angular - 更新 tsconfig.json 和 package.json 后的错误

Question

对于某些情况，我刚刚开始浏览此处的提前编译指南，但我认为我的错误与它没有直接关系:https://angular.io/guide/aot-compiler

我正在使用 Visual Studio 2015 并将我的 Angular 2 项目更新为新发布的 2.4，一切都构建得很好。然而，我随后更改了我的 tsconfig.json 文件以将 "lib": [ "es2015", "dom"] 添加到我的 compilerOptions。该文件现在看起来像这样:

{
  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "lib": [ "es2015", "dom" ],
    "removeComments": false,
    "noImplicitAny": true,
    "outDir": "dist",
    "suppressImplicitAnyIndexErrors": true
  },
  "compileOnSave": true
}

此更改后，我重新构建并得到以下构建错误:

Build: duplicate identifier 'PropertyKey'.

我做了一些研究并决定从我的 package.json 文件中删除 "@types/core-js": "^0.9.34"，这似乎解决了那个错误，但我现在有以下新错误的几个实例:

Build: Cannot find name 'Set'

Build: Cannot find name 'Promise'

Build: Cannot find name 'Map'

这是我的完整 package.json 文件:

{
  "name": "angular2-quickstart",
  "version": "1.0.0",
  "scripts": {
    "start": "tsc && concurrently \"tsc -w\" \"lite-server\" ",
    "docker-build": "docker build -t ng2-quickstart .",
    "docker": "npm run docker-build && docker run -it --rm -p 3000:3000 -p 3001:3001 ng2-quickstart",
    "pree2e": "npm run webdriver:update",
    "e2e": "tsc && concurrently \"http-server -s\" \"protractor protractor.config.js\" --kill-others --success first",
    "lint": "tslint ./app/**/*.ts -t verbose",
    "lite": "lite-server",
    "postinstall": "typings install",
    "test": "tsc && concurrently \"tsc -w\" \"karma start karma.conf.js\"",
    "test-once": "tsc && karma start karma.conf.js --single-run",
    "tsc": "tsc",
    "tsc:w": "tsc -w",
    "typings": "typings",
    "webdriver:update": "webdriver-manager update"
  },
  "license": "MIT",
  "dependencies": {
    "@angular/common": "~2.4.0",
    "@angular/compiler": "~2.4.0",
    "@angular/compiler-cli": "^2.4.1",
    "@angular/core": "~2.4.0",
    "@angular/forms": "~2.4.0",
    "@angular/http": "~2.4.0",
    "@angular/platform-browser": "~2.4.0",
    "@angular/platform-browser-dynamic": "~2.4.0",
    "@angular/platform-server": "^2.4.1",
    "@angular/router": "~3.4.0",
    "@angular/upgrade": "~2.4.0",
    "angular-in-memory-web-api": "~0.1.16",
    "bootstrap": "^3.3.7",
    "core-js": "^2.4.1",
    "reflect-metadata": "^0.1.8",
    "rxjs": "5.0.1",
    "systemjs": "0.19.39",
    "zone.js": "^0.7.4"
  },
  "devDependencies": {
    "@types/node": "^6.0.45",
    "concurrently": "^3.0.0",
    "lite-server": "^2.2.2",
    "typescript": "^2.0.3"
  },
  "repository": {}
}

为了保持新版本的更新，我几乎一直在此处复制示例 package.json 文件的依赖项部分:https://angular.io/guide/quickstart

该链接适用于 JavaScript 版本，因为这是我能找到的唯一版本，但我实际上使用的是 TypeScript 2.1.4。因此，我可能有此文件的某些部分已过时。我只是不确定如何具体确定哪些部分。

Answer 1

I am not familiar with Visual Studio setup (intellij user). But maybe try using. "lib": [ "es6", "dom" ], Or possibly remove "lib": [ "es20125", "dom" ], completely and try using core-js @types. Look at my answer here on how to use core-js.

相关答案:

Angular 2 can't find Promise,Map,Set and Iterator

找不到名称“Promise” 这个错误让我相信您缺少 ES6 的类型定义。

Promise、Map 和 Set 是 es6 规范。

• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise
• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map
• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set

您应该使用 ES6 pollyfill 库。