Iam使用gulpCLI版本:2.2.1本地版本:4.0.2****节点版本为12.16.3gulpfile.js的MY代码为
'use strict';
var gulp = require('gulp'),
sass = require('gulp-sass'),
browserSync = require('browser-sync'),
del=require('del'),
imagemin = require('gulp-imagemin'),
uglify = require('gulp-uglify'),
usemin = require('gulp-usemin'),
rev = require('gulp-rev'),
cleanCss = require('gulp-clean-css'),
flatmap = require('gulp-flatmap'),
htmlmin = require('gulp-htmlmin');
gulp.task('sass', function () {
return gulp.src('./css/*.scss')
.pipe(sass().on('error', sass.logError))
.pipe(gulp.dest('./css'));
});
gulp.task('sass:watch', function () {
gulp.watch('./css/*.scss', ['sass']);
});
gulp.task('browser-sync', function () {
var files = [
'./*.html',
'./css/*.css',
'./img/*.{png,jpg,gif}',
'./js/*.js'
];
browserSync.init(files, {
server: {
baseDir: "./"
}
});
});
// Default task
gulp.task('default', gulp.series('browser-sync', function() {
gulp.start('sass:watch');
}));
gulp.task('clean', function() {
return del(['dist']);
});
gulp.task('copyfonts', function() {
gulp.src('./node_modules/font-awesome/fonts/**/*.{ttf,woff,eof,svg}*')
.pipe(gulp.dest('./dist/fonts'));
});
gulp.task('imagemin', function() {
return gulp.src('img/*.{png,jpg,gif}')
.pipe(imagemin({ optimizationLevel: 3, progressive: true, interlaced: true }))
.pipe(gulp.dest('dist/img'));
});
gulp.task('usemin', function() {
return gulp.src('./*.html')
.pipe(flatmap(function(stream, file){
return stream
.pipe(usemin({
css: [ rev() ],
html: [ function() { return htmlmin({ collapseWhitespace: true })} ],
js: [ uglify(), rev() ],
inlinejs: [ uglify() ],
inlinecss: [ cleanCss(), 'concat' ]
}))
}))
.pipe(gulp.dest('dist/'));
});
gulp.task('build',gulp.series('clean', function() {
gulp.start('copyfonts','imagemin','usemin');
}));
在命令行上运行gulp build后,我得到的错误是:
[15:38:33] Starting 'build'...
[15:38:33] Starting 'clean'...
[15:38:33] Finished 'clean' after 69 ms
[15:38:33] Starting '<anonymous>'...
[15:38:33] '<anonymous>' errored after 3.57 ms
[15:38:33] TypeError: gulp.start is not a function
at C:\Users\HARIKA\Desktop\bootstrapassign1\Bootstrap4\conFusion\gulpfile.js
:74:10
[15:38:33] 'build' errored after 83 m
我不知道如何解决错误。我甚至改变了一些任务到gulp.series()作为每个版本的gulp版本4。有人能帮助我解决错误吗?提前谢谢你。
2条答案
按热度按时间s5a0g9ez1#
替换这两个任务:
与:
gulp.start
不是gulp 4+的一部分-它是在v3中,虽然即使在那里也没有真正批准使用。2o7dmzc52#
我遇到了同样的问题,也许找到了解决办法:
替换以下内容:
并补充一句:
根据我的发现,您必须将
gulp.series
和gulp.parallel
与gulp +4.x互换使用现在进行第二部分修改:
在此处添加
return
:并像前面所示的那样做出最后一个任务的回答:
希望这对你有帮助!