angular - 无法在 app.module 中导入 MatDialogModule

Question

我是 Angular 初学者，
我正在使用 Angular Material 对话框。首先，我在我的项目中添加了 Material 并从 @angular/material 使用它.

当我在 import { MatDialogModule } from '@angular/material/dialog'; 中添加 ( app.module.ts )) 时, 在编译项目时出现以下错误

 ERROR in node_modules/@angular/cdk/coercion/array.d.ts(10,60): error
 TS1005: ',' expected.
 node_modules/@angular/cdk/coercion/array.d.ts(10,61): error TS1005:
 ',' expected. node_modules/@angular/cdk/coercion/array.d.ts(10,75):
 error TS1144: '{' or ';' expected.
 node_modules/@angular/cdk/coercion/array.d.ts(10,77): error TS1011: An
 element access expression should take an argument.

为什么？

这是我的 package.json:

      {
      "name": "sales-maret",
      "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": "^7.2.16",
        "@angular/cdk": "^9.2.0",
        "@angular/common": "~7.2.0",
        "@angular/compiler": "~7.2.0",
        "@angular/core": "~7.2.0",
        "@angular/forms": "~7.2.0",
        "@angular/material": "^9.2.0",
        "@angular/platform-browser": "~7.2.0",
        "@angular/platform-browser-dynamic": "~7.2.0",
        "@angular/router": "~7.2.0",
        "core-js": "^2.5.4",
        "hammerjs": "^2.0.8",
        "material-icons": "^0.3.1",
        "rxjs": "~6.3.3",
        "tslib": "^1.9.0",
        "zone.js": "~0.8.26"
      },
      "devDependencies": {
        "@angular-devkit/build-angular": "~0.13.0",
        "@angular/cli": "~7.3.6",
        "@angular/compiler-cli": "~7.2.0",
        "@angular/language-service": "~7.2.0",
        "@types/node": "~8.9.4",
        "@types/jasmine": "~2.8.8",
        "@types/jasminewd2": "~2.0.3",
        "codelyzer": "~4.5.0",
        "jasmine-core": "~2.99.1",
        "jasmine-spec-reporter": "~4.2.1",
        "karma": "~4.0.0",
        "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",
        "protractor": "~5.4.0",
        "ts-node": "~7.0.0",
        "tslint": "~5.11.0",
        "typescript": "~3.2.2"
      }
    }

Answer 1

错误是因为@angular/material、@angular/cdk 和@angular/core 包的版本号不匹配。包 @angular/material 和 @angular/cdk 的版本是 9.2.0 但 @angular/core 的版本是 7.2.0 。

为了正常运行，三个包应该具有相同的版本。

您应该卸载@angular/material 和@angular/cdk 包，然后安装旧版本。

npm uninstall @angular/material
npm uninstall @angular/cdk
npm install @angular/material@7.2.0
npm install @angular/cdk@7.2.0