errored after 163 µs
[14:14:28] TypeError: useref.assets is not a function
at Gulp. (C:\localserver\OSPanel\domains\project__gulp\gulpfile.js:75:23)
at module.exports (C:\localserver\OSPanel\domains\project__gulp\node_modules\orchestrator\lib\runTask.js:34:7)
at Gulp.Orchestrator._runTask (C:\localserver\OSPanel\domains\project__gulp\node_modules\orchestrator\index.js:273:3)
at Gulp.Orchestrator._runStep (C:\localserver\OSPanel\domains\project__gulp\node_modules\orchestrator\index.js:214:10)
at Gulp.Orchestrator.start (C:\localserver\OSPanel\domains\project__gulp\node_modules\ orchestrator\index.js:134:8)
at C:\Users\alex2\AppData\Roaming\npm\node_modules\gulp\bin\gulp.js:129:20
at process._tickCallback (internal/process/next_tick.js: 61:11)
at Function.Module.runMain (internal/modules/cjs/loader.js:745:11)
at startup (internal/bootstrap/node.js:266:19)
at bootstrapNodeJSCore (internal/bootstrap/node.js :596:3)
Here is the JS code

var gulp = require('gulp');
var sass = require('gulp-sass');
var browserSync = require('browser-sync');
var useref = require('gulp-useref');
var uglify = require('gulp-uglify');
var minifyCSS = require('gulp-minify-css');

gulp.task('sass', function() {
  return gulp.src('app/scss/**/*.scss')
 .pipe(sass())
 .pipe(gulp.dest('app/css'))
 .pipe(browserSync.reload({
 stream: true
 }))
});

gulp.task('watch', function(){
  gulp.watch('app/scss/**/*.scss', ['sass']); 
  // другие ресурсы
})
gulp.task('watch', ['array', 'of', 'tasks', 'to', 'complete','before', 'watch'], function (){
  // ...
})

gulp.task('watch', ['browserSync', 'sass'], function (){
  gulp.watch('app/scss/**/*.scss', ['sass']); 
  // Обновляем браузер при любых изменениях в HTML или JS
  gulp.watch('app/*.html', browserSync.reload); 
  gulp.watch('app/js/**/*.js', browserSync.reload); 
});

gulp.task('browserSync', function() {
  browserSync({
 server: {
 baseDir: 'app'
 },
  })
})

gulp.task('watch', ['browserSync', 'sass'], function (){
  gulp.watch('app/scss/**/*.scss', ['sass']); 
  // Обновляем браузер при любых изменениях в HTML или JS
  gulp.watch('app/*.html', browserSync.reload); 
  gulp.watch('app/js/**/*.js', browserSync.reload); 
});

gulp.task('useref', function(){
  var assets = useref.assets();

  return gulp.src('app/*.html')
 .pipe(assets)
 .pipe(assets.restore())
 .pipe(useref())
 .pipe(gulp.dest('dist'))
});



// другие подключения...
var gulpIf = require('gulp-if');

gulp.task('useref', function(){
  var assets = useref.assets();

  return gulp.src('app/*.html')
 .pipe(assets)
 // Если JS то запускаем uglify()
 .pipe(gulpIf('*.js', uglify())) 
 .pipe(assets.restore())
 .pipe(useref())
 .pipe(gulp.dest('dist'))
});

gulp.task('useref', function(){
  var assets = useref.assets();

  return gulp.src('app/*.html')
 .pipe(assets)
 // Минифицируем только CSS файлы
 .pipe(gulpIf('*.css', minifyCSS()))
 // Uglifies only if it's a Javascript file
 .pipe(gulpIf('*.js', uglify()))
 .pipe(assets.restore())
 .pipe(useref())
 .pipe(gulp.dest('dist'))
});

I don't know much because I'm just learning
Here is HTML
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Document</title>
  
  <!--build:js js/main.min.js -->
  <link href="css/main.css" rel="stylesheet">
  <link href="css/print.css" rel="stylesheet">
  <!-- endbuild -->
</head>
<body>


  This is a gulp starter



  <!--build:js js/main.min.js -->
  <script src="js/lib/a-library.js"></script>
  <script src="js/lib/another-library.js"></script>
  <script src="js/main.js"></script>
  <!-- endbuild -->
</body>
</html>

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1 answer(s)
D
Dmitry Belyaev, 2018-08-20
@Leh_ryb

https://www.npmjs.com/package/gulp-useref#whats-ne...
https://www.npmjs.com/package/gulp-useref#migratio...

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