Angular 2 - 找不到模块angular / core

Question

我来这里问一个已经在另一篇文章中回答的问题，但所有的解决方案都不起作用。所以，我正在从angular网站的quickstart文件夹创建一个新的angular2应用程序。

我已经完成npm install并且一切正常，我的根目录下有node_modules文件夹。

但是，当我正在做ng serve时，这就是我得到的错误：

ERROR in angular/src/app/app.component.ts (1,27): Cannot find module '@angular/core'.
ERROR in angular/src/app/app.component.ts (8,14): Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning.
ERROR in angular/src/app/app.module.ts (1,31): Cannot find module '@angular/platform-browser'.
ERROR in angular/src/app/app.module.ts (2,26): Cannot find module '@angular/core'.
ERROR in angular/src/app/app.module.ts (16,14): Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning.
ERROR in angular/src/main.ts (1,32): Cannot find module '@angular/core'.
ERROR in angular/src/main.ts (2,40): Cannot find module '@angular/platform-browser-dynamic'.

这是我的文件夹结构：

这是我的tsconfig.json：

{
  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "lib": [ "es2015", "dom" ],
    "noImplicitAny": true,
    "suppressImplicitAnyIndexErrors": true,
    "typeRoots": [
      "../node_modules/@types/"
    ]
  },
  "compileOnSave": true,
  "exclude": [
    "node_modules/*",
    "**/*-aot.ts"
  ]
}

修改：

这是我的app.module.ts：

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';

import { AppComponent } from './app.component';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

Answer 1

我浏览了我的tsconfig.json文件，发现你的tsconfig.json与我的不同。 “包括”和“ “排除”键值对是不同的。看看。

<强> tsconfig.json

{
  "compilerOptions": {
    "allowSyntheticDefaultImports": true,
    "declaration": false,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "lib": [
      "dom",
      "es2015"
    ],
    "module": "es2015",
    "moduleResolution": "node",
    "sourceMap": true,
    "target": "es5"
  },
  "include": [
    "src/**/*.ts"
  ],
  "exclude": [
    "node_modules"
  ],
  "compileOnSave": false,
  "atom": {
    "rewriteTsconfig": false
  }
}

Answer 2

这是我的tsconfig。也许有帮助：

{
  "compileOnSave": false,
  "compilerOptions": {
    "outDir": "./dist/out-tsc",
    "baseUrl": "src",
    "sourceMap": true,
    "declaration": false,
    "moduleResolution": "node",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "target": "es5",
    "typeRoots": [
      "node_modules/@types"
    ],
    "lib": [
      "es2016",
      "dom"
    ]
  }
}