Angular 从 5 升级到 6 : asset path must start with the project source root

Question

我将我现有的应用程序从 Angular 5 升级到 6。

在我运行 ng serve 后，我收到以下错误:

The node_modules/font-awesome/fonts asset path must start with the project source root. Error: The node_modules/font-awesome/fonts asset path must start with the project source root. at assetPatterns.map.assetPattern (/home/kay/Documents/<>/<>/node_modules/@angular-devkit/build-angular/src/utils/normalize-asset-patterns.js:37:23)

正如您在下面看到的，我有一个 Assets 数组，它从节点模块包中提取字体。这在 Angular 5 中不是问题。

angular.json

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "demo": {
      "root": "",
      "sourceRoot": "src",
      "projectType": "application",
      "architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "outputPath": "dist",
            "index": "src/index.html",
            "main": "src/main.ts",
            "tsConfig": "src/tsconfig.app.json",
            "polyfills": "src/polyfills.ts",
            "assets": [
              "src/assets",
              "src/favicon.ico",
              "../node_modules/font-awesome/fonts"
            ],
            "styles": [
              "src/styles.scss",
              "src/theme.scss",
              "node_modules/font-awesome/css/font-awesome.min.css"
            ],
            "scripts": [
              "node_modules/hammerjs/hammer.min.js",
              "node_modules/auth0-js/build/auth0.min.js",
              "node_modules/moment/min/moment.min.js",
              "node_modules/ua-parser-js/dist/ua-parser.min.js",
              "node_modules/d3/dist/d3.min.js",
              "node_modules/wordcloud/src/wordcloud2.js",
              "node_modules/chart.js/dist/Chart.bundle.min.js",
              "node_modules/progressbar.js/dist/progressbar.min.js"
            ]
          },
          "configurations": {
            "production": {
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "aot": true,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true,
              "fileReplacements": [
                {
                  "replace": "src/environments/environment.ts",
                  "with": "src/environments/environment.prod.ts"
                }
              ]
            }
          }
        },
        "serve": {
          "builder": "@angular-devkit/build-angular:dev-server",
          "options": {
            "browserTarget": "demo:build"
          },
          "configurations": {
            "production": {
              "browserTarget": "demo:build:production"
            }
          }
        },
        "extract-i18n": {
          "builder": "@angular-devkit/build-angular:extract-i18n",
          "options": {
            "browserTarget": "demo:build"
          }
        },
        "test": {
          "builder": "@angular-devkit/build-angular:karma",
          "options": {
            "main": "src/test.ts",
            "karmaConfig": "./karma.conf.js",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "src/tsconfig.spec.json",
            "scripts": [
              "node_modules/hammerjs/hammer.min.js",
              "node_modules/auth0-js/build/auth0.min.js",
              "node_modules/moment/min/moment.min.js",
              "node_modules/ua-parser-js/dist/ua-parser.min.js",
              "node_modules/d3/dist/d3.min.js",
              "node_modules/wordcloud/src/wordcloud2.js",
              "node_modules/chart.js/dist/Chart.bundle.min.js",
              "node_modules/progressbar.js/dist/progressbar.min.js"
            ],
            "styles": [
              "src/styles.scss",
              "src/theme.scss",
              "node_modules/font-awesome/css/font-awesome.min.css"
            ],
            "assets": [
              "src/assets",
              "src/favicon.ico",
              "node_modules/font-awesome/fonts"
            ]
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": [
              "src/tsconfig.app.json",
              "src/tsconfig.spec.json"
            ],
            "exclude": [
              "**/node_modules/**"
            ]
          }
        }
      }
    },
    "demo-e2e": {
      "root": "",
      "sourceRoot": "",
      "projectType": "application",
      "architect": {
        "e2e": {
          "builder": "@angular-devkit/build-angular:protractor",
          "options": {
            "protractorConfig": "./protractor.conf.js",
            "devServerTarget": "demo:serve"
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": [
              "e2e/tsconfig.e2e.json"
            ],
            "exclude": [
              "**/node_modules/**"
            ]
          }
        }
      }
    }
  },
  "defaultProject": "demo",
  "schematics": {
    "@schematics/angular:component": {
      "prefix": "app",
      "styleext": "scss"
    },
    "@schematics/angular:directive": {
      "prefix": "app"
    }
  }
}

Answer 1

好的，阐明 Abann 的解决方案。 对于 sourceRoot 之外的 Assets ，您必须使用长格式。我确实认为 documentation可能会更清楚这一点。它指出

You can use this extended configuration to copy assets from outside your project. For instance, you can copy assets from a node package:

但实际上，它应该说您必须使用

"assets": [
          "src/assets",
          "src/favicon.ico",
           {
            "glob": "*",
            "input": "node_modules/font-awesome/fonts",
            "output": "assets/fonts/"
          }
        ],

assets/fonts/ 是您可能在 SASS/SCSS 文件的 $fa-font-path 变量覆盖中配置的路径。