我已将我的项目从 Angular 8 升级到 Angular 11。它在 DEV 模式下运行良好，但如果我在 Prod 模式下运行它或构建它并将其部署到 Web 服务器。在浏览器中启动网站时出现以下错误：
main.js:1 Uncaught TypeError: Cannot read property 'prototype' of undefined
at main.js:1
at main.js:1
at Module.zUnb (main.js:1)
at l (runtime.js:1)
at Object.0 (main.js:1)
at l (runtime.js:1)
at t (runtime.js:1)
at Array.r [as push] (runtime.js:1)
at main.js:1
我猜在使用 webpack 将代码编译为包时出了点问题。 升级前的 package.json：
{
"name": "xxxxxx",
"version": "1.1.1",
"license": "UNLICENSED",
"scripts": {
"ng": "ng",
"start": "ng serve",
"start-ssl": "ng serve --proxy-config proxy.conf.json --ssl true",
"start-nossl": "ng serve --proxy-config proxy.conf.json",
"build": "ng build",
"build-prod": "node --max_old_space_size=2000000 ./node_modules/@angular/cli/bin/ng build --prod --base-href /caui/",
"build-prod19": "node --max_old_space_size=2000000 ./node_modules/@angular/cli/bin/ng build --prod --base-href /caui19/",
"build-test": "node --max_old_space_size=5048 ./node_modules/@angular/cli/bin/ng test --watch=false -cc",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"private": true,
"dependencies": {
"@angular/animations": "8.2.0",
"@angular/common": "8.2.0",
"@angular/compiler": "8.2.0",
"@angular/compiler-cli": "8.2.0",
"@angular/core": "8.2.0",
"@angular/forms": "8.2.0",
"@angular/platform-browser": "8.2.0",
"@angular/platform-browser-dynamic": "8.2.0",
"@angular/platform-server": "8.2.0",
"@angular/router": "8.2.0",
"@angular/cdk": "8.1.2",
"@ng-bootstrap/ng-bootstrap": "5.1.1",
"@ngrx/core": "^1.2.0",
"@ngrx/effects": "^8.2.0",
"@ngrx/router-store": "^8.2.0",
"@ngrx/store": "^8.2.0",
"@swimlane/ngx-datatable": "15.0.2",
"@types/lodash": "^4.14.136",
"ag-grid-angular": "^20.2.0",
"ag-grid-community": "^20.2.0",
"angular-tree-component": "^8.4.0",
"angular2-csv": "^0.2.9",
"angular2-hotkeys": "^2.1.5",
"core-js": "^3.1.4",
"font-awesome": "^4.7.0",
"lodash": "^4.17.15",
"ng-http-loader": "^6.0.1",
"ngrx-store-localstorage": "^8.0.0",
"ngx-clipboard": "^12.2.0",
"primeicons": "^2.0.0",
"primeng": "^8.0.2",
"reselect": "^4.0.0",
"rxjs": "^6.5.2",
"rxjs-compat": "6.5.2",
"zone.js": "^0.10.0"
},
"devDependencies": {
"@angular-devkit/build-angular": "~0.802.0",
"@angular/cli": "8.2.0",
"@angular/language-service": "8.2.0",
"@types/jasmine": "^3.3.16",
"@types/jasminewd2": "^2.0.6",
"@types/node": "~8.9.4",
"codelyzer": "^5.1.0",
"jasmine-core": "^3.4.0",
"jasmine-spec-reporter": "^4.2.1",
"karma": "^4.2.0",
"karma-chrome-launcher": "^2.2.0",
"karma-cli": "^2.0.0",
"karma-coverage-istanbul-reporter": "^2.1.0",
"karma-jasmine": "^2.0.1",
"karma-jasmine-html-reporter": "^1.4.2",
"ngrx-store-logger": "^0.2.4",
"protractor": "~5.1.2",
"ts-node": "~8.3.0",
"tslint": "^5.18.0",
"typescript": "^3.5.3",
"webpack": "^4.39.1"
}
升级后的package.json：
{
"name": "xxxxxx",
"version": "18.5.0",
"license": "UNLICENSED",
"scripts": {
"ng": "ng",
"start": "ng serve",
"start-ssl": "node --max_old_space_size=2000000 ./node_modules/@angular/cli/bin/ng serve --proxy-config proxy.conf.json --ssl true --prod",
"start-nossl": "node --max_old_space_size=2000000 ./node_modules/@angular/cli/bin/ng serve --proxy-config proxy.conf.json --prod",
"build": "ng build",
"build-prod": "node --max_old_space_size=2000000 ./node_modules/@angular/cli/bin/ng build --prod --base-href /caui/",
"build-prod19": "node --max_old_space_size=2000000 ./node_modules/@angular/cli/bin/ng build --prod --base-href /caui19/",
"build-test": "node --max_old_space_size=5048 ./node_modules/@angular/cli/bin/ng test --watch=false -cc",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"private": true,
"dependencies": {
"@angular/animations": "~11.2.1",
"@angular/common": "~11.2.1",
"@angular/compiler": "~11.2.1",
"@angular/core": "~11.2.1",
"@angular/forms": "~11.2.1",
"@angular/platform-browser": "~11.2.1",
"@angular/platform-browser-dynamic": "~11.2.1",
"@angular/router": "~11.2.1",
"@angular/cdk": "11.1.1",
"@ng-bootstrap/ng-bootstrap": "5.1.1",
"@ngrx/core": "^1.2.0",
"@ngrx/effects": "^11.0.1",
"@ngrx/router-store": "^11.0.1",
"@ngrx/store": "^11.0.1",
"@swimlane/ngx-datatable": "19.0.0",
"@types/lodash": "4.14.160",
"@types/mousetrap": "^1.6.5",
"mousetrap": "^1.6.5",
"ag-grid-angular": "^25.0.1",
"ag-grid-community": "^25.0.1",
"angular-tree-component": "^8.5.6",
"angular2-csv": "^0.2.9",
"core-js": "^3.8.3",
"font-awesome": "^4.7.0",
"lodash": "^4.17.15",
"ng-http-loader": "^9.1.0",
"ngrx-store-localstorage": "^10.1.2",
"ngx-clipboard": "^14.0.1",
"primeicons": "^4.1.0",
"primeng": "^11.2.0",
"reselect": "^4.0.0",
"rxjs": "~6.6.0",
"rxjs-compat": "~6.6.0",
"tslib": "^2.0.0",
"zone.js": "~0.11.3"
},
"devDependencies": {
"@angular-devkit/build-angular": "~0.1102.1",
"@angular/cli": "~11.2.1",
"@angular/compiler-cli": "~11.2.1",
"@types/jasmine": "~3.6.0",
"@types/node": "^12.11.1",
"codelyzer": "^6.0.0",
"jasmine-core": "~3.6.0",
"jasmine-spec-reporter": "~5.0.0",
"karma": "~5.2.0",
"karma-chrome-launcher": "~3.1.0",
"karma-coverage": "~2.0.3",
"karma-jasmine": "~4.0.0",
"karma-jasmine-html-reporter": "^1.5.0",
"protractor": "~7.0.0",
"ts-node": "~8.3.0",
"tslint": "~6.1.0",
"typescript": "~4.1.2",
"ngrx-store-logger": "^0.2.4",
"webpack": "^4.39.1"
}
}
tsconfig.json
{
"compileOnSave": false,
"compilerOptions": {
"outDir": "./dist/out-tsc",
"baseUrl": "src",
"sourceMap": true,
"declaration": false,
"downlevelIteration": true,
"moduleResolution": "node",
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"target": "es5",
"module": "esnext",
"typeRoots": [
"node_modules/@types"
],
"lib": [
"es2018",
"dom"
]
},
"angularCompilerOptions": {
"enableI18nLegacyMessageIdFormat": false
}
}
知道哪里出了问题吗？
答案 0 :(得分：0)
事实证明我必须关闭angular.json中的buildOptimizer。