Gulp 错误:您尝试启动Browsersync两次
我正在尝试在我的gulp文件中设置browsersync,但不断出现此错误“[错误]您尝试启动browsersync两次!” 我的gulpfile.js文件如下所示Gulp 错误:您尝试启动Browsersync两次,gulp,browser-sync,gulp-browser-sync,Gulp,Browser Sync,Gulp Browser Sync,我正在尝试在我的gulp文件中设置browsersync,但不断出现此错误“[错误]您尝试启动browsersync两次!” 我的gulpfile.js文件如下所示 var gulp = require('gulp'); var sass = require('gulp-sass'); // Compiles SASS var minifyCss = require('gulp-minify-css'); // Minifys CSS var
var gulp = require('gulp');
var sass = require('gulp-sass'); // Compiles SASS
var minifyCss = require('gulp-minify-css'); // Minifys CSS
var concat = require('gulp-concat'); // Joins multipul files into one
var rename = require('gulp-rename'); // Renames files
var uglify = require('gulp-uglify'); // Minifys JS
var browserSync = require('browser-sync'); // Refreshes browser on SCSS save
var reload = browserSync.reload;
var scss_src = ['developer/sass/**/*.scss']; // Set SCSS location
var js_src = ['developer/js/**/*.js']; // Set JS location
// Browser sync
gulp.task('browser-sync', function() {
var files = [
scss_src
];
// Initialize browsersync
browserSync.init(files, {
proxy : 'localhost:8888',
notify : false
});
});
// SCSS tasks
gulp.task('scss', function() {
gulp.src(scss_src) // Reads all SCSS files
.pipe(sass().on('error', sass.logError)) // Compiles SASS and logs errors
.pipe(minifyCss()) // Minifys the CSS files
.pipe(concat('style.css')) // Merges all the CSS files into one
.pipe(rename({ // Renames the merged CSS file
basename : 'style', // The file name
extname : '.css' // The file extension
}))
.pipe(gulp.dest('./')) // Writes the renamed file to a destination
.pipe(reload({stream:true})) // Reload the browser
});
//JS tasks
gulp.task('js', function() {
gulp.src(js_src)
.pipe(uglify())
.pipe(rename({
basename : 'main',
extname : '.min.js'
}))
.pipe(gulp.dest('./assets/js/'));
});
// Watch task
gulp.task('default', function() {
gulp.watch(scss_src, ['browser-sync']);
gulp.watch(scss_src, ['scss']);
gulp.watch(js_src, ['js']);
});
除browsersync位外,所有任务都会运行,并且一切正常。
任何帮助都会很好 问题是,您已将
浏览器同步
任务与gulp.watch
组合在一起。这将导致运行browser sync
,并且每次scss\u src
中发生更改时都会执行此操作
删除浏览器同步
监视程序,并在启动时仅运行任务一次:
// Watch task
gulp.task('default', ['browser-sync'], function() {
gulp.watch(scss_src, ['scss']);
gulp.watch(js_src, ['js']);
});