Angular 2中未处理的承诺拒绝

Question

几分钟前，我刚刚在我的角度2应用程序中遇到404错误。虽然我的控制台中有404个错误，但我的终端没有错误。我在angular-cli.json文件的node_modules中包含了bootstrap。但是，我不知道未处理的承诺拒绝来自哪里。有关如何解决此问题的任何想法？

**404 error**

        Unhandled Promise rejection: Failed to load ../bootstrap/css/bootstrap.min.css ; Zone: <root> ; Task: Promise.then ; Value: Failed to load ../bootstrap/css/bootstrap.min.css undefined

        ZoneAwareError {__zone_symbol__error: Error: Uncaught (in promise): Failed to load ../bootstrap/css/bootstrap.min.css
            at resolvePromis…, rejection: "Failed to load ../bootstrap/css/bootstrap.min.css", promise: ZoneAwarePromise, zone: Zone, task: ZoneTask}

    GET http://localhost:4200/css/local.css 404 (Not Found)

**angular-cli**
{
  "project": {
    "version": "1.0.0-beta.28.3",
    "name": "frontend"
  },
  "apps": [
    {
      "root": "src",
      "outDir": "dist",
      "assets": [
        "assets",
        "favicon.ico"
      ],
      "index": "index.html",
      "main": "main.ts",
      "polyfills": "polyfills.ts",
      "test": "test.ts",
      "tsconfig": "tsconfig.json",
      "prefix": "app",
      "styles": [
        "styles.css",
         "../node_modules/bootstrap/dist/css/bootstrap.min.css",
         "../node_modules/font-awesome/css/font-awesome.min.css",




      ],
      "scripts": [





      ],
      "environments": {
        "source": "environments/environment.ts",
        "dev": "environments/environment.ts",
        "prod": "environments/environment.prod.ts"
      }
    }
  ],
  "e2e": {
    "protractor": {
      "config": "./protractor.conf.js"
    }
  },
  "lint": [
    {
      "files": "src/**/*.ts",
      "project": "src/tsconfig.json"
    },
    {
      "files": "e2e/**/*.ts",
      "project": "e2e/tsconfig.json"
    }
  ],
  "test": {
    "karma": {
      "config": "./karma.conf.js"
    }
  },
  "defaults": {
    "styleExt": "css",
    "prefixInterfaces": false,
    "inline": {
      "style": false,
      "template": false
    },
    "spec": {
      "class": false,
      "component": true,
      "directive": true,
      "module": false,
      "pipe": true,
      "service": true
    }
  }
}

Answer 1

您在 app.dashboard.html 中犯了错误，如下所示

哪个应该是