gulp默认运行的错误

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首先是结构目录

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运行gulp clean时成功，运行gulp时除了成功的状态外，会分别报以下的错误：

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成功

错误1：Error: ENOENT: no such file or directory, open 'D:\webapp\dist\styles\main.css'

错误2：Error: ENOENT: no such file or directory, stat 'D:\webapp\dist\scripts\main.js'at Error (native)

错误3：Error: EEXIST: file already exists, mkdir 'D:\webapp\dist\styles'at Error (native)

错误4：Error: ENOENT: no such file or directory, stat 'D:\webapp\dist\scripts\main.min.js'at Error (native)

错误5：Error: ENOENT: no such file or directory, open 'D:\webapp\dist\images\2.jpg'at Error (native)

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附gulpfile.js代码

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var gulp    = require('gulp'),
    htmlhint = require('gulp-htmlhint'),       
    htmlmin  = require('gulp-htmlmin'),
    imagemin = require('gulp-imagemin'),   
    sass = require('gulp-sass'),        
    minifycss = require('gulp-minify-css'),   
    jshint = require('gulp-jshint'),          
    uglify  = require('gulp-uglify'),        
    rename = require('gulp-rename'),         
    concat  = require('gulp-concat'),          
    clean = require('gulp-clean'),          
    tinylr = require('tiny-lr'),          
    server = tinylr(),
    port = 35729,
    livereload = require('gulp-livereload'); 

// HTML处理
gulp.task('html', function() {
    var htmlSrc = './src/*.html',
        htmlDst = './dist/';

    gulp.src(htmlSrc)
        .pipe(htmlhint())
        .pipe(htmlmin())
        //.pipe(rename({ suffix: '.min' }))
        .pipe(livereload(server))
        .pipe(gulp.dest(htmlDst))
});

// 样式处理
gulp.task('css', function () {
    var cssSrc = './src/styles/*.scss',
        cssDst = './dist/styles';

    gulp.src(cssSrc)
        .pipe(sass())
        .pipe(gulp.dest(cssDst))
        .pipe(rename({ suffix: '.min' }))
        .pipe(minifycss())
        .pipe(livereload(server))
        .pipe(gulp.dest(cssDst));
});

// 图片处理
gulp.task('images', function(){
    var imgSrc = './src/images/**/*.{gif,jpeg,jpg,png}',
        imgDst = './dist/images/';
    gulp.src(imgSrc)
        .pipe(imagemin())
        .pipe(livereload(server))
        .pipe(gulp.dest(imgDst));
})

// js处理
gulp.task('js', function () {
    var jsSrc = './src/scripts/*.js',
        jsDst ='./dist/scripts';

    gulp.src(jsSrc)
        .pipe(jshint())
        .pipe(jshint.reporter('default'))
        .pipe(concat('main.js'))
        .pipe(gulp.dest(jsDst))
        .pipe(rename({ suffix: '.min' }))
        .pipe(uglify())
        .pipe(livereload(server))
        .pipe(gulp.dest(jsDst));
});

// 清空图片、样式、js
gulp.task('clean', function() {
    gulp.src(['./dist/styles', './dist/scripts', './dist/images'], {read: false})
        .pipe(clean());
});

// 默认任务 清空图片、样式、js并重建 运行语句 gulp
gulp.task('default', ['clean'], function(){
    gulp.start('html','css','images','js');
});

// 监听任务 运行语句 gulp watch
gulp.task('watch',function(){

    server.listen(port, function(err){
        if (err) {
            return console.log(err);
        }

        // 监听html
        gulp.watch('./src/*.html', function(event){
            gulp.run('html');
        })

        // 监听css
        gulp.watch('./src/styles/*.scss', function(){
            gulp.run('css');
        });

        // 监听images
        gulp.watch('./src/images/**/*', function(){
            gulp.run('images');
        });

        // 监听js
        gulp.watch('./src/scripts/*.js', function(){
            gulp.run('js');
        });

    });
});

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这个东西没多少技术含量，多查查细节,cssDst = './dist/styles';jsDst ='./dist/scripts';后面的反斜杠呢，还有js任务里你的concat后的dest和uglify后的dest都是相同的路径，你想要的是什么呢？

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自己解决了！在每个任务流的开始加一个return 关键字