转:
###
先看项目目录结构 :关于项目的修改及改造 再项目完事的时候会发布的
如果你也遇见这个问题的话 这一篇博客应该完全可以解决
问题描述:
building for sit environment...D:EVDownloadadminMPAnode_modulesscript-ext-html-webpack-pluginlibplugin.js:50
compilation.hooks.htmlWebpackPluginAlterAssetTags.tap(PLUGIN, alterAssetTags);
^
TypeError: Cannot read property 'tap' of undefined
at ScriptExtHtmlWebpackPlugin.compilationCallback (D:EVDownloadadminMPAnode_modulesscript-ext-html-webpack-pluginlibplugin.js:50:57)
at SyncHook.eval [as call] (eval at create (D:EVDownloadadminMPAnode_modulestapablelibHookCodeFactory.js:19:10), :11:1)
at SyncHook.lazyCompileHook (D:EVDownloadadminMPAnode_modulestapablelibHook.js:154:20)
at Compiler.newCompilation (D:EVDownloadadminMPAnode_moduleswebpacklibCompiler.js:504:26)
at D:EVDownloadadminMPAnode_moduleswebpacklibCompiler.js:540:29
at AsyncSeriesHook.eval [as callAsync] (eval at create (D:EVDownloadadminMPAnode_modulestapablelibHookCodeFactory.js:33:10), :6:1)
at AsyncSeriesHook.lazyCompileHook (D:EVDownloadadminMPAnode_modulestapablelibHook.js:154:20)
at Compiler.compile (D:EVDownloadadminMPAnode_moduleswebpacklibCompiler.js:535:28)
at D:EVDownloadadminMPAnode_moduleswebpacklibCompiler.js:274:11
at Compiler.readRecords (D:EVDownloadadminMPAnode_moduleswebpacklibCompiler.js:402:11)
at D:EVDownloadadminMPAnode_moduleswebpacklibCompiler.js:271:10
at AsyncSeriesHook.eval [as callAsync] (eval at create (D:EVDownloadadminMPAnode_modulestapablelibHookCodeFactory.js:33:10), :6:1)
at AsyncSeriesHook.lazyCompileHook (D:EVDownloadadminMPAnode_modulestapablelibHook.js:154:20)
at D:EVDownloadadminMPAnode_moduleswebpacklibCompiler.js:268:19
at AsyncSeriesHook.eval [as callAsync] (eval at create (D:EVDownloadadminMPAnode_modulestapablelibHookCodeFactory.js:33:10), :15:1)
at AsyncSeriesHook.lazyCompileHook (D:EVDownloadadminMPAnode_modulestapablelibHook.js:154:20)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! admin@1.0.0 build:sit: `cross-env NODE_ENV=production env_config=sit node build/build.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the admin@1.0.0 build:sit script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:UserslAppDataRoamingnpm-cache_logs2020-11-10T02_45_03_911Z-debug.log
这个问题全网只有两个人写过博客 但是不适合我这个 (我也不知道为啥 )
如果你也有这样的问题可以尝试下:
第一篇博客解决办法发是 webpack 和 webpackServe 及 html-webpack-plugin 版本冲突 这个直接去重写install 个版本就好了
博客链接 : https://blog.csdn.net/qq_31290307/article/details/86158770
第二篇博客解决办法如下 :
set “html-webpack-plugin”: “^4.0.0-alpha” => “4.0.0-alpha”
remove node_modules
remove package-lock.json
npm install
博客链接: https://www.cnblogs.com/ybz94/p/9625864.html
以上两篇博客如果还不能解决你的问题 那你就跟着我走吧! 以下是我的解决思路
第一点 : 检查入口文件 是不是有多余的东西
打印结果如下 :
对比图
在这里我们发现入口文件 多了几个js 分别是 errorLog.js 和 permission.js
所以我们要做的操作是 将多余的js删除
入口函数写法如下
//多入口配置
// 通过glob模块读取views文件夹下的所有对应文件夹下的js后缀文件,如果该文件存在
// 那么就作为入口处理
exports.entries = function() {
var entryFiles = glob.sync(PAGE_PATH + '/*/*.js')
// console.log(entryFiles ,'entryCha')
var map = {}
entryFiles.forEach((filePath) => {
var filename = filePath.substring(filePath.lastIndexOf('/') + 1, filePath.lastIndexOf('.'))
map[filename] = filePath
})
delete map.errorLog ;
delete map.permission ;
console.log(map ,'map')
return map
}
修改完入口文件后 我再次打包发现问题依旧 , 别灰心继续搞 , webpack 打包主要就是入口和出口 接下来我们研究下出口文件函数 我一开始写法如下 :
//多页面输出配置
// 与上面的多页面入口配置相同,读取pages文件夹下的对应的html后缀文件,然后放入数组中
exports.htmlPlugin = function() {
// let entryHtml = path.resolve(__dirname + '../dist/*.html')
let entryHtml = glob.sync(PAGE_PATH + '/*/*.html')
let arr = []
entryHtml.forEach((filePath) => {
let filename = filePath.substring(filePath.lastIndexOf('/') + 1, filePath.lastIndexOf('.'))
let conf = {
// 模板来源
template: filePath,
// 文件名称
filename: filename + '.html',
// 页面模板需要加对应的js脚本,如果不加这行则每个页面都会引入所有的js脚本
chunks: ['manifest', 'vendor', filename],
inject: true,
templateParameters: {
BASE_URL: config.build.assetsPublicPath + config.build.assetsSubDirectory,
},
}
if (process.env.NODE_ENV === 'production') {
conf = merge(conf, {
minify: {
removeComments: true,
collapseWhitespace: true,
removeAttributeQuotes: true
},
chunksSortMode: 'dependency'
})
}
arr.push(new HtmlWebpackPlugin(conf))
})
console.log(arr , 'arr')
return arr
}
我们看下打印的数据对不对
[
HtmlWebpackPlugin {
options: {
template: 'D:/EVDownload/adminMPA/src/views/index/index.html',
templateContent: false,
templateParameters: [Object],
filename: 'index.html',
hash: false,
inject: true,
compile: true,
favicon: false,
minify: false,
cache: true,
showErrors: true,
chunks: [Array],
excludeChunks: [],
chunksSortMode: 'auto',
meta: {},
title: 'Webpack App',
xhtml: false
},
childCompilerHash: undefined,
childCompilationOutputName: undefined,
assetJson: undefined,
hash: undefined,
version: 4
},
HtmlWebpackPlugin {
options: {
template: 'D:/EVDownload/adminMPA/src/views/page/page.html',
templateContent: false,
templateParameters: [Object],
filename: 'page.html',
hash: false,
inject: true,
compile: true,
favicon: false,
minify: false,
cache: true,
showErrors: true,
chunks: [Array],
excludeChunks: [],
chunksSortMode: 'auto',
meta: {},
title: 'Webpack App',
xhtml: false
},
childCompilerHash: undefined,
childCompilationOutputName: undefined,
assetJson: undefined,
hash: undefined,
version: 4
},
HtmlWebpackPlugin {
options: {
template: 'D:/EVDownload/adminMPA/src/views/pagetwo/pagetwo.html',
templateContent: false,
templateParameters: [Object],
filename: 'pagetwo.html',
hash: false,
inject: true,
compile: true,
favicon: false,
minify: false,
cache: true,
showErrors: true,
chunks: [Array],
excludeChunks: [],
chunksSortMode: 'auto',
meta: {},
title: 'Webpack App',
xhtml: false
},
childCompilerHash: undefined,
childCompilationOutputName: undefined,
assetJson: undefined,
hash: undefined,
version: 4
}
]
仔细瞅了一下 , 也没有大问题 ,但是当我打开config文件时 发现我在这里竟然也设置了build路径 【奔溃】,那么再重新修改下打包路径吧 。
第一步在 webpack.dev.conf.js 里修改
plugins: [
new webpack.DefinePlugin({
'process.env': require('../config/dev.env')
}),
new webpack.HotModuleReplacementPlugin(),
/* 在这开始插入代码*********************************************************/
new htmlWebpackPlugin({
filename : 'index.html',//输出的html路径
template : 'index.html', //html模板路径
//inject : 'head', //js文件在head中,若为body则在body中
inject : true,
title : 'index',
chunks : ['app'], //打包时只打包main和a的js文件,见entry,注意使用chunks时模板index.html文件里面不允许有script标签,即使注释掉也会报错
templateParameters: {
BASE_URL: config.dev.assetsPublicPath + config.dev.assetsSubDirectory
}
}),
new htmlWebpackPlugin({
filename : 'page.html',//输出的html路径
template : 'page.html', //html模板路径
//inject : 'head', //js文件在head中,若为body则在body中
inject : true,
title : 'page',
chunks : ['page'], //打包时只打包main和a的js文件,见entry,注意使用chunks时模板index.html文件里面不允许有script标签,即使注释掉也会报错
templateParameters: {
BASE_URL: config.dev.assetsPublicPath + config.dev.assetsSubDirectory
}
}),
new htmlWebpackPlugin({
filename : 'pagetwo.html',//输出的html路径
template : 'pagetwo.html', //html模板路径
//inject : 'head', //js文件在head中,若为body则在body中
inject : true,
title : 'pagetwo',
chunks : ['pagetwo'], //打包时只打包main和a的js文件,见entry,注意使用chunks时模板index.html文件里面不允许有script标签,即使注释掉也会报错
templateParameters: {
BASE_URL: config.dev.assetsPublicPath + config.dev.assetsSubDirectory
}
}),
/* 在这结束插入代码*********************************************************/
new webpack.NamedModulesPlugin(), // HMR shows correct file names in console on update.
new webpack.NoEmitOnErrorsPlugin(),
new CopyWebpackPlugin([
{
from: path.resolve(__dirname, '../static'),
to: config.dev.assetsSubDirectory,
ignore: ['.*']
}
])
]
})
因为我这有三个动态项目 目前插如三个 new htmlWebpackPlugin
在webpack.prod.conf.js 里修改如下
plugins: [
// http://vuejs.github.io/vue-loader/en/workflow/production.html
new webpack.DefinePlugin({
'process.env': env
}),
// extract css into its own file
new MiniCssExtractPlugin({
filename: utils.assetsPath('css/[name].[contenthash:8].css'),
chunkFilename: utils.assetsPath('css/[name].[contenthash:8].css')
}),
/* 开始插入代码 ************************************************/
new HtmlWebpackPlugin({
filename: config.build.app,
template: 'index.html',
inject: true,
favicon: resolve('favicon.ico'),
title: 'index',
templateParameters: {
BASE_URL: config.build.assetsPublicPath + config.build.assetsSubDirectory
},
chunks: ['manifest', 'vendor', 'app'],
minify: {
removeComments: true,
collapseWhitespace: true,
removeAttributeQuotes: true
// more options:
// https://github.com/kangax/html-minifier#options-quick-reference
}
// default sort mode uses toposort which cannot handle cyclic deps
// in certain cases, and in webpack 4, chunk order in HTML doesn't
// matter anyway
}),
new HtmlWebpackPlugin({
filename: config.build.page,
template: 'page.html',
inject: true,
favicon: resolve('favicon.ico'),
title: 'page',
templateParameters: {
BASE_URL: config.build.assetsPublicPath + config.build.assetsSubDirectory
},
chunks: ['manifest', 'vendor', 'page'],
minify: {
removeComments: true,
collapseWhitespace: true,
removeAttributeQuotes: true
// more options:
// https://github.com/kangax/html-minifier#options-quick-reference
}
// default sort mode uses toposort which cannot handle cyclic deps
// in certain cases, and in webpack 4, chunk order in HTML doesn't
// matter anyway
}),
new HtmlWebpackPlugin({
filename: config.build.pagetwo,
template: 'pagetwo.html',
inject: true,
favicon: resolve('favicon.ico'),
title: 'pagetwo',
templateParameters: {
BASE_URL: config.build.assetsPublicPath + config.build.assetsSubDirectory
},
chunks: ['manifest', 'vendor', 'pagetwo'],
minify: {
removeComments: true,
collapseWhitespace: true,
removeAttributeQuotes: true
// more options:
// https://github.com/kangax/html-minifier#options-quick-reference
}
// default sort mode uses toposort which cannot handle cyclic deps
// in certain cases, and in webpack 4, chunk order in HTML doesn't
// matter anyway
}),
/* 结束插入代码 ************************************************/
new ScriptExtHtmlWebpackPlugin({
//`runtime` must same as runtimeChunk name. default is `runtime`
inline: /runtime..*.js$/
}),
// keep chunk.id stable when chunk has no name
new webpack.NamedChunksPlugin(chunk => {
if (chunk.name) {
return chunk.name
}
const modules = Array.from(chunk.modulesIterable)
if (modules.length > 1) {
const hash = require('hash-sum')
const joinedHash = hash(modules.map(m => m.id).join('_'))
let len = nameLength
while (seen.has(joinedHash.substr(0, len))) len++
seen.add(joinedHash.substr(0, len))
return `chunk-${joinedHash.substr(0, len)}`
} else {
return modules[0].id
}
}),
// keep module.id stable when vender modules does not change
new webpack.HashedModuleIdsPlugin(),
// copy custom static assets
new CopyWebpackPlugin([
{
from: path.resolve(__dirname, '../static'),
to: config.build.assetsSubDirectory,
ignore: ['.*']
}
])
] ,
在这里也插入代码 (注释里有标记哦!!!!!!!!!!!)
好了 现在在运行下吧 看看效果咋样呢?
打包完成 成功啦 !
小记
这个bug 说白了 问题的根点在出口文件这 , 为什么会在这呢 ? 相关文档有说 是因为 webpack 新增 hook 属性 造成的看的我迷迷糊糊的 没明白 大致就是说你的出口文件应该怎么设置啥的。 哎!脑壳疼
为什么出口文件不能放在公共的utils 里呢 ? 目前这样打包问题虽然解决但是 每次的修改过于复杂 (脑壳疼), 如果有大神的话感谢指导下哈!!!后期我会把这个项目开源 详细请到个人中心查看
再此特别鸣谢 @璠哥 (一个温文尔雅的漂亮妹子) @劲琪 (一个阳光帅气的小帅哥)
转:
手机扫一扫
移动阅读更方便
你可能感兴趣的文章