无法识别 Angular 11 tsconfig 路径别名

Question

我正在使用 Angular 11 并尝试使用短导入，例如 import {smthg} from '@common' 而不是 import {smthg} from '../../. ./普通'

但我在 IDEA 中总是报错:TS2307: Cannot find module '@common' or its corresponding type declarations.

在尝试编译 .ts 文件时控制台出现同样的错误(ng serve)

有趣的是，当我将 /index 添加到 import 时，IDEA 停止了诅咒，但错误并没有在控制台中消失

myAngularProject
│   package.json
│   tsconfig.json
│   tsconfig.app.json
│   angular.json    
│
└───src
    │   main.ts
    │   index.html
    │
    └───app
        │  
        └───common
        │
        └───features

tsconfig.json:

/* To learn more about this file see: https://angular.io/config/tsconfig. */
{
  "compileOnSave": false,
  "compilerOptions": {
    "baseUrl": "./src",
    "paths": {
      "@common/*": ["app/common/*"],
      "@features/*": ["app/features/*"],
      "@platform/*": ["app/platform/*"],
      "@env": ["environments/environment"]
    },
    "outDir": "./dist/out-tsc",
    "forceConsistentCasingInFileNames": true,
    "strict": true,
    "noImplicitReturns": true,
    "noFallthroughCasesInSwitch": true,
    "sourceMap": true,
    "declaration": false,
    "downlevelIteration": true,
    "experimentalDecorators": true,
    "moduleResolution": "node",
    "importHelpers": true,
    "target": "es2015",
    "module": "es2020",
    "lib": [
      "es2018",
      "dom"
    ]
  },
  "angularCompilerOptions": {
    "strictInjectionParameters": true,
    "strictInputAccessModifiers": true,
    "strictTemplates": true
  }
}

tsconfig.app.json:

{
  "extends": "./tsconfig.json",
  "compilerOptions": {
    "outDir": "./out-tsc/app",
    "types": ["node"]
  },
  "files": [
    "src/main.ts",
    "src/polyfills.ts"
  ],
  "include": [
    "src/**/*.d.ts"
  ]
}

想法错误:

控制台 tsc 错误:

版本:

Angular CLI: 11.0.7
Node: 14.2.0
OS: darwin x64

Angular: 11.0.9
... animations, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router
Ivy Workspace: Yes

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1100.7
@angular-devkit/build-angular   0.1100.7
@angular-devkit/core            11.0.7
@angular-devkit/schematics      11.0.7
@angular/cli                    11.0.7
@schematics/angular             11.0.7
@schematics/update              0.1100.7
rxjs                            6.6.3
typescript                      4.0.5

Answer 1

事实证明， Angular 引擎允许根据 tsconfig 中“路径”中指定的内容为路径创建别名。

但是为了能够访问模块的子文件夹以及从模块顶层的 index.ts 导出的内容，您需要像这样指定“路径”:

{
  ...
  "compilerOptions": {
    "baseUrl": "src",
    "paths": {
      "@common/*": ["app/common/*"],
      "@common": ["app/common/index.ts"]
    }
  ...
  }
}