Gulpfile.js请求

Question

我在试着用自动修复器，sass和肝脏来运行一个吞咽文件。我花了整个晚上，但我不能运行他们，它到处都是T。

有人能给一个教程或吞咽文件安装这些插件吗？

非常感谢你

gulpfile.js

'use strict';

var gulp = require('gulp'),
    sass = require('gulp-sass'),
    livereload = require('gulp-livereload'),
    autoprefixer = require('gulp-autoprefixer');

gulp.task('sass', function () {
    gulp.src('public_html/style/scss/**/*.scss')
        .pipe(sass().on('error', sass.logError))
        .pipe(autoprefixer({
            browsers: ['last 2 versions'],
            cascade: false
        }))
        .pipe(gulp.dest('css'))
        .pipe(livereload());
});

gulp.task('watch', function () {
    livereload.listen(35729);
    gulp.watch('public_html/style/scss/**/*.scss', ['sass']);
});

来自终端的错误日志：

[22:46:02] Using gulpfile /var/www/satbalma/Gulpfile.js
[22:46:02] Starting 'watch'...
[22:46:03] Finished 'watch' after 357 ms
[22:48:43] Starting 'sass'...
[22:48:43] Finished 'sass' after 22 ms

/var/www/satbalma/node_modules/gulp-autoprefixer/node_modules/postcss/lib/lazy-result.js:157
    this.processing = new Promise(function (resolve, reject) {
                          ^
ReferenceError: Promise is not defined
at LazyResult.async (/var/www/satbalma/node_modules/gulp-autoprefixer/node_modules/postcss/lib/lazy-result.js:157:31)
at LazyResult.then (/var/www/satbalma/node_modules/gulp-autoprefixer/node_modules/postcss/lib/lazy-result.js:79:21)
at DestroyableTransform._transform (/var/www/satbalma/node_modules/gulp-autoprefixer/index.js:24:6)
at DestroyableTransform.Transform._read (/var/www/satbalma/node_modules/gulp-autoprefixer/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:159:10)
at DestroyableTransform.Transform._write (/var/www/satbalma/node_modules/gulp-autoprefixer/node_modules/through2/node_modules/readable-stream/lib/_stream_transform.js:147:83)
at doWrite (/var/www/satbalma/node_modules/gulp-autoprefixer/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:313:64)
at writeOrBuffer (/var/www/satbalma/node_modules/gulp-autoprefixer/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:302:5)
at DestroyableTransform.Writable.write (/var/www/satbalma/node_modules/gulp-autoprefixer/node_modules/through2/node_modules/readable-stream/lib/_stream_writable.js:241:11)
at DestroyableTransform.ondata (/var/www/satbalma/node_modules/gulp-sass/node_modules/through2/node_modules/readable-stream/lib/_stream_readable.js:531:20)
at DestroyableTransform.emit (events.js:95:17)

Answer 1

我以前也犯过这个错误。将以下内容添加到package.json中

"es6-promise": "~3.1.2",
"es6-promise-polyfill": "~1.2.0",

在你的gulpfile.js中：

var Promise      = require('es6-promise').Promise;

应该会有帮助

Answer 2

您可以将普通autoprefixer与gulp-postcss一起使用，如下所示：

npm i --save-dev gulp-postcss autoprefixer

gulpfile.js

'use strict';

var gulp = require('gulp'),
    sass = require('gulp-sass'),
    livereload = require('gulp-livereload'),
    postcss = require('gulp-postcss'),
    autoprefixer = require('autoprefixer')({ browsers: ['last 2 versions'] });

gulp.task('sass', function () {
    gulp.src('public_html/style/scss/**/*.scss')
        .pipe(sass().on('error', sass.logError))
        .pipe(postcss([autoprefixer]))
        .pipe(gulp.dest('css'))
        .pipe(livereload());
});

gulp.task('watch', function () {
    livereload.listen(35729);
    gulp.watch('public_html/style/scss/**/*.scss', ['sass']);
});