我的应用可以正常投放，但是在进行npm run build:ssr && npm run serve:ssr
时遇到此错误
这是angular-errors.log的内容：
[错误] TypeError：无法分配为只读对象“＃”的属性“ _showWarnings”
at TapSubscriber._visitJsonRecursive.pipe.operators_1.tap.x [as _tapNext] (app-directory\node_modules\@angular-devkit\core\src\json\schema\visitor.js:56:210) at TapSubscriber._next (app-directory\node_modules\@angular-devkit\core\node_modules\rxjs\internal\operators\tap.js:59:27) at TapSubscriber.Subscriber.next (app-directory\node_modules\@angular-devkit\core\node_modules\rxjs\internal\Subscriber.js:66:18) at MergeMapSubscriber.notifyNext (app-directory\node_modules\@angular-devkit\core\node_modules\rxjs\internal\operators\mergeMap.js:92:26) at InnerSubscriber._next (app-directory\node_modules\@angular-devkit\core\node_modules\rxjs\internal\InnerSubscriber.js:28:21) at InnerSubscriber.Subscriber.next (app-directory\node_modules\@angular-devkit\core\node_modules\rxjs\internal\Subscriber.js:66:18) at app-directory\node_modules\@angular-devkit\core\node_modules\rxjs\internal\util\subscribeTo.js:17:28 at Object.subscribeToResult (app-directory\node_modules\@angular-devkit\core\node_modules\rxjs\internal\util\subscribeToResult.js:10:45) at MergeMapSubscriber._innerSub (app-directory\node_modules\@angular-devkit\core\node_modules\rxjs\internal\operators\mergeMap.js:82:29) at MergeMapSubscriber._tryNext (app-directory\node_modules\@angular-devkit\core\node_modules\rxjs\internal\operators\mergeMap.js:76:14) at MergeMapSubscriber._next (app-directory\node_modules\@angular-devkit\core\node_modules\rxjs\internal\operators\mergeMap.js:59:18) at MergeMapSubscriber.Subscriber.next (app-directory\node_modules\@angular-devkit\core\node_modules\rxjs\internal\Subscriber.js:66:18) at Observable._subscribe (app-directory\node_modules\@angular-devkit\core\node_modules\rxjs\internal\observable\scalar.js:6:20) at Observable._trySubscribe (app-directory\node_modules\@angular-devkit\core\node_modules\rxjs\internal\Observable.js:44:25) at Observable.subscribe (app-directory\node_modules\@angular-devkit\core\node_modules\rxjs\internal\Observable.js:30:22) at MergeMapOperator.call (app-directory\node_modules\@angular-devkit\core\node_modules\rxjs\internal\operators\mergeMap.js:39:23)
这是我在某处阅读的package-lock.json依赖关系，具体来说，他们说可能是a mismatch between angular/cli and @angular-devkit/build-angular version.，但在我看来，这很好：
> "dependencies": {
> "@agm/core": "^1.1.0",
> "@angular-persian/material-date-picker": "^1.8.1",
> "@angular/animations": "^8.2.0",
> "@angular/cdk": "~8.2.3",
> "@angular/common": "^8.2.0",
> "@angular/compiler": "^8.2.0",
> "@angular/core": "^8.2.0",
> "@angular/flex-layout": "^8.0.0-beta.27",
> "@angular/forms": "^8.2.0",
> "@angular/http": "^7.2.15",
> "@angular/material": "^8.2.3",
> "@angular/platform-browser": "^8.2.0",
> "@angular/platform-browser-dynamic": "^8.2.0",
> "@angular/platform-server": "^8.2.0",
> "@angular/router": "^8.2.0",
> "@aspnet/signalr": "^1.1.4",
> "@ks89/angular-modal-gallery": "^7.2.5",
> "@ng-select/ng-select": "3.6.1",
> "@ngu/carousel": "^1.5.5",
> "@nguniversal/express-engine": "^8.1.1",
> "@nguniversal/module-map-ngfactory-loader": "8.1.1",
> "@ngx-translate/core": "^11.0.1",
> "@ngx-translate/http-loader": "^4.0.0",
> "@nicky-lenaers/ngx-scroll-to": "^3.0.1",
> "@nrwl/angular": "8.7.0",
> "@nsalaun/ng-logger": "^7.0.0",
> "@types/core-js": "^2.5.0",
> "@types/html-minifier": "^3.5.3",
> "@types/leaflet": "^1.5.5",
> "angular-notifier": "^6.0.1",
> "chart.js": "^2.9.3",
> "chartjs-plugin-labels": "^1.1.0",
> "core-js": "^2.4.1",
> "devextreme": "19.2.4",
> "devextreme-angular": "19.2.4",
> "devextreme-intl": "^19.1.7",
> "express": "^4.15.2",
> "fate-editor": "^1.10.1",
> "font-awesome": "^4.7.0",
> "hammerjs": "^2.0.8",
> "hashmap": "^2.4.0",
> "install": "^0.13.0",
> "jalali-moment": "^3.3.3",
> "jquery": "^3.4.1",
> "leaflet": "^1.6.0",
> "moment-jalaali": "^0.9.1",
> "mousetrap": "^1.6.3",
> "ng-inline-svg": "^9.1.0",
> "ng-recaptcha": "^5.0.0",
> "ng-snotify": "^4.3.1",
> "ng2-charts": "^2.3.0",
> "ngx-drag-scroll": "^8.0.0-beta.2",
> "ngx-owl-carousel-o": "^2.0.1",
> "ngx-perfect-scrollbar": "^8.0.0",
> "ngx-quill": "^7.3.11",
> "ngx-spinner": "^8.0.3",
> "node-sass": "^4.13.0",
> "npm": "^6.13.1",
> "protractor": "^5.4.2",
> "rxjs": "^6.4.0",
> "rxjs-compat": "^6.5.3",
> "upcast": "^4.0.0",
> "webpack-bundle-analyzer": "^3.6.0",
> "zone.js": "^0.9.1" },
答案 0 :(得分：0)
嗯，事实证明，我们从一开始就有同样的问题。我不知道如何无法看到版本号不同。
所以……如我所说的here：
"@angular-devkit/build-angular":"0.803.19至"@angular-devkit/build-angular" :0.803.5
就这样解决了这个问题。