当我在下面将sourceMap设置为true时，我的Web项目的cli cli构建会花费很长时间。我一直在等待约40分钟以上，但是构建尚未完成，否则，如果将其设置为false，它会在45秒内完成。谁能建议我如何找出造成这种速度缓慢的原因或原因？
我称之为ng build --configuration = production。
我正在使用以下版本
node - v8.9.4
npm - 5.6.0
**ng package version**
Package Version
------------------------------------------------------
@angular-devkit/architect 0.12.3
@angular-devkit/core 7.2.3
@angular-devkit/schematics 7.2.3
@angular/cli 7.2.3
@schematics/angular 7.2.3
@schematics/update 0.12.3
rxjs 6.3.3
typescript 3.2.2
下面是我的用于生产的 angular.json 配置。
"configurations": {
"production": {
"optimization": true,
"outputHashing": "all",
"sourceMap": true,
"extractCss": true,
"namedChunks": false,
"aot": true,
"extractLicenses": true,
"vendorChunk": false,
"buildOptimizer": true,
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.prod.ts"
}
]
我的 package.json 文件如下
{
"name": "test-web",
"version": "0.0.1",
"license": "MIT",
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"build-prod": "ng build --configuration=production",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"private": true,
"dependencies": {
"@angular/animations": "6.0.0",
"@angular/common": "6.0.0",
"@angular/compiler": "6.0.0",
"@angular/core": "6.0.0",
"@angular/forms": "6.0.0",
"@angular/http": "6.0.0",
"@angular/platform-browser": "6.0.0",
"@angular/platform-browser-dynamic": "6.0.0",
"@angular/router": "6.0.0",
"@fortawesome/angular-fontawesome": "0.1.0-10",
"@fortawesome/fontawesome-svg-core": "1.2.0",
"@fortawesome/free-solid-svg-icons": "5.1.0",
"@ng-bootstrap/ng-bootstrap": "2.0.0",
"bootstrap": "^4.0.0-beta.2",
"core-js": "^2.4.1",
"devextreme": "^17.2.4",
"devextreme-angular": "^17.2.4",
"moment": "^2.22.2",
"rxjs": "^6.1.0",
"zone.js": "^0.8.26"
},
"devDependencies": {
"@angular-devkit/build-angular": "~0.6.0",
"@angular/cli": "^6.0.0",
"@angular/compiler-cli": "6.0.0",
"@angular/language-service": "6.0.0",
"@types/jasmine": "~2.5.53",
"@types/jasminewd2": "~2.0.2",
"@types/node": "~6.0.60",
"codelyzer": "4.3.0",
"jasmine-core": "~2.6.2",
"jasmine-spec-reporter": "~4.1.0",
"karma": "~1.7.0",
"karma-chrome-launcher": "~2.1.1",
"karma-cli": "~1.0.1",
"karma-coverage-istanbul-reporter": "^1.2.1",
"karma-jasmine": "~1.1.0",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~5.1.2",
"ts-node": "~3.2.0",
"tslint": "5.10.0",
"typescript": "2.7.2"
}
}