Javascript ng build-来自Terser的scripts.XX.js中出现错误;f";重新申报
我正在使用Angular 6为ASP NET web应用程序实现前端。 关于性能问题,我想减小vendor.js文件的大小。 因此,我找到了使用以下命令构建角度项目的解决方案:Javascript ng build-来自Terser的scripts.XX.js中出现错误;f";重新申报,javascript,typescript,angular6,ng-build,terser,Javascript,Typescript,Angular6,Ng Build,Terser,我正在使用Angular 6为ASP NET web应用程序实现前端。 关于性能问题,我想减小vendor.js文件的大小。 因此,我找到了使用以下命令构建角度项目的解决方案: ng build--prod--base href“myURL” 现在我得到以下错误: ERROR in scripts.XX.js from Terser "f" is redeclared [scripts.XX.js:2483, 589] “XX”是类似于737de149a78的散列。我已经阅读了几个问题和答案,
ng build--prod--base href“myURL”
现在我得到以下错误:
ERROR in scripts.XX.js from Terser
"f" is redeclared [scripts.XX.js:2483, 589]
“XX”是类似于737de149a78
的散列。我已经阅读了几个问题和答案,将Terser的版本更改为3.14.1没有帮助。
我解决这个问题的第一个方法是尝试在整个项目中找到一个名为“f”的变量或模块,查看它是否在任何时候被重新声明,但名为“f”的变量并不存在
所以我的问题是:我如何找到似乎要重新声明的变量,而不必经过数千个文件和代码行?或者是否有其他方法修复此错误
package.json:
{
"name": "myProj",
"version": "1.1.0",
"scripts": {
"ng": "ng",
"json-server": "json-server --watch db.json",
"start": "ng serve --proxy-config proxy.config.json",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"private": true,
"dependencies": {
"@angular-devkit/core": "^0.6.5",
"@angular-devkit/schematics": "^0.6.5",
"@angular/animations": "^6.1.6",
"@angular/cdk": "^6.4.7",
"@angular/common": "^6.1.6",
"@angular/compiler": "^6.1.6",
"@angular/core": "^6.1.6",
"@angular/forms": "^6.1.6",
"@angular/http": "^6.1.6",
"@angular/material": "^6.4.7",
"@angular/material-moment-adapter": "^8.0.1",
"@angular/platform-browser": "^6.1.6",
"@angular/platform-browser-dynamic": "^6.1.6",
"@angular/router": "^6.1.6",
"@ng-bootstrap/ng-bootstrap": "^3.2.0",
"angular-highcharts": "^8.0.2",
"angular-in-memory-web-api": "^0.6.1",
"angular-popper": "^2.0.0",
"bootstrap": "^4.1.3",
"core-js": "^2.5.4",
"cors": "^2.8.5",
"highcharts": "^7.1.2",
"jquery": "^3.3.1",
"json-server": "^0.14.0",
"moment": "^2.24.0",
"ngx-cookie": "^4.1.2",
"ngx-cookie-service": "^2.3.0",
"popper.js": "^1.14.4",
"rxjs": "^6.3.1",
"tooltip.js": "^1.3.0",
"tslib": "^1.9.0",
"zone.js": "~0.8.26"
},
"devDependencies": {
"@angular-devkit/build-angular": "^0.13.9",
"@angular/cli": "~7.3.9",
"@angular/compiler-cli": "^6.1.6",
"@angular/language-service": "^6.1.6",
"@types/jasmine": "~2.8.6",
"@types/jasminewd2": "~2.0.3",
"@types/node": "~8.9.4",
"codelyzer": "~4.2.1",
"jasmine-core": "~2.99.1",
"jasmine-spec-reporter": "~4.2.1",
"karma": "~1.7.1",
"karma-chrome-launcher": "~2.2.0",
"karma-coverage-istanbul-reporter": "~2.0.0",
"karma-jasmine": "~1.1.1",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~5.4.0",
"ts-node": "~5.0.1",
"tslint": "~5.9.1",
"typescript": "~2.9.2"
}
}
我很高兴能得到任何帮助
编辑:
我有一个临时解决方案,也可以帮助其他不得不面对这个问题的人:
ng build--prod--optimization=false--base href“myURL”
为什么在我的情况下这不是一个合适的解决方案:
在使用--prod
标志构建Angular项目后,项目没有正确构建,但还是创建了scripts.XX.js文件。在这个文件中有多个名为f的变量。作为下一步,我查看了--prod
标志的作用(请参阅:)
在进一步的细节(请参阅:)中,我了解到启用--prod
标志会导致重写代码以使用简短、神秘的名称(“缩小”)
还声明,应用程序生成器使用webpack构建工具(请参阅:)
因此,我解决问题的方法是禁用terser插件的缩小功能。这可以通过将angular.json文件中的“优化”
更改为false
(请参阅:)来实现:
“配置”:{
“生产”:{
“优化”:错//
"configurations": {
"production": {
"optimization": false, // <--- change optimization to false
"outputHashing": "all",
"sourceMap": false,
"extractCss": true,
"namedChunks": false,
"aot": true,
"extractLicenses": true,
"vendorChunk": false,
"buildOptimizer": true
}
}