Angular AOT - UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: #): TypeError: Cannot read property 'request' of undefined
Angular AOT - UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: #): TypeError: Cannot read property 'request' of undefined
我正在使用 @ngtools/webpack 作为我的 Angular CLI，用于将 AOT 编译添加到我的 Angular 5 应用程序。对任何人来说都不足为奇，这对我来说已经 。
我已经让 AOT 在 3 个环境中工作，本地主机、开发和暂存。当然，昨天部署到生产环境时，我发现我的 Webpack 构建崩溃了。
虽然我确定问题的根源是 @ngtools/webpack.AngularCompilerPlugin.
，但我无法获得有意义的错误消息
我的错误信息是几百条：
UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: #): TypeError: Cannot read property 'request' of undefined
在 Webpack 的 AOT Plugin 步骤发出数百个此类 UnhandledPromiseRejectionWarnings 之后，它继续构建 node_module 代码，然后未能创建 dist 输出：
> tsl-frontend@0.1.0 build-production /app
> webpack --mode production -p --progress --colors --env.env production
env configuration production
***AOT Compilation***
WebpackDelPlugin::Successfully deleted /app/dist/*.* assets.
[91m 0% compiling[0m[91m[0m[91m 10% building modules 0/1 modules 1 active multi babel-polyfill ./src/main.ts[0m[91m 10% building modules 1/1 modules 0 active[0m[91m(node:15) DeprecationWarning: Tapable.plugin is deprecated. Use new API on `.hooks` instead
[0m[91m(node:15) DeprecationWarning: Tapable.apply is deprecated. Call apply on the plugin directly instead
[0m[91m(node:15) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): TypeError: Cannot read property 'request' of undefined
(node:15) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 2): TypeError: Cannot read property 'request' of undefined
[0m[91m(node:15) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 3): TypeError: Cannot read property 'request' of undefined
(node:15) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 4): TypeError: Cannot read property 'request' of undefined
(node:15) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 5): TypeError: Cannot read property 'request' of undefined
///----removed for brevity
(node:15) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 202): TypeError: Cannot read property 'request' of undefined
[0m[91m 10% building modules 1/2 modules 1 active ?ode_modules/babel-polyfill/lib/index.js
//removed for brevity
70% building modules 2087/2087 modules 0 active[0mRemoving intermediate container b082f2548cbe
---> 098c4df274ad
Step 14/17 : RUN cd /app && cp -a dist/* /usr/share/nginx/html
---> Running in e179a7482da7
[91mcp: cannot stat 'dist/*': No such file or directory
[0mRemoving intermediate container e179a7482da7
Service 'frontendproduction' failed to build: The command '/bin/sh -c cd /app && cp -a dist/* /usr/share/nginx/html' returned a non-zero code: 1
我研究了一段时间，找到了几个我认为可能相关的网络链接，尝试了很多修复方法，尤其是 this article 但没有成功。这是我认为可能相关但没有帮助的其他几篇文章：
- TypeError: Cannot read property 'request' of undefined with angular-cli
- https://github.com/angular/angular-cli/issues/1922
这是我的 Webpack.config.js:
var merge = require('webpack-merge'),
htmlPlugin = require('html-webpack-plugin'),
revPlugin = require('webpack-rev-replace-plugin'),
config = require('./build.config.json'),
path = require('path'),
extendedDefinePlugin = require('extended-define-webpack-plugin'),
webpackDelPlugin = require('webpack-del-plugin'),
openBrowserPlugin = require('open-browser-webpack-plugin'),
uglifyJSPlugin = require('uglifyjs-webpack-plugin');
const AotPlugin = require('@ngtools/webpack').AngularCompilerPlugin;
//import {AngularCompilerPlugin} from '@ngtools/webpack';
//Note : in package.json the last variable (dev) is the param delivered to this function { env: 'dev' }.
module.exports = function (env) {
console.log('env configuration', env.env);
/**
* configPerTarget is merged with build.config.json based on the env passed
* currently no configuration properties, this configPerTarget not in use per se, keeping just in case - Ogden 4-12-2018
*/
var configPerTarget = {
localhost: {
},
development: {
},
test: {
},
staging: {
},
production: {
},
maintenance: {
}
};
// Note : '__dirname' is the root file path.
const ROOT_DIR = path.resolve(__dirname);
const DIST_DIR = path.join(ROOT_DIR, config.dist);
// If no env make it dev
if (!env) {
env = {};
env.env = config.envDevelopment;
}
//merge config with env specific configPerTarget
config = merge(config, configPerTarget[env.env]);
// this takes path variables from build.config.json and builds it with given env
var appConfigPath = config.envs + config.appConfig.replace('{env}', env.env);
var webPackConfig = {
entry: ['babel-polyfill', config.src + config.entry],//main.ts
output: {
path: path.resolve(__dirname, config.dist),
filename: config.buildjs,
sourceMapFilename: config.buildjsmap,
chunkFilename: config.buildchunk
},
module: {
rules: [
{ test: /\.html$/, use: 'raw-loader' },
{ test: /\.css$/, use: 'raw-loader' },
{
test: /\.scss$/,
exclude: /node_modules/,
loaders: ['style-loader', 'css-loader', 'sass-loader'],
},
//For images.
{ test: /\.(jpe?g|png|gif|svg)$/i, loader: 'file-loader?name=app/assets/images/[name].[ext]' },
{
test: /\.(ttf|eot|woff|woff2)$/,
loader: 'file-loader'
},
]
},
//https://webpack.js.org/configuration/devtool/
//Webpack 4.4 has its own mode development and production, which are environment modes
//do Webpack 4.4 is handling the devtool sourcemap config where in the past it was not
//looks like we no longer have to worry about setting devtool
//https://github.com/damianobarbati/yarsk/blob/50b6f352a13ec2e778fa8b252f915550b6132964/config/webpack.config.js#L110
//devtool: config.devtool,
resolve: {
modules: [__dirname + path.sep + 'src', __dirname, 'node_modules'],
extensions: ['.js', '.ts', '.scss', '.css', '.html']
},
plugins: [
new htmlPlugin({
template: config.src + config.index
}),
new revPlugin({
cwd: config.src,
files: '**/*.html',
outputPageName: function (filename) {
return filename;
},
modifyReved: function (filename) {
return filename.replace(/(\/style\/|\/script\/)/, '')
}
}),
//Makes AppConfig variable available in the application code.
new extendedDefinePlugin({
AppConfig: require(appConfigPath)
}),
//Usefull if you need remove some files or folders before compilation processes.
//currently not used (no dist file).
new webpackDelPlugin({ match: path.join(DIST_DIR, '*.*') }),
//opens browser after compilation.
new openBrowserPlugin({ url: 'http://localhost:8080' })
],
optimization: {
minimizer: [
new uglifyJSPlugin({
uglifyOptions: {
output: {
comments: false,
ascii_only: true //must be on to fix this issue https://github.com/angular/angular/issues/19475
}
}
})
]
}
}
if (env.env === config.envLocalhost) {
webPackConfig.module.rules.push(
{
test: /\.ts$/,
loaders: [
'ts-loader',
'angular2-template-loader',
'angular-router-loader']
}
);
return webPackConfig;
}
//********************************AOT Compilation*************************************** */
//-- AOT Compilation from this point on, currently AOT runs in all environments
//this seems helpful because you get to see AOT build errors before pushing to build server
//the downside might be more mangled code and harder to debug source code...
console.log('***AOT Compilation***');
webPackConfig.module.rules.push(
{
test: /(?:\.ngfactory\.js|\.ngstyle\.js|\.ts)$/,
loaders: ['@ngtools/webpack']
}
);
webPackConfig.plugins.push(new AotPlugin({
tsConfigPath: './tsconfig-aot.json',
entryModule: path.join(config.src, 'app/app.module#AppModule'),
sourceMap: true
}));
return webPackConfig;
}
这是我的 package.json:
{
"name": "tsl-frontend",
"version": "0.1.0",
"scripts": {
"test": "karma start",
"build-localhost": "webpack --mode development --progress --colors --env.env localhost",
"build-development": "webpack --mode development --progress --colors --env.env development",
"build-staging": "webpack --mode production --progress --colors --env.env staging",
"build-production": "webpack --mode production -p --progress --colors --env.env production",
"build-maintenance": "webpack --mode production -p --progress --colors --env.env maintenance",
"serve": "webpack-dev-server --mode development --inline --progress --colors --env.env development",
"serve-production": "webpack-dev-server --mode production --inline --progress --colors --env.env development",
"serve-localhost": "webpack-dev-server --mode development --inline --progress --colors --env.env localhost",
"serve-host": "webpack-dev-server --host 0.0.0.0 --port 80 --disable-host-check --mode development --inline --progress --colors --env.env localhost",
"serve-maintenance": "webpack-dev-server --mode development --inline --progress --colors --env.env maintenance"
},
"dependencies": {
"@angular/animations": "^5.2.11",
"@angular/cdk": "^2.0.0-beta.12",
"@angular/common": "^5.2.11",
"@angular/compiler": "^5.2.11",
"@angular/compiler-cli": "^5.2.11",
"@angular/core": "^5.2.11",
"@angular/forms": "^5.2.11",
"@angular/http": "^5.2.11",
"@angular/material": "^2.0.0-beta.12",
"@angular/platform-browser": "^5.2.11",
"@angular/platform-browser-dynamic": "^5.2.11",
"@angular/platform-server": "^5.2.11",
"@angular/router": "^5.2.11",
"@ng-bootstrap/ng-bootstrap": "^1.1.2",
"@types/file-saver": "^1.3.0",
"angular2-jwt": "^0.2.3",
"angular2-text-mask": "^8.0.5",
"bootstrap": "^4.1.2",
"chart.js": "^2.7.2",
"devextreme": "^18.1.4",
"devextreme-angular": "^18.1.4",
"file-saver": "^1.3.8",
"font-awesome": "^4.7.0",
"moment": "2.18.1",
"moment-timezone": "0.5.13",
"ng2-bootstrap-modal": "1.0.1",
"ng2-charts": "^1.6.0",
"ng2-drag-drop": "^2.9.2",
"ng2-page-scroll": "^4.0.0-beta.12",
"ng2-toastr": "^4.1.2",
"popper.js": "^1.14.3",
"reflect-metadata": "0.1.8",
"rxjs": "5.5.5",
"systemjs": "0.19.40",
"typescript": "^2.9.2",
"xlsx": "^0.11.19",
"zone.js": "^0.8.26"
},
"devDependencies": {
"@ngtools/webpack": "^6.0.8",
"@servicestack/client": "^1.0.14",
"@types/file-saver": "^1.3.0",
"@types/jasmine": "^2.8.8",
"@types/node": "7.0.7",
"angular-router-loader": "^0.6.0",
"angular2-router-loader": "^0.3.5",
"angular2-template-loader": "^0.6.2",
"babel-polyfill": "^6.26.0",
"css-loader": "^0.28.11",
"extended-define-webpack-plugin": "^0.1.3",
"extract-text-webpack-plugin": "^3.0.2",
"file-loader": "^1.1.11",
"file-saver": "^1.3.8",
"html-webpack-plugin": "^4.0.0-alpha",
"jasmine": "^2.99.0",
"karma": "^1.7.0",
"karma-sourcemap-loader": "^0.3.7",
"karma-webpack": "^2.0.13",
"ng-intercom": "^1.0.0-beta.5-2",
"ng2-tree": "^2.0.0-rc.11",
"node-sass": "^4.9.2",
"open-browser-webpack-plugin": "0.0.5",
"path": "^0.12.7",
"raw-loader": "^0.5.1",
"sass-loader": "^6.0.7",
"style-loader": "^0.13.2",
"text-mask-addons": "^3.7.2",
"toposort": "^1.0.7",
"ts-loader": "^4.4.2",
"webpack": "^4.16.1",
"webpack-cli": "^2.1.5",
"webpack-del-plugin": "0.0.1",
"webpack-dev-server": "^3.1.4",
"webpack-merge": "^4.1.3",
"webpack-rev-replace-plugin": "^0.1.1"
}
}
我相信这个错误是因为我为我的项目安装了两个版本的 Webpack。从错误发生在一个环境而不是其他环境中的角度来看，这是有道理的。也许 npm 依赖关系树不同，并且出于某种原因正在使用旧版本的 Webpack。
有一个 npm 包：webpack-rev-replace-plugin 具有 Webpack v1.5 依赖项。我使用的是 Webpack v4.16。一旦我删除了 webpack-rev-replace-plugin 并因此删除了旧版本的 Webpack，我开始收到与 uglifyjs-webpack-plugin 相关的不同错误，一旦我删除了 uglifyjs-webpack-plugin 并且只是使用 Webpacks 默认值进行缩小等，一切都很好。
我正在使用 @ngtools/webpack 作为我的 Angular CLI，用于将 AOT 编译添加到我的 Angular 5 应用程序。对任何人来说都不足为奇，这对我来说已经
我已经让 AOT 在 3 个环境中工作，本地主机、开发和暂存。当然，昨天部署到生产环境时，我发现我的 Webpack 构建崩溃了。
虽然我确定问题的根源是 @ngtools/webpack.AngularCompilerPlugin.
我的错误信息是几百条：
UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: #): TypeError: Cannot read property 'request' of undefined
在 Webpack 的 AOT Plugin 步骤发出数百个此类 UnhandledPromiseRejectionWarnings 之后，它继续构建 node_module 代码，然后未能创建 dist 输出：
> tsl-frontend@0.1.0 build-production /app
> webpack --mode production -p --progress --colors --env.env production
env configuration production
***AOT Compilation***
WebpackDelPlugin::Successfully deleted /app/dist/*.* assets.
[91m 0% compiling[0m[91m[0m[91m 10% building modules 0/1 modules 1 active multi babel-polyfill ./src/main.ts[0m[91m 10% building modules 1/1 modules 0 active[0m[91m(node:15) DeprecationWarning: Tapable.plugin is deprecated. Use new API on `.hooks` instead
[0m[91m(node:15) DeprecationWarning: Tapable.apply is deprecated. Call apply on the plugin directly instead
[0m[91m(node:15) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): TypeError: Cannot read property 'request' of undefined
(node:15) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 2): TypeError: Cannot read property 'request' of undefined
[0m[91m(node:15) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 3): TypeError: Cannot read property 'request' of undefined
(node:15) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 4): TypeError: Cannot read property 'request' of undefined
(node:15) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 5): TypeError: Cannot read property 'request' of undefined
///----removed for brevity
(node:15) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 202): TypeError: Cannot read property 'request' of undefined
[0m[91m 10% building modules 1/2 modules 1 active ?ode_modules/babel-polyfill/lib/index.js
//removed for brevity
70% building modules 2087/2087 modules 0 active[0mRemoving intermediate container b082f2548cbe
---> 098c4df274ad
Step 14/17 : RUN cd /app && cp -a dist/* /usr/share/nginx/html
---> Running in e179a7482da7
[91mcp: cannot stat 'dist/*': No such file or directory
[0mRemoving intermediate container e179a7482da7
Service 'frontendproduction' failed to build: The command '/bin/sh -c cd /app && cp -a dist/* /usr/share/nginx/html' returned a non-zero code: 1
我研究了一段时间，找到了几个我认为可能相关的网络链接，尝试了很多修复方法，尤其是 this article 但没有成功。这是我认为可能相关但没有帮助的其他几篇文章：
- TypeError: Cannot read property 'request' of undefined with angular-cli
- https://github.com/angular/angular-cli/issues/1922
这是我的 Webpack.config.js:
var merge = require('webpack-merge'),
htmlPlugin = require('html-webpack-plugin'),
revPlugin = require('webpack-rev-replace-plugin'),
config = require('./build.config.json'),
path = require('path'),
extendedDefinePlugin = require('extended-define-webpack-plugin'),
webpackDelPlugin = require('webpack-del-plugin'),
openBrowserPlugin = require('open-browser-webpack-plugin'),
uglifyJSPlugin = require('uglifyjs-webpack-plugin');
const AotPlugin = require('@ngtools/webpack').AngularCompilerPlugin;
//import {AngularCompilerPlugin} from '@ngtools/webpack';
//Note : in package.json the last variable (dev) is the param delivered to this function { env: 'dev' }.
module.exports = function (env) {
console.log('env configuration', env.env);
/**
* configPerTarget is merged with build.config.json based on the env passed
* currently no configuration properties, this configPerTarget not in use per se, keeping just in case - Ogden 4-12-2018
*/
var configPerTarget = {
localhost: {
},
development: {
},
test: {
},
staging: {
},
production: {
},
maintenance: {
}
};
// Note : '__dirname' is the root file path.
const ROOT_DIR = path.resolve(__dirname);
const DIST_DIR = path.join(ROOT_DIR, config.dist);
// If no env make it dev
if (!env) {
env = {};
env.env = config.envDevelopment;
}
//merge config with env specific configPerTarget
config = merge(config, configPerTarget[env.env]);
// this takes path variables from build.config.json and builds it with given env
var appConfigPath = config.envs + config.appConfig.replace('{env}', env.env);
var webPackConfig = {
entry: ['babel-polyfill', config.src + config.entry],//main.ts
output: {
path: path.resolve(__dirname, config.dist),
filename: config.buildjs,
sourceMapFilename: config.buildjsmap,
chunkFilename: config.buildchunk
},
module: {
rules: [
{ test: /\.html$/, use: 'raw-loader' },
{ test: /\.css$/, use: 'raw-loader' },
{
test: /\.scss$/,
exclude: /node_modules/,
loaders: ['style-loader', 'css-loader', 'sass-loader'],
},
//For images.
{ test: /\.(jpe?g|png|gif|svg)$/i, loader: 'file-loader?name=app/assets/images/[name].[ext]' },
{
test: /\.(ttf|eot|woff|woff2)$/,
loader: 'file-loader'
},
]
},
//https://webpack.js.org/configuration/devtool/
//Webpack 4.4 has its own mode development and production, which are environment modes
//do Webpack 4.4 is handling the devtool sourcemap config where in the past it was not
//looks like we no longer have to worry about setting devtool
//https://github.com/damianobarbati/yarsk/blob/50b6f352a13ec2e778fa8b252f915550b6132964/config/webpack.config.js#L110
//devtool: config.devtool,
resolve: {
modules: [__dirname + path.sep + 'src', __dirname, 'node_modules'],
extensions: ['.js', '.ts', '.scss', '.css', '.html']
},
plugins: [
new htmlPlugin({
template: config.src + config.index
}),
new revPlugin({
cwd: config.src,
files: '**/*.html',
outputPageName: function (filename) {
return filename;
},
modifyReved: function (filename) {
return filename.replace(/(\/style\/|\/script\/)/, '')
}
}),
//Makes AppConfig variable available in the application code.
new extendedDefinePlugin({
AppConfig: require(appConfigPath)
}),
//Usefull if you need remove some files or folders before compilation processes.
//currently not used (no dist file).
new webpackDelPlugin({ match: path.join(DIST_DIR, '*.*') }),
//opens browser after compilation.
new openBrowserPlugin({ url: 'http://localhost:8080' })
],
optimization: {
minimizer: [
new uglifyJSPlugin({
uglifyOptions: {
output: {
comments: false,
ascii_only: true //must be on to fix this issue https://github.com/angular/angular/issues/19475
}
}
})
]
}
}
if (env.env === config.envLocalhost) {
webPackConfig.module.rules.push(
{
test: /\.ts$/,
loaders: [
'ts-loader',
'angular2-template-loader',
'angular-router-loader']
}
);
return webPackConfig;
}
//********************************AOT Compilation*************************************** */
//-- AOT Compilation from this point on, currently AOT runs in all environments
//this seems helpful because you get to see AOT build errors before pushing to build server
//the downside might be more mangled code and harder to debug source code...
console.log('***AOT Compilation***');
webPackConfig.module.rules.push(
{
test: /(?:\.ngfactory\.js|\.ngstyle\.js|\.ts)$/,
loaders: ['@ngtools/webpack']
}
);
webPackConfig.plugins.push(new AotPlugin({
tsConfigPath: './tsconfig-aot.json',
entryModule: path.join(config.src, 'app/app.module#AppModule'),
sourceMap: true
}));
return webPackConfig;
}
这是我的 package.json:
{
"name": "tsl-frontend",
"version": "0.1.0",
"scripts": {
"test": "karma start",
"build-localhost": "webpack --mode development --progress --colors --env.env localhost",
"build-development": "webpack --mode development --progress --colors --env.env development",
"build-staging": "webpack --mode production --progress --colors --env.env staging",
"build-production": "webpack --mode production -p --progress --colors --env.env production",
"build-maintenance": "webpack --mode production -p --progress --colors --env.env maintenance",
"serve": "webpack-dev-server --mode development --inline --progress --colors --env.env development",
"serve-production": "webpack-dev-server --mode production --inline --progress --colors --env.env development",
"serve-localhost": "webpack-dev-server --mode development --inline --progress --colors --env.env localhost",
"serve-host": "webpack-dev-server --host 0.0.0.0 --port 80 --disable-host-check --mode development --inline --progress --colors --env.env localhost",
"serve-maintenance": "webpack-dev-server --mode development --inline --progress --colors --env.env maintenance"
},
"dependencies": {
"@angular/animations": "^5.2.11",
"@angular/cdk": "^2.0.0-beta.12",
"@angular/common": "^5.2.11",
"@angular/compiler": "^5.2.11",
"@angular/compiler-cli": "^5.2.11",
"@angular/core": "^5.2.11",
"@angular/forms": "^5.2.11",
"@angular/http": "^5.2.11",
"@angular/material": "^2.0.0-beta.12",
"@angular/platform-browser": "^5.2.11",
"@angular/platform-browser-dynamic": "^5.2.11",
"@angular/platform-server": "^5.2.11",
"@angular/router": "^5.2.11",
"@ng-bootstrap/ng-bootstrap": "^1.1.2",
"@types/file-saver": "^1.3.0",
"angular2-jwt": "^0.2.3",
"angular2-text-mask": "^8.0.5",
"bootstrap": "^4.1.2",
"chart.js": "^2.7.2",
"devextreme": "^18.1.4",
"devextreme-angular": "^18.1.4",
"file-saver": "^1.3.8",
"font-awesome": "^4.7.0",
"moment": "2.18.1",
"moment-timezone": "0.5.13",
"ng2-bootstrap-modal": "1.0.1",
"ng2-charts": "^1.6.0",
"ng2-drag-drop": "^2.9.2",
"ng2-page-scroll": "^4.0.0-beta.12",
"ng2-toastr": "^4.1.2",
"popper.js": "^1.14.3",
"reflect-metadata": "0.1.8",
"rxjs": "5.5.5",
"systemjs": "0.19.40",
"typescript": "^2.9.2",
"xlsx": "^0.11.19",
"zone.js": "^0.8.26"
},
"devDependencies": {
"@ngtools/webpack": "^6.0.8",
"@servicestack/client": "^1.0.14",
"@types/file-saver": "^1.3.0",
"@types/jasmine": "^2.8.8",
"@types/node": "7.0.7",
"angular-router-loader": "^0.6.0",
"angular2-router-loader": "^0.3.5",
"angular2-template-loader": "^0.6.2",
"babel-polyfill": "^6.26.0",
"css-loader": "^0.28.11",
"extended-define-webpack-plugin": "^0.1.3",
"extract-text-webpack-plugin": "^3.0.2",
"file-loader": "^1.1.11",
"file-saver": "^1.3.8",
"html-webpack-plugin": "^4.0.0-alpha",
"jasmine": "^2.99.0",
"karma": "^1.7.0",
"karma-sourcemap-loader": "^0.3.7",
"karma-webpack": "^2.0.13",
"ng-intercom": "^1.0.0-beta.5-2",
"ng2-tree": "^2.0.0-rc.11",
"node-sass": "^4.9.2",
"open-browser-webpack-plugin": "0.0.5",
"path": "^0.12.7",
"raw-loader": "^0.5.1",
"sass-loader": "^6.0.7",
"style-loader": "^0.13.2",
"text-mask-addons": "^3.7.2",
"toposort": "^1.0.7",
"ts-loader": "^4.4.2",
"webpack": "^4.16.1",
"webpack-cli": "^2.1.5",
"webpack-del-plugin": "0.0.1",
"webpack-dev-server": "^3.1.4",
"webpack-merge": "^4.1.3",
"webpack-rev-replace-plugin": "^0.1.1"
}
}
我相信这个错误是因为我为我的项目安装了两个版本的 Webpack。从错误发生在一个环境而不是其他环境中的角度来看，这是有道理的。也许 npm 依赖关系树不同，并且出于某种原因正在使用旧版本的 Webpack。
有一个 npm 包：webpack-rev-replace-plugin 具有 Webpack v1.5 依赖项。我使用的是 Webpack v4.16。一旦我删除了 webpack-rev-replace-plugin 并因此删除了旧版本的 Webpack，我开始收到与 uglifyjs-webpack-plugin 相关的不同错误，一旦我删除了 uglifyjs-webpack-plugin 并且只是使用 Webpacks 默认值进行缩小等，一切都很好。