Function calls are not supported in decorators but 'ConfigModule' was called.

[vadal]

I'm submitting a ... (check one with "x")

[x ] Regression (a behavior that used to work and stopped working in a new release)
[ ] Bug report  <!-- Please check the repository for a similar issue or PR before submitting -->
[ ] Support request => <!-- Please check the repository for a similar issue or PR before submitting -->
[ ] Feature request
[ ] Documentation issue or request

Current behavior

export function configLoaderFactory(http: HttpClient): ConfigLoader {
const endpoint =./assets/configuration/config.json;
return new ConfigHttpLoader(http, endpoint);
}

@NgModule({
imports: [
ConfigModule.forRoot({
provide: ConfigLoader,
useFactory: configLoaderFactory,
deps: [HttpClient]
})
],...
This code causes the following error, when I try to update angular version to 9.
Error: error TS100: Error during template compile of 'AppConfigModule'
Function calls are not supported in decorators but 'ConfigModule' was called.
Any idea?

Expected/desired behavior

I should not cause an error.
Minimal reproduction of the problem with instructions

What is the motivation / use case for changing the behavior?

Environment

• Angular version: 9.1.6

• ngx-config/core version: 9.0.0
• Browser:

• Chrome (desktop) version XX
• Chrome (Android) version XX
• Chrome (iOS) version XX
• Firefox version XX
• Safari (desktop) version XX
• Safari (iOS) version XX
• IE version XX
• Edge version XX

• For Tooling issues:

• Node version: 12.16.1
• Platform: Mac

• Others:

[anvial]

The same error in prod build

[AncelHernandez]

This issue is resolved by updating the tsconfig.package.json file to disable compiling the lib with ivy.

  "angularCompilerOptions": {
    "enableIvy": false
  }

When you build a lib with ivy the cli gives you a warning.

It is not recommended to publish Ivy libraries to NPM repositories.
Read more here: https://v9.angular.io/guide/ivy#maintaining-library-compatibility

Would push up a PR but i don't have permission.

[AncelHernandez]

PR Created, first PR on an open source repo so bare with me 😅

[elendil-software]

Any news about this issue/PR ?

I have the same problem.

Regards

[s-albert]

I have the same problem when I run "ng xi18n" (while ng build is fine): ERROR in Error during template compile of 'AppModule'
Function calls are not supported in decorators but 'ConfigModule' was called. When I comment out ConfigModule.forRoot ng xi18n returns without an error.

[fulls1z3]

see #169