错误TS2339：类型“响应”中不存在属性“结果”

Question

我使用了一段代码构建和应用程序，它使用angular2，typescript和firebase从last.fm收集数据。

源代码可以在这里找到：https://github.com/vtts/mytunes

问题如何从json调用中转换结果？

github上的源代码

https://github.com/vtts/mytunes/blob/master/app/music/services/music.srv.ts

我收到以下错误：

app/music/services/music.service.ts(29,39): error TS2339: Property 'results' does not exist on type 'Response'. 
app/music/services/music.service.ts(51,36): error TS2339: Property 'album' does not exist on type 'Response'.

的package.json

{
  "name": "mytunes",
  "version": "1.0.0",
  "scripts": {
    "start": "tsc && concurrently \"npm run tsc:w\" \"npm run lite\" ",
    "lite": "lite-server",
    "postinstall": "typings install",
    "tsc": "tsc",
    "tsc:w": "tsc -w",
    "typings": "typings"
  },
  "license": "ISC",
  "dependencies": {
    "angular2": "2.0.0-beta.15",
    "bootstrap": "^3.3.6",
    "es6-shim": "^0.35.0",
    "firebase": "^2.4.2",
    "reflect-metadata": "0.1.2",
    "rxjs": "5.0.0-beta.2",
    "systemjs": "0.19.26",
    "zone.js": "0.6.10"
  },
  "devDependencies": {
    "concurrently": "^2.0.0",
    "lite-server": "^2.2.0",
    "typescript": "^1.8.10",
    "typings": "^0.7.12"
  }
}

tsconfig.json

{
    "compilerOptions": {
        "target": "es5",
        "module": "system",
        "moduleResolution": "node",
        "sourceMap": true,
        "emitDecoratorMetadata": true,
        "experimentalDecorators": true,
        "removeComments": false,
        "noImplicitAny": false,
        "outDir": "js"
    },
    "exclude": [
        "node_modules",
        "typings/main",
        "typings/main.d.ts"
    ]
}

Last.fm REST API

我正在使用以下REST API：

• http://www.last.fm/api/show/album.search
• http://www.last.fm/api/scrobbling

Answer 1

而不是重复使用键入为res

的变量Response

res = res.json();

创建一个新的

let result = res.json();

然后使用result代替res

以下行