我最近将应用程序从ionic 4迁移到了Angular 7到了9。对config&密码Ionic发球效果很好。创建生产版本时也没有错误。但应用程序没有加载！在应用程序中也使用了服务工作者。
遵循Ionic&角度
Package.json-->
{ "name": "OpsTrakker", "version": "1.3.1", "author": "Ionic Framework", "homepage": "https://ionicframework.com/", "scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build --prod --stats-json --build-optimizer=true --vendor-chunk=true --aot --baseHref=/OpsTrakkerWeb/",
"buildIonic": "ionic build --prod --release -- --base-href /OpsTrakkerWeb/",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e" }, "private": true, "dependencies": {
"@angular/animations": "^8.2.3",
"@angular/cdk": "^6.3.0",
"@angular/common": "^7.2.2",
"@angular/core": "^7.2.2",
"@angular/forms": "^7.2.2",
"@angular/http": "^7.2.2",
"@angular/platform-browser": "^7.2.15",
"@angular/platform-browser-dynamic": "^7.2.2",
"@angular/pwa": "^0.12.4",
"@angular/router": "^7.2.2",
"@angular/service-worker": "^7.2.2",
"@ionic-native/barcode-scanner": "^5.6.1",
"@ionic-native/core": "^5.0.0",
"@ionic-native/file": "^5.14.0",
"@ionic-native/file-transfer": "^5.15.0",
"@ionic-native/http": "^5.6.0",
"@ionic-native/in-app-browser": "^5.26.0",
"@ionic-native/keyboard": "^5.20.0",
"@ionic-native/network": "^5.25.0",
"@ionic-native/splash-screen": "^5.0.0",
"@ionic-native/status-bar": "^5.0.0",
"@ionic/angular": "^4.1.0",
"@ionic/pro": "2.0.4",
"@ionic/storage": "^2.2.0",
"@ng-idle/core": "^7.0.0-beta.1",
"@ng-idle/keepalive": "^7.0.0-beta.1",
"@swimlane/ngx-datatable": "^16.0.2",
"ag-grid-angular": "^21.2.1",
"ag-grid-community": "^21.2.1",
"angular-split": "^3.0.2",
"classlist.js": "^1.1.20150312",
"cordova-android": "8.0.0",
"cordova-browser": "^6.0.0",
"cordova-ios": "5.1.1",
"cordova-plugin-advanced-http": "^2.0.9",
"cordova-plugin-device": "2.0.2",
"cordova-plugin-file": "^6.0.2",
"cordova-plugin-file-transfer": "1.7.1",
"cordova-plugin-ionic-keyboard": "^2.0.5",
"cordova-plugin-ionic-webview": "^4.0.0",
"cordova-plugin-splashscreen": "5.0.2",
"cordova-plugin-statusbar": "2.4.2",
"cordova-plugin-whitelist": "1.3.3",
"cordova-plugin-wkwebview-cookie-sync": "^1.1.4",
"cordova-sqlite-storage": "^3.2.0",
"core-js": "^2.5.4",
"help": "3.0.2",
"ionic-angular": "^3.9.6",
"ionic-selectable": "4.5.2",
"ionic4-auto-complete": "2.5.2",
"moment": "^2.24.0",
"moment-timezone": "^0.5.27",
"ng-block-ui": "^2.1.8",
"ng-pick-datetime": "^7.0.0",
"ng-pick-datetime-moment": "^1.0.8",
"ngx-pinch-zoom": "^1.2.5",
"ngx-webcam": "^0.2.6",
"phonegap-plugin-barcodescanner": "^8.0.1",
"rxjs": "~6.5.1",
"rxjs-compat": "^6.5.3",
"tslib": "^1.9.0",
"underscore": "^1.9.1",
"zone.js": "~0.8.29" }, "devDependencies": {
"@angular-devkit/architect": "~0.13.8",
"@angular-devkit/build-angular": "^0.13.9",
"@angular-devkit/core": "~7.3.8",
"@angular-devkit/schematics": "~7.3.8",
"@angular/cli": "~7.3.8",
"@angular/compiler": "~7.2.2",
"@angular/compiler-cli": "~7.2.2",
"@angular/language-service": "~7.2.2",
"@ionic/angular-toolkit": "~1.5.1",
"@ionic/app-scripts": "^3.2.4",
"@types/jasmine": "~2.8.8",
"@types/jasminewd2": "~2.0.3",
"@types/moment-timezone": "^0.5.12",
"@types/node": "~12.0.0",
"codelyzer": "~4.5.0",
"cordova-plugin-device": "^2.0.2",
"cordova-plugin-ionic-keyboard": "^2.2.0",
"cordova-plugin-ionic-webview": "^4.1.2",
"cordova-plugin-splashscreen": "^5.0.2",
"cordova-plugin-statusbar": "^2.4.2",
"cordova-plugin-whitelist": "^1.3.3",
"jasmine-core": "~2.99.1",
"jasmine-spec-reporter": "~4.2.1",
"karma": "~4.1.0",
"karma-chrome-launcher": "~2.2.0",
"karma-coverage-istanbul-reporter": "~2.0.1",
"karma-jasmine": "~1.1.2",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~5.4.0",
"ts-node": "~8.1.0",
"tslint": "~5.16.0",
"typescript": "~3.1.6",
"webpack-bundle-analyzer": "^3.6.0" }, "description": "An Ionic project", "cordova": {
"plugins": {
"cordova-sqlite-storage": {},
"cordova-plugin-advanced-http": {},
"phonegap-plugin-barcodescanner": {},
"cordova-plugin-whitelist": {},
"cordova-plugin-statusbar": {},
"cordova-plugin-device": {},
"cordova-plugin-splashscreen": {},
"cordova-plugin-ionic-webview": {},
"cordova-plugin-ionic-keyboard": {},
"cordova-plugin-wkwebview-cookie-sync": {},
"cordova-plugin-file-transfer": {}
},
"platforms": [
"android",
"browser",
"ios"
],
"config": {
"ionic_uglifyjs": "./config/uglifyjs.config.js"
} } }
经过大量分析，我将buildOptimizer标记为false，从而解决了这个问题。
确保在angular.json设置中-->
"buildOptimizer": false