问题
I upgraded an Angular App from v8 to v9. The project imports a custom UI library using Angular 8 and moment.js.
When I build it:
- It generates a warning:
WARNING in Entry point '@myLib/catalogue' contains deep imports into
'/Users/xyz/Projects/forms-frontend/node_modules/moment/locale/de'.
This is probably not a problem, but may cause the compilation of entry points to be out of order.
In the @myLib/catalogue.js
file of the library (inside node_modules folder), the moment.js DE locale is imported as following:
import 'moment/locale/de';
- Compilation errors are also triggered:
ERROR in Failed to compile entry-point @myLib/catalogue (es2015 as esm2015) due to compilation errors:
node_modules/@myLib/catalogue/fesm2015/catalogue.js:213:26 - error NG1010: Value at position 2 in the NgModule.imports of FormInputModule is not a reference: [object Object]
213 imports: [
~
214 CommonModule,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
...
219 TranslateModule
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
220 ],
~~~~~~~~~~~~~~~~~
The text of the warning seems explaining exactly the compilation error, where the position (2 in this case) is out of range of the imports array.
I have seen different articles/github issues about deep-links, but no working solution.
回答1:
you need to change your custom build of modules, so you need to make analog changes to the ones below, in my case i needed to change:
export class ThemeModule {
static forRoot(): ModuleWithProviders {
return <ModuleWithProviders>{
ngModule: ThemeModule,
providers: [
...NbThemeModule.forRoot(
{
name: 'default',
},
[DEFAULT_THEME, COSMIC_THEME, CORPORATE_THEME, DARK_THEME],
).providers,
],
};
}
}
to:
export class ThemeModule {
static forRoot(): ModuleWithProviders<ThemeModule> {
return {
ngModule: ThemeModule,
providers: [
...NbThemeModule.forRoot(
{
name: 'default',
},
[DEFAULT_THEME, COSMIC_THEME, CORPORATE_THEME, DARK_THEME],
).providers,
],
};
}
}
回答2:
In my case the issue was related to an imported library, that was not Angular v9 compatible (among other things it was not using deep links to Angular Material and moment.js).
I was lucky as the library is an intern one and I could fix these points and republish it. After that it built without any problems or changes in my project.
回答3:
In my case, I think there were some incompatibilities between some of the angular libraries that were imported. I think I previously manually bumped @angular/material
to 9.2.3
without bumping the other angular libraries.
When I created a new repository using: ng new test-ng9
and then added angular material ng add @angular/material
, there were no compilation issues.
So I took the dependencies that the angular cli included in the temp repo and replaced the ones in my existing repository. Then it worked fine.
Before:
"@angular/animations": "~9.1.6",
"@angular/cdk": "9.1.1",
"@angular/common": "~9.1.1",
"@angular/compiler": "~9.1.1",
"@angular/core": "~9.1.1",
"@angular/forms": "~9.1.1",
"@angular/material": "9.2.3",
"@angular/platform-browser": "~9.1.1",
"@angular/platform-browser-dynamic": "~9.1.1",
"@angular/router": "~9.1.1",
After:
"@angular/animations": "~9.1.6",
"@angular/cdk": "9.1.1",
"@angular/common": "~9.1.6",
"@angular/compiler": "~9.1.6",
"@angular/core": "~9.1.6",
"@angular/forms": "~9.1.6",
"@angular/material": "^9.2.4",
"@angular/platform-browser": "~9.1.6",
"@angular/platform-browser-dynamic": "~9.1.6",
"@angular/router": "~9.1.6",
来源:https://stackoverflow.com/questions/60726180/angular-9-value-at-position-x-in-the-ngmodule-imports-is-not-a-reference