Angular 8-延迟加载模块:错误TS1323:仅当'--module'标志为'commonjs'或'esNext'时才支持动态导入 [英] Angular 8 - Lazy loading modules : Error TS1323: Dynamic import is only supported when '--module' flag is 'commonjs' or 'esNext'

问题描述

当我将Angular从7更新到Angular 8时，由于延迟加载模块而出错

When I updated Angular from 7 to Angular 8, getting error for lazy loading modules

我尝试了角度升级指南中提供的选项

I have tried the options, which are there in the angular upgradation guide

进行以下更改:

之前

    loadChildren: '../feature/path/sample- 
                         tage.module#SameTagModule'

之后

   loadChildren: () => import('../feature/path/sample- 
                      tags.module').then(m => m.CreateLinksModule)

错误TS1323:仅当'--module'标志为 'commonjs'或'esNext'.

error TS1323: Dynamic import is only supported when '--module' flag is 'commonjs' or 'esNext'.

推荐答案

您正在使用动态导入，因此必须像这样更改tsconfig.json才能将代码定位到esnext模块

You are using dynamic import so you have to change your tsconfig.json like this to target your code to esnext module

{
  "compileOnSave": false,
  "compilerOptions": {
    "baseUrl": "./",
    "outDir": "./dist/out-tsc",
    "sourceMap": true,
    "declaration": false,
    "module": "esnext", // add this line
    "moduleResolution": "node",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "importHelpers": true,
    "target": "es2015",
    "typeRoots": [
      "node_modules/@types"
    ],
    "lib": [
      "es2018",
      "dom"
    ]
  }
}

还要确保检查tsconfig.app.json没有类似这样的模块和目标配置

Also make sure to check tsconfig.app.json dont have module and target config something like this

{
  "extends": "./tsconfig.json",
  "compilerOptions": {
    "outDir": "./out-tsc/app",
    "types": []
  },
  "include": [
    "src/**/*.ts"
  ],
  "exclude": [
    "src/test.ts",
    "src/**/*.spec.ts"
  ]
}

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