--prod生成警告并升级到Angular 7后未加载已部署的应用程序

我最近将现有的Angular 6应用程序升级到了Angular7。我的大多数应用程序都基于Angular 6构建，然后我对其进行了升级。

这是我的package.json：

{
  "name": "app-name",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@agm/core": "^1.0.0-beta.5",
    "@angular/animations": "^7.0.0",
    "@angular/cdk": "^7.0.0",
    "@angular/common": "^7.0.0",
    "@angular/compiler": "^7.0.0",
    "@angular/core": "^7.0.0",
    "@angular/fire": "^5.0.2",
    "@angular/forms": "^7.0.0",
    "@angular/http": "^7.0.0",
    "@angular/material": "^7.0.0",
    "@angular/platform-browser": "^7.0.0",
    "@angular/platform-browser-dynamic": "^7.0.0",
    "@angular/router": "^7.0.0",
    "bootstrap": "^4.1.3",
    "core-js": "^2.5.4",
    "firebase": "^5.5.1",
    "npm": "^6.4.1",
    "rxjs": "^6.3.3",
    "sweetalert2": "^7.28.7",
    "zone.js": "^0.8.26"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.6.8",
    "@angular/cli": "~7.0.2",
    "@angular/compiler-cli": "^7.0.0",
    "@angular/language-service": "^7.0.0",
    "@types/googlemaps": "^3.30.13",
    "@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": "~5.3.0",
    "ts-node": "~5.0.1",
    "tslint": "~5.9.1",
    "typescript": "~3.1.3"
  }
}

这是我在跑步时收到的警告ng build --prod：

C:\Development\Angular\MyApp>ng build --prod
Date: 2018-10-24T17:36:28.367Z
Hash: a03e526b7e8175b25c06
Time: 32695ms
chunk {0} 0.cafd68819f30185de9af.js () 74.8 kB  [rendered]
chunk {1} 1.00224f689303f6e8aae8.js () 33.7 kB  [rendered]
chunk {2} 2.c9d485747518d5177cf8.js () 29.7 kB  [rendered]
chunk {3} 3.e25546a8136eb13e9af3.js () 31.5 kB  [rendered]
chunk {4} 4.120580aa06e187956a3a.js () 51.3 kB  [rendered]
chunk {5} 5.890208a2f9c910b04821.js () 62.8 kB  [rendered]
chunk {6} 6.659eb84df5c798c5ff39.js () 29.4 kB  [rendered]
chunk {7} runtime.4ee86023cc00ae14666e.js (runtime) 1.99 kB [entry] [rendered]
chunk {8} styles.f6067b501f9d2a5208bf.css (styles) 215 kB [initial] [rendered]
chunk {9} polyfills.644a401562606166b860.js (polyfills) 59.6 kB [initial] [rendered]chunk {10} main.be4cab576441165d61f9.js (main) 1.13 MB [initial] [rendered]
WARNING in ./src/app/tv/components/add-program-card/add-program-card.component.ngfactory.js
31:52-87 "export 'ɵangular_packages_forms_forms_bh' (imported as 'i2') was not found in '@angular/forms'

WARNING in ./src/app/tv/components/edit-program-card/edit-program-card.component.ngfactory.js
31:52-87 "export 'ɵangular_packages_forms_forms_bh' (imported as 'i2') was not found in '@angular/forms'

WARNING in ./src/app/news/components/edit-article-card/edit-article-card.component.ngfactory.js
33:52-87 "export 'ɵangular_packages_forms_forms_bh' (imported as 'i2') was not found in '@angular/forms'

WARNING in ./src/app/news/components/add-news-card/add-news-card.component.ngfactory.js
33:52-87 "export 'ɵangular_packages_forms_forms_bh' (imported as 'i2') was not found in '@angular/forms'

WARNING in ./src/app/team/components/add-player-card/add-player-card.component.ngfactory.js
33:52-87 "export 'ɵangular_packages_forms_forms_bh' (imported as 'i2') was not found in '@angular/forms'

WARNING in ./src/app/team/components/edit-player-card/edit-player-card.component.ngfactory.js
33:52-87 "export 'ɵangular_packages_forms_forms_bh' (imported as 'i2') was not found in '@angular/forms'

WARNING in ./src/app/boutique/components/add-merchandise-card/add-merchandise-card.component.ngfactory.js
39:52-87 "export 'ɵangular_packages_forms_forms_bh' (imported as 'i6') was not found in '@angular/forms'

WARNING in ./src/app/boutique/components/edit-merchandise-card/edit-merchandise-card.component.ngfactory.js
39:52-87 "export 'ɵangular_packages_forms_forms_bh' (imported as 'i6') was not found in '@angular/forms'

WARNING in ./src/app/games/components/edit-game-card/edit-game-card.component.ngfactory.js
45:52-87 "export 'ɵangular_packages_forms_forms_bh' (imported as 'i2') was not found in '@angular/forms'

WARNING in ./src/app/games/components/add-game-card/add-game-card.component.ngfactory.js
45:52-87 "export 'ɵangular_packages_forms_forms_bh' (imported as 'i2') was not found in '@angular/forms'

WARNING in ./src/app/components/login/login.component.ngfactory.js
49:53-88 "export 'ɵangular_packages_forms_forms_bh' (imported as 'i5') was not found in '@angular/forms'

最初，我没有太多警告。但是，当我尝试导航到Firebase托管上托管的应用程序时，我的应用程序未加载，并且在控制台上也出现此错误：

Uncaught TypeError: e is not a constructor
    at main.be4cab576441165d61f9.js:1
    at Xr (main.be4cab576441165d61f9.js:1)
    at main.be4cab576441165d61f9.js:1
    at new t (main.be4cab576441165d61f9.js:1)
    at Object.mi [as createNgModuleRef] (main.be4cab576441165d61f9.js:1)
    at e.create (main.be4cab576441165d61f9.js:1)
    at main.be4cab576441165d61f9.js:1
    at e.invoke (polyfills.644a401562606166b860.js:1)
    at Object.onInvoke (main.be4cab576441165d61f9.js:1)
    at e.invoke (polyfills.644a401562606166b860.js:1)

到目前为止我尝试过的事情：

1. 搜索ɵangular_packages_forms_forms_bh并发现已引用它，angular/forms-builds/bundles/forms.umd.min.js.map并在20分钟左右对其进行了更新。以前，但不知道该怎么做。

2. 在此GitHub Issue中发现了一个类似的问题，该问题指向此评论，但与我的错误无关。这表明我需要导出src/index.ts到目前为止没有的所有内容。

有人可以指出正确的方向，指出如何解决此错误？

更新

我在创建自定义窗体控制元件SharedModule实现ControlValueAccessor。这是相同的模板：

import { Component, EventEmitter, forwardRef, HostBinding, Input, OnInit, Output } from '@angular/core';
import { FormControl } from '@angular/forms';
import { Observable } from 'rxjs';
import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';
import { map, startWith } from 'rxjs/operators';

@Component({
  selector: 'app-category-list',
  templateUrl: './category-list.component.html',
  styleUrls: ['./category-list.component.scss'],
  providers: [
    {
      provide: NG_VALUE_ACCESSOR,
      useExisting: forwardRef(() => CategoryListComponent),
      multi: true
    }
  ]
})
export class CategoryListComponent implements OnInit, ControlValueAccessor {

  myControl = new FormControl();
  selectedValue;
  filteredOptions: Observable<string[]>;
  question = 'Would you like to add ';
  @Input() options: string[];
  @Output() added = new EventEmitter();

  // Function to call when the option changes.
  onChange(option: string) {

  }

  // Function to call when the input is touched (when the autocomplete is clicked).
  onTouched() {

  }

  get value() {
    return this.selectedValue;
  }

  ngOnInit() {
    this.filteredOptions = this.myControl.valueChanges
      .pipe(
        startWith(''),
        map(option => option ? this.filter(option) : this.options.slice())
      );
  }

  optionSelected(option) {
    if (option.value.indexOf(this.question) === 0) {
      const newOption = option.value.substring(this.question.length).split('?')[0];
      this.options.push(newOption);
      this.added.emit(newOption);
      this.myControl.setValue(newOption);
      this.writeValue(newOption);
    } else {
      this.myControl.setValue(option.value);
      this.writeValue(option.value);
    }
  }

  enter() {
    const controlValue = this.myControl.value;
    if (!this.options.some(entry => entry === controlValue)) {
      this.added.emit(controlValue);
      const index = this.options.push(controlValue);
      setTimeout(
        () => {
          this.myControl.setValue(controlValue);
          this.writeValue(controlValue);
        }
      );
    } else {
      this.writeValue(controlValue);
    }
  }

  // Allows Angular to update the model (option).
  // Update the model and changes needed for the view here.
  writeValue(option: string): void {
    console.log(`writeValue called with ${option}`);
    this.selectedValue = option;
    this.myControl.setValue(option);
    this.onChange(option);
  }

  // Allows Angular to register a function to call when the model (rating) changes.
  // Save the function as a property to call later here.
  registerOnChange(fn: (option: string) => void): void {
    this.onChange = fn;
  }

  // Allows Angular to register a function to call when the input has been touched.
  // Save the function as a property to call later here.
  registerOnTouched(fn: () => void): void {
    this.onTouched = fn;
  }

  private filter(value: string): string[] {
    let results;
    if (value) {
      results = this.options
        .filter(option => option.toLowerCase().indexOf(value.toLowerCase()) === 0);
      if (results.length < 1) {
        results = [this.question + value + '?'];
      }
    } else {
      results = this.options.slice();
    }
    return results;
  }

}

这些警告与此有关吗？