angular - 导入 Angular 9 库时出现 "Value at position 4 in the NgModule.imports of MyCommonLibraryModule is not a reference"

Question

我有两个通过 Angular 库共享公共(public)代码的 Angular 项目。我跑了ng update在两个项目和我的 Angular 库中尝试从 Angular 8 升级到 9。迁移脚本改变了我的 tsconfig.app.json文件来自

  "include": [
    "../src/**/*"
  ]

到

  "files": [
    "main.ts",
    "polyfills.ts"
  ],
  "include": [
    "src/**/*.d.ts"
  ]

Angular's migration guide状态

We have updated the tsconfig.app.json to limit the files compiled. If you rely on other files being included in the compilation, such as a typings.d.ts file, you need to manually add it to the compilation.

当我尝试运行我的应用程序( ng serve 来自使用该库的项目之一)时，出现错误

ERROR in Failed to compile entry-point my-common-library (module as esm5) due to compilation errors:
node_modules/my-common-library/fesm5/my-common-library.js:5207:30 - error NG1010: Value at position 4 in the NgModule.imports of MyCommonLibraryModule is not a reference: [object Object]

5207                     imports: [
                                  ~
5208                         CommonModule,
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 ...
5225                         MatAutocompleteModule
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5226                     ],
     ~~~~~~~~~~~~~~~~~~~~~

如果我更换图书馆的 tsconfig.app.json回到

  "include": [
    "../src/**/*"
  ]

然后一切正常。所以我想我的问题是

是 ng update不打算与图书馆合作？

这是一个错误吗？

我的“修复”是否可以，还是我错过了一些 Angular 9 优化？有没有更好的办法？

Answer 1

根据文件 https://update.angular.io/#8.0:9.0我们应该从特定组件中深度导入

import {MatAutocompleteModule} from '@angular/material/autocomplete';
@NgModule({
imports: [
MatAutocompleteModule
]