gulp-usemin TypeError：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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问题描述
我使用gulp-usemin来缩小我在我的应用中使用的javascript文件，出于某种原因，gulp没有看到我的一个文件。我在index.html有这个：
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outdated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>
这是我的gulpfile.js：
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']);
当我运行默认任务时，我收到以下消息：
When I run default task I get this message:
TypeError：路径必须是字符串。收到undefined
TypeError: Path must be a string. Received undefined
如果我删除< script src =scripts / directives / directive2 / directive2.js这个gulp任务运行时没有错误，我很确定这个文件在那里，并且url被正确写入。
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.
请帮助!!
推荐答案
我找到的解决方案是将 {mangle：false} 改为'gulp-uglify'的构造函数，在我的例子中替换
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/'));
});
本文中的更多信息： gulp ngmin + uglify无法正常工作
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