Javascript 丑陋,无法读取属性';重置';未定义的
我使用webpack2构建我的应用程序,但是当使用uglify js+uglifyjs webpack插件时,我遇到了一些问题:Javascript 丑陋,无法读取属性';重置';未定义的,javascript,webpack,Javascript,Webpack,我使用webpack2构建我的应用程序,但是当使用uglify js+uglifyjs webpack插件时,我遇到了一些问题: ERROR in vendors.js from UglifyJs TypeError: Cannot read property 'reset' of undefined at F:\Github\Program\My-test\Webpack\www2\node_modules\_uglifyjs-webpack-plugin@0.4.3@uglifyjs-web
ERROR in vendors.js from UglifyJs
TypeError: Cannot read property 'reset' of undefined
at F:\Github\Program\My-test\Webpack\www2\node_modules\_uglifyjs-webpack-plugin@0.4.3@uglifyjs-webpack-plugin\dist\index.js:99:22
at F:\Github\Program\My-test\Webpack\www2\node_modules\_uglifyjs-webpack-plugin@0.4.3@uglifyjs-webpack-plugin\dist\index.js:231:9
at Array.forEach (native)
at Compilation.<anonymous> (F:\Github\Program\My-test\Webpack\www2\node_modules\_uglifyjs-webpack-plugin@0.4.3@uglifyjs-webpack-plugin\dist\index.js:54:19)
at Compilation.applyPluginsAsyncSeries (F:\Github\Program\My-test\Webpack\www2\node_modules\_tapable@0.2.6@tapable\lib\Tapable.js:142:13)
at self.applyPluginsAsync.err (F:\Github\Program\My-test\Webpack\www2\node_modules\_webpack@2.5.1@webpack\lib\Compilation.js:635:10)
at Compilation.applyPluginsAsyncSeries (F:\Github\Program\My-test\Webpack\www2\node_modules\_tapable@0.2.6@tapable\lib\Tapable.js:131:46)
at sealPart2 (F:\Github\Program\My-test\Webpack\www2\node_modules\_webpack@2.5.1@webpack\lib\Compilation.js:631:9)
at Compilation.applyPluginsAsyncSeries (F:\Github\Program\My-test\Webpack\www2\node_modules\_tapable@0.2.6@tapable\lib\Tapable.js:131:46)
at Compilation.seal (F:\Github\Program\My-test\Webpack\www2\node_modules\_webpack@2.5.1@webpack\lib\Compilation.js:579:8)
at F:\Github\Program\My-test\Webpack\www2\node_modules\_webpack@2.5.1@webpack\lib\Compiler.js:493:16
at F:\Github\Program\My-test\Webpack\www2\node_modules\_tapable@0.2.6@tapable\lib\Tapable.js:225:11
at _addModuleChain (F:\Github\Program\My-test\Webpack\www2\node_modules\_webpack@2.5.1@webpack\lib\Compilation.js:481:11)
at processModuleDependencies.err (F:\Github\Program\My-test\Webpack\www2\node_modules\_webpack@2.5.1@webpack\lib\Compilation.js:452:13)
at _combinedTickCallback (internal/process/next_tick.js:73:7)
at process._tickCallback (internal/process/next_tick.js:104:9)
“重置”是什么意思?我在任何地方都找不到答案。。。
谢谢 对我有用:
npm install uglifyjs-webpack-plugin --save-dev
plugins: [
new webpack.optimize.UglifyJsPlugin()
]
但这是行不通的:
new UglifyJSPlugin({
compress: true
})
Github也提出了同样的问题,答案是:
目前使用UglifyJS 3会破坏插件。它有一个新的API,因此插件必须相应地更改
编辑2017年8月: 现在uglifyjs网页包插件 安装插件:
npm安装uglifyjs网页包插件——保存dev
,然后在网页包配置中:
var UglifyJSPlugin = require('uglifyjs-webpack-plugin')
...
plugins: [
new UglifyJSPlugin()
]
我这样做只是为了解决这个问题:
npm install --save-dev uglify-js@2
您必须确保您使用的是丑陋2而不是丑陋3。我的配置如下所示:
const webpack = require('webpack');
module.exports = {
...
plugins: [
new webpack.optimize.UglifyJsPlugin()
]
};
2017-07-26 我通过以下方式解决了这个问题:
npm i-D uglifyjs网页包-plugin@1.0.0-beta.2
原因:uglifyjs网页包-plugin@0.4.x是网页使用的版本,不支持uglify js 3。自uglifyjs网页包-plugin@1.0.0-beta版,它开始支持uglify js 3
参考:
它与webpack3+angular4配合使用
npm安装丑陋-js@2.8.27--save dev
将index.js发送到F:\Github\Program\My test\Webpack\wwww2\node\u modules\uglifyjs Webpack plugin\dist\index.jsI,也有同样的问题。作为一种解决方法:安装3.0.0而不是3.0.3,问题将暂时消失……这是Webpack 2和UglifyJS 3的问题。只需将UglifyJS2.8与Webpack2配合使用即可。
const webpack = require('webpack');
module.exports = {
...
plugins: [
new webpack.optimize.UglifyJsPlugin()
]
};