使用 Ngx-extended-pdf-viewer 构建应用程序时出错

Question

刚开始有角度，我正在尝试使用集成到我的应用程序中的 PDF 查看器。我在浏览要使用的库并尝试安装它时看到了ngx-extended-pdf-viewer。使用 ng-serve 安装并运行应用程序后，它显示如下错误：

node_modules/ngx-extended-pdf-viewer/lib/document-properties/pdf-document-properties-overlay/pdf-document-properties-overlay.component.d.ts:7:21

• 错误 TS2694：命名空间 '"D:/Programming/Angular/basics-assignment-1-start/node_modules/@angular/core/core"' 没有导出成员 'ɵɵComponentDeclaration'。

7 静态 ɵcmp： i0.ɵɵComponentDeclaration；

{
  "name": "my-first-app",
  "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": {
    "@angular/animations": "~11.0.0",
    "@angular/common": "~11.0.0",
    "@angular/compiler": "~11.0.0",
    "@angular/core": "~11.0.0",
    "@angular/forms": "~11.0.0",
    "@angular/platform-browser": "~11.0.0",
    "@angular/platform-browser-dynamic": "~11.0.0",
    "@angular/router": "~11.0.0",
    "bootstrap": "3.4.1",
    "ngx-extended-pdf-viewer": "^11.2.0-alpha.1",
    "rxjs": "~6.6.0",
    "rxjs-compat": "^6.0.0",
    "tslib": "^2.0.0",
    "zone.js": "~0.10.2"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.1100.0",
    "@angular/cli": "~11.0.0",
    "@angular/compiler-cli": "~11.0.0",
    "@types/jasmine": "~3.6.0",
    "@types/node": "^12.11.1",
    "codelyzer": "^6.0.0",
    "jasmine-core": "~3.6.0",
    "jasmine-spec-reporter": "~5.0.0",
    "karma": "~5.1.0",
    "karma-chrome-launcher": "~3.1.0",
    "karma-coverage": "~2.0.3",
    "karma-jasmine": "~4.0.0",
    "karma-jasmine-html-reporter": "^1.5.0",
    "protractor": "~7.0.0",
    "ts-node": "~8.3.0",
    "tslint": "~6.1.0",
    "typescript": "~4.0.2"
  }
}

我应该怎么做才能解决这个问题？谢谢。

Answer 1

节点模块文件夹可能会出现问题。检查包的文件夹，请检查 package.json 文件。