从Angular 8升级到Angular 9时出错

Question

当我在运行时将我的应用程序从8号角更新到9号角时，就会出现此错误。

错误：-未处理的承诺拒绝：R3InjectorError [MatCommonModule -> HighContrastModeDetector-> HighContrastModeDetector-> HighContrastModeDetector]：NullInjectorError：没有提供程序 HighContrastModeDetector！ ;区域：任务：Promise.then;值： NullInjectorError：R3InjectorError [MatCommonModule-> HighContrastModeDetector-> HighContrastModeDetector-> HighContrastModeDetector]：NullInjectorError：没有提供程序 HighContrastModeDetector！错误：-core.js：41544未捕获的错误：A 已创建具有不同配置的平台。请 首先销毁它。

"dependencies": {
    "@angular/animations": "^9.0.0",
    "@angular/cdk": "^9.0.0",
    "@angular/common": "^9.0.0",
    "@angular/compiler": "^9.0.0",
    "@angular/core": "^9.0.0",
    "@angular/flex-layout": "^9.0.0-beta.29",
    "@angular/forms": "^9.0.0",
    "@angular/material": "^9.0.0",
    "@angular/platform-browser": "^9.0.0",
    "@angular/platform-browser-dynamic": "^9.0.0",
    "@angular/router": "^9.0.0",
    "@asymmetrik/ngx-leaflet": "^2.6.1",
    "@types/jquery": "^3.3.32",
    "angular-moment": "^1.3.0",
    "angular-web-storage": "^7.0.0-beta.1",
    "core-js": "^3.6.4",
    "jquery": "^3.4.1",
    "jsplumb": "^2.12.9",
    "leaflet": "^1.6.0",
    "moment": "^2.24.0",
    "ng2-panzoom": "^2.2.2",
    "ng7-dynamic-breadcrumb": "^2.0.0",
    "ngx-cacheable": "^1.4.0",
    "ngx-socket-io": "^3.0.1",
    "ngx-spinner": "^8.1.0",
    "ngx-toastr": "^10.0.4",
    "rxjs": "^6.5.4",
    "socket.io-client": "^2.3.0",
    "tslib": "^1.10.0",
    "zone.js": "^0.10.2"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.900.1",
    "@angular/cli": "^9.0.1",
    "@angular/compiler-cli": "^9.0.0",
    "@angular/language-service": "^9.0.0",
    "@types/jasmine": "~3.3.8",
    "@types/jasminewd2": "^2.0.8",
    "@types/leaflet": "^1.5.8",
    "@types/node": "^12.12.27",
    "codelyzer": "^5.1.2",
    "jasmine-core": "~3.4.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~4.4.1",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.1",
    "karma-jasmine": "~2.0.1",
    "karma-jasmine-html-reporter": "^1.5.2",
    "protractor": "^5.4.3",
    "ts-node": "~7.0.0",
    "tslint": "~5.15.0",
    "typescript": "~3.7.5"
  }