最新版角度cli的角度材料问题

Question

我正在尝试使用角度材料创建导航栏。所以我从几个设置开始：

1）我用npm安装角度材料2）我在style.css中配置了主题，如下所示：

/* You can add global styles to this file, and also import other style files */
@import '~@angular/material/prebuilt-themes/deeppurple-amber.css';
@import '~https://fonts.googleapis.com/icon?family=Material+Icons';

3）我将angular材质主题链接到index.html，如下所示：

<link href="../node_modules/@angular/material/prebuilt-themes/indigo-pink.css" rel="stylesheet">
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">

有关我的环境的更多信息，请查看我的angular.json文件：

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "admin-portal": {
      "root": "",
      "sourceRoot": "src",
      "projectType": "application",
      "prefix": "app",
      "schematics": {},
      "targets": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "outputPath": "dist/admin-portal",
            "index": "src/index.html",
            "main": "src/main.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "src/tsconfig.app.json",
            "assets": [
              "src/favicon.ico",
              "src/assets"
            ],
            "styles": [
              "src/styles.css"
            ],
            "scripts": []
          },
          "configurations": {
            "production": {
              "fileReplacements": [
                {
                  "replace": "src/environments/environment.ts",
                  "with": "src/environments/environment.prod.ts"
                }
              ],
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "aot": true,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true
            }
          }
        },
        "serve": {
          "builder": "@angular-devkit/build-angular:dev-server",
          "options": {
            "browserTarget": "admin-portal:build"
          },
          "configurations": {
            "production": {
              "browserTarget": "admin-portal:build:production"
            }
          }
        },
        "extract-i18n": {
          "builder": "@angular-devkit/build-angular:extract-i18n",
          "options": {
            "browserTarget": "admin-portal:build"
          }
        },
        "test": {
          "builder": "@angular-devkit/build-angular:karma",
          "options": {
            "main": "src/test.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "src/tsconfig.spec.json",
            "karmaConfig": "src/karma.conf.js",
            "styles": [
              "src/styles.css"
            ],
            "scripts": [],
            "assets": [
              "src/favicon.ico",
              "src/assets"
            ]
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": [
              "src/tsconfig.app.json",
              "src/tsconfig.spec.json"
            ],
            "exclude": [
              "**/node_modules/**"
            ]
          }
        }
      }
    },
    "admin-portal-e2e": {
      "root": "e2e/",
      "projectType": "application",
      "targets": {
        "e2e": {
          "builder": "@angular-devkit/build-angular:protractor",
          "options": {
            "protractorConfig": "e2e/protractor.conf.js",
            "devServerTarget": "admin-portal:serve"
          },
          "configurations": {
            "production": {
              "devServerTarget": "admin-portal:serve:production"
            }
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": "e2e/tsconfig.e2e.json",
            "exclude": [
              "**/node_modules/**"
            ]
          }
        }
      }
    }
  },
  "defaultProject": "admin-portal"
}

但是当运行服务时，我得到如下所述的错误：

 ERROR in ./src/styles.css (./node_modules/raw-loader!./node_modules/postcss-loader/lib??embedded!./src/styles.css)
    Module build failed (from ./node_modules/postcss-loader/lib/index.js):
    Error: Can't resolve 'https://fonts.googleapis.com/icon?family=Material+Icons' in

doCesolve上的'C：\ Angular Projects \ admin-portal \ src'（C：\ Angular Projects \ admin-portal \ node_modules \ enhanced-resolve \ lib \ Resolver.js：180：19）at hook.callAsync（C：\ Angular Projects \ admin-portal \ node_modules \ enhanced-resolve \ lib \ Resolver.js：238：5）at _fn0（eval at create（C：\ Angular Projects \ admin-portal \ node_modules \ tapable \ lib \ HookCodeFactory.js： 32：10），：15：1）在hook.callAsync（C：\ Angular）的resolver.doResolve（C：\ Angular Projects \ admin-portal \ node_modules \ enhanced-resolve \ lib \ UnsafeCachePlugin.js：37：5） Projects \ admin-portal \ node_modules \ enhanced-resolve \ lib \ Resolver.js：238：5）at _fn0（eval at create（C：\ Angular Projects \ admin-portal \ node_modules \ tapable \ lib \ HookCodeFactory.js：32） ：10），：15：1）在_fn0处的hook.callAsync（C：\ Angular Projects \ admin-portal \ node_modules \ enhanced-resolve \ lib \ Resolver.js：238：5）（创建时的eval（C：\） Angular Projects \ admin-portal \ node_modules \ tapable \ lib \ HookCodeFactory.js：32：10），：12：1）at resolver.doResolve（C：\ Angular Projects \ admin-portal \ node_modules \ enhanced -resolve \ lib \ DescriptionFilePlugin.js：42：38）在_fn5上的hook.callAsync（C：\ Angular Projects \ admin-portal \ node_modules \ enhanced-resolve \ lib \ Resolver.js：238：5）中创建eval （C：\ Angular Projects \ admin-portal \ node_modules \ tapable \ lib \ HookCodeFactory.js：32：10），：57：1）at resolver.doResolve（C：\ Angular Projects \ admin-portal \ node_modules \ enhanced-解析\ lib \ ModuleKindPlugin.js：23：37）在_fn0处的hook.callAsync（C：\ Angular Projects \ admin-portal \ node_modules \ enhanced-resolve \ lib \ Resolver.js：238：5）（eval at create（ C：\ Angular Projects \ admin-portal \ node_modules \ tapable \ lib \ HookCodeFactory.js：32：10），：15：1）hook.callAsync（C：\ Angular Projects \ admin-portal \ node_modules \ enhanced-resolve \ lib \ Resolver.js：238：5）在_fn1（创建时的eval（C：\ Angular Projects \ admin-portal \ node_modules \ tapable \ lib \ HookCodeFactory.js：32：10），：24：1）

Answer 1

它不起作用的原因是因为你指定当你应该使用url函数时路径是本地的。 （此外，您同时指定主题和字体，您应该在index.html文件或styles.css文件中指定它们，而不是在两个文件中都指定它们）。

您可以使用以下配置或另一个配置：

1. 所有在styles.css的进口：

   @import '~@angular/material/prebuilt-themes/indigo-pink.css';
   @import url('https://fonts.googleapis.com/icon?family=Material+Icons');

2. 所有在index.html的进口：

   <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
   <link rel="stylesheet" href="../node_modules/@angular/material/prebuilt-themes/indigo-pink.css">