Angular material 日期选择器 - 产品中的空白弹出窗口

Question

不确定我错过了什么。当我运行在我的本地使用 ng build 和 ng serve

时，这很好用

但是当我转向生产时，它开始表现得像这样。然后我尝试使用 ng build --prod 和 ng serve --prod 在本地重现。现在我也可以在本地重现这个问题了。

我想要的：日期选择器弹出窗口应该以正确的样式出现并且应该能够 select 日期

现在的工作：在本地它正在使用 ng build 和 ng serve

问题是什么：在产品中（或使用 ng build --prod 和 ng serve --prod），弹出窗口显示为空。请下图

我尝试过的：经过研究，我发现了一些尝试使用 ng serve --prod --build-optimizer=false 的建议，也尝试过在 angular.json

中制作 "buildOptimizer": false

错误：当我点击日期选择器图标时，我可以在下面的错误

TypeError: Cannot read property 'getElementsByClassName' of

请告诉我调试此问题需要哪些更多信息。我正在考虑创建一个 stackblitz，但它似乎在 stackblitz 中工作。

package.json:

  "dependencies": {
    "@angular/animations": "^7.0.3",
    "@angular/cdk": "^7.0.3",
    "@angular/common": "~7.0.0",
    "@angular/compiler": "~7.0.0",
    "@angular/core": "~7.0.0",
    "@angular/flex-layout": "^7.0.0-beta.19",
    "@angular/forms": "~7.0.0",
    "@angular/http": "~7.0.0",
    "@angular/material": "^7.0.3",
    "@angular/material-moment-adapter": "^7.3.4",
    "@angular/platform-browser": "~7.0.0",
    "@angular/platform-browser-dynamic": "~7.0.0",
    "@angular/router": "~7.0.0",
    "@swimlane/ngx-charts": "^10.1.0",
    "angular-google-charts": "^0.1.3",
    "bootstrap": "^4.1.3",
    "chart.js": "^2.8.0",
    "core-js": "^2.5.4",
    "dotenv": "^7.0.0",
    "hammerjs": "^2.0.8",
    "jquery": "^3.3.1",
    "moment": "^2.24.0",
    "ng-pick-datetime": "^5.2.6",
    "ng2-charts": "^2.0.3",
    "ng2-tooltip-directive": "^2.1.8",
    "ng4-charts": "^1.0.2",
    "ngx-cookie-service": "^2.1.0",
    "rxjs": "~6.3.3",
    "rxjs-compat": "^6.3.3",
    "zone.js": "~0.8.26"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "^0.11.4",
    "@angular/cli": "~7.0.2",
    "@angular/compiler-cli": "~7.0.0",
    "@angular/language-service": "~7.0.0",
    "@types/jasmine": "~2.8.8",
    "@types/jasminewd2": "~2.0.3",
    "@types/jquery": "^3.3.29",
    "@types/node": "~8.9.4",
    "codelyzer": "~4.5.0",
    "jasmine-core": "~2.99.1",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~3.0.0",
    "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",
    "ngx-spec": "^2.0.0",
    "protractor": "~5.4.0",
    "ts-node": "~7.0.0",
    "tslint": "~5.11.0",
    "typescript": "~3.1.1"
  }

html:

        <mat-form-field>
                <mat-label>From Date</mat-label>
                <input  [value]="date.value" matInput [matDatepicker]="summBoardFromDatePicker"  placeholder="From Date" [(ngModel)]="summBoardFromDate">
                <mat-datepicker-toggle  matSuffix [for]="summBoardFromDatePicker"></mat-datepicker-toggle>
                <mat-datepicker #summBoardFromDatePicker></mat-datepicker>
        </mat-form-field>

Answer 1

似乎是 material 日期选择器的缺陷。不是解决方案，而是对我有用的解决方法。您可以尝试在 angular.json

中进行以下更改吗

"optimization": false
"aot": false
"buildOptimizer": false

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