gulp-usemin 类型错误:路径必须是字符串.收到未定义 [英] gulp-usemin TypeError: Path must be a string. Received undefined

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本文介绍了gulp-usemin 类型错误:路径必须是字符串.收到未定义的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我正在使用 gulp-usemin 来缩小我在我的应用程序中使用的 javascript 文件，由于某种原因，gulp 没有看到我的文件之一.我的 index.html 中有这个:

<!--[如果是 IE 8]><p class="browsehappy">您使用的是<strong>过时</strong>浏览器.请<a href="http://browsehappy.com/">升级您的浏览器</a>以改善您的体验.</p><![endif]--><div><ui-view></ui-view>

<div class="footer"><div class="容器"><!-- 待办事项:在此处添加 fotter -->

<!-- build:js(.) scripts/scripts.js--><script src="bower_components/jquery/dist/jquery.min.js" type="text/javascript"></script><script src="bower_components/bootstrap/dist/js/bootstrap.min.js" type="text/javascript"></script><script src="bower_components/angular/angular.min.js" type="text/javascript"></script><script src="bower_components/angular-ui-router/release/angular-ui-router.min.js" type="text/javascript"></script><script src="bower_components/angular-bootstrap/ui-bootstrap-tpls-0.14.3.min.js" type="text/javascript"></script><!-- endbuild --><!-- build:js({.tmp,app}) --><script src="scripts/app.js"></script><script src="scripts/routes.js" type="text/javascript"></script><script src="scripts/controllers/controller1.js" type="text/javascript"></script><script src="scripts/controllers/controller2.js" type="text/javascript"></script><script src="scripts/services/service1.js" type="text/javascript"></script><script src="scripts/services/service2.js" type="text/javascript"></script><script src="scripts/directives/directive1/directive1.js" type="text/javascript"></script><script src="scripts/directives/directive2/directive2.js" type="text/javascript"></script><!-- endbuild -->

这是我的 gulpfile.js:

//2015-12-16 使用 generator-angular 0.15.1 生成'使用严格';var gulp = require('gulp'),usemin = require('gulp-usemin'),wrap = require('gulp-wrap'),connect = require('gulp-connect'),watch = require('gulp-watch'),minifyCss = require('gulp-minify-css'),minifyJs = require('gulp-uglify'),concat = require('gulp-concat'),少 = 要求('少喝')，rename = require('gulp-rename'),minifyHTML = require('gulp-minify-html'),zip = require('gulp-zip');变量路径 = {脚本:'app/scripts/**/*.*',样式:'app/styles/**/*.less',custom_css: 'app/styles/**/*.css',custom_fonts: 'fonts/**/*.{ttf,woff,eof,svg}',图像:'app/images/**/*.*',模板:'app/views/**/*.html',索引:'app/index.html',bower_fonts: 'bower_components/**/*.{ttf,woff,eof,svg}',customstyle:'bower_components/bootstrap/dist/css/bootstrap.min.css'};var logerror = function(e){ console.log(e);};/*** 从索引处理凉亭组件*/gulp.task('usemin', function() {返回 gulp.src(paths.index).pipe(usemin({js: [minifyJs().on('error', function(e){ console.log(e); }), 'concat'],css: [minifyCss({keepSpecialComments: 0}), 'concat']})).pipe(gulp.dest('dist/'));});gulp.task('zip', function () {return gulp.src(['dist/**/*.*', '!dist/dist.zip', '!dist/index.html']).pipe(zip('dist.zip')).pipe(gulp.dest('dist/'));});/*** 复制资产*/gulp.task('build-assets', ['copy-bower_fonts', 'custom-less', 'custom-css']);gulp.task('copy-bower_fonts', function() {返回 gulp.src(paths.bower_fonts).pipe(重命名({目录名:'/字体'})).pipe(gulp.dest('dist/'));});gulp.task('custom-less', function() {返回 gulp.src(paths.styles).pipe(less()).pipe(gulp.dest('dist/styles'));});gulp.task('custom-css', function() {返回 gulp.src(paths.custom_css).pipe(minifyCss()).pipe(concat('custom.min.css')).pipe(gulp.dest('dist/styles'));});gulp.task('copy-templates', function() {返回 gulp.src(paths.templates).pipe(minifyHTML().on('error',logerror)).pipe(gulp.dest('dist/views'));});/*** 观看自定义文件*/gulp.task('watch', function() {gulp.watch([paths.index], ['usemin']);gulp.watch([paths.customstyle], ['usemin']);gulp.watch([ 'dist/**/*.*', '!dist/dist.zip', '!dist/index.html'], ['zip']);});/***实时重载服务器*/gulp.task('webserver', function() {连接服务器({根:'dist'，实时加载:真实，端口:8888});});gulp.task('livereload', function() {gulp.src(['dist/**/*.*']).pipe(watch()).pipe(connect.reload());});/*** 吞咽任务*/gulp.task('build', ['build-assets','copy-templates', 'usemin']);gulp.task('default', ['build', 'zip']);gulp.task('run', ['build', 'webserver', 'livereload', 'watch']);

当我运行默认任务时，我收到此消息:

<块引用>

类型错误:路径必须是字符串.收到未定义

如果我从索引中删除 <script src="scripts/directives/directive2/directive2.js" type="text/javascript"></script> 运行 gulp 任务没有错误，我很确定该文件在那里并且 url 写入正确.

请帮忙！！

解决方案

我发现的解决方案是将 {mangle:false} 传递给 'gulp-uglify' 构造函数，在我的情况下替换 

gulp.task('usemin', function() {返回 gulp.src(paths.index).pipe(usemin({js: [minifyJs({mangle:false}).on('error', function(e){ console.log(e); }), 'concat'],css: [minifyCss({keepSpecialComments: 0}), 'concat']})).pipe(gulp.dest('dist/'));});

这篇文章中的更多信息:Gulp ngmin + uglify 无法正常工作

I'm using gulp-usemin for minify the javascript files I use in my app, for some reason gulp is not seeing one of my files. I have this in my index.html:

<body ng-app="App">
    <!--[if lte IE 8]>
      <p class="browsehappy">You are using an <strong>outdated</strong> browser. Please <a href="http://browsehappy.com/">upgrade your browser</a> to improve your experience.</p>
    <![endif]-->

    <div>
        <ui-view></ui-view>
    </div>

    <div class="footer">
        <div class="container">
            <!-- TODO: add fotter here -->
        </div>
    </div>

    <!-- build:js(.) scripts/scripts.js-->
    <script src="bower_components/jquery/dist/jquery.min.js" type="text/javascript"></script>
    <script src="bower_components/bootstrap/dist/js/bootstrap.min.js" type="text/javascript"></script>
    <script src="bower_components/angular/angular.min.js" type="text/javascript"></script>
    <script src="bower_components/angular-ui-router/release/angular-ui-router.min.js" type="text/javascript"></script>
    <script src="bower_components/angular-bootstrap/ui-bootstrap-tpls-0.14.3.min.js" type="text/javascript"></script>
    <!-- endbuild -->

    <!-- build:js({.tmp,app}) -->
    <script src="scripts/app.js"></script>
    <script src="scripts/routes.js" type="text/javascript"></script>
    <script src="scripts/controllers/controller1.js" type="text/javascript"></script>        
    <script src="scripts/controllers/controller2.js" type="text/javascript"></script>
    <script src="scripts/services/service1.js" type="text/javascript"></script>
    <script src="scripts/services/service2.js" type="text/javascript"></script>
    <script src="scripts/directives/directive1/directive1.js" type="text/javascript"></script>
    <script src="scripts/directives/directive2/directive2.js" type="text/javascript"></script>
    <!-- endbuild -->
</body>

And this is my gulpfile.js:

// Generated on 2015-12-16 using generator-angular 0.15.1
'use strict';

var gulp = require('gulp'),
    usemin = require('gulp-usemin'),
    wrap = require('gulp-wrap'),
    connect = require('gulp-connect'),
    watch = require('gulp-watch'),
    minifyCss = require('gulp-minify-css'),
    minifyJs = require('gulp-uglify'),
    concat = require('gulp-concat'),
    less = require('gulp-less'),
    rename = require('gulp-rename'),
    minifyHTML = require('gulp-minify-html'),
    zip = require('gulp-zip');

var paths = {
    scripts: 'app/scripts/**/*.*',
    styles: 'app/styles/**/*.less',
    custom_css: 'app/styles/**/*.css',
    custom_fonts: 'fonts/**/*.{ttf,woff,eof,svg}',
    images: 'app/images/**/*.*',
    templates: 'app/views/**/*.html',
    index: 'app/index.html',
    bower_fonts: 'bower_components/**/*.{ttf,woff,eof,svg}',
    customstyle:'bower_components/bootstrap/dist/css/bootstrap.min.css'
};

var logerror = function(e){ console.log(e); };

/**
 * Handle bower components from index
 */
gulp.task('usemin', function() {
    return gulp.src(paths.index)
        .pipe(usemin({
            js: [minifyJs().on('error', function(e){ console.log(e); }),         'concat'],
            css: [minifyCss({keepSpecialComments: 0}), 'concat']
        }))
        .pipe(gulp.dest('dist/'));
});

gulp.task('zip', function () {
    return gulp.src(['dist/**/*.*', '!dist/dist.zip', '!dist/index.html'])
        .pipe(zip('dist.zip'))
        .pipe(gulp.dest('dist/'));
});

/**
 * Copy assets
 */
gulp.task('build-assets', ['copy-bower_fonts', 'custom-less', 'custom-    css']);

gulp.task('copy-bower_fonts', function() {
    return gulp.src(paths.bower_fonts)
        .pipe(rename({
            dirname: '/fonts'
        }))
        .pipe(gulp.dest('dist/'));
});

gulp.task('custom-less', function() {
    return gulp.src(paths.styles)
        .pipe(less())
        .pipe(gulp.dest('dist/styles'));
});

gulp.task('custom-css', function() {
    return gulp.src(paths.custom_css)
        .pipe(minifyCss())
        .pipe(concat('custom.min.css'))
        .pipe(gulp.dest('dist/styles'));
});

gulp.task('copy-templates', function() {
    return gulp.src(paths.templates)
        .pipe(minifyHTML().on('error',logerror))
        .pipe(gulp.dest('dist/views'));
});

/**
 * Watch custom files
 */
gulp.task('watch', function() {
    gulp.watch([paths.index], ['usemin']);
    gulp.watch([paths.customstyle], ['usemin']);
    gulp.watch([ 'dist/**/*.*', '!dist/dist.zip', '!dist/index.html'], ['zip']);
});

/**
 * Live reload server
 */
gulp.task('webserver', function() {
    connect.server({
        root: 'dist',
        livereload: true,
        port: 8888
    });
});

gulp.task('livereload', function() {
    gulp.src(['dist/**/*.*'])
        .pipe(watch())
        .pipe(connect.reload());
});

/**
 * Gulp tasks
 */
gulp.task('build', ['build-assets','copy-templates', 'usemin']);
gulp.task('default', ['build', 'zip']);
gulp.task('run', ['build', 'webserver', 'livereload', 'watch']);

When I run default task I get this message:

TypeError: Path must be a string. Received undefined

If I remove <script src="scripts/directives/directive2/directive2.js" type="text/javascript"></script> from the index the gulp task run without errors and I'm pretty sure the file is there and url is written correctly.

Please help!!

解决方案

The solution I found is passing {mangle:false} to 'gulp-uglify' constructor, in my case replace 

gulp.task('usemin', function() {
    return gulp.src(paths.index)
        .pipe(usemin({
            js: [minifyJs({mangle:false}).on('error', function(e){ console.log(e); }), 'concat'],
            css: [minifyCss({keepSpecialComments: 0}), 'concat']
        }))
        .pipe(gulp.dest('dist/'));
});

More information in this post: Gulp ngmin + uglify not working properly

这篇关于gulp-usemin 类型错误:路径必须是字符串.收到未定义的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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