Unexpected value 'IonicAcademyModule' imported by the module 'AppModule'. Please add a @NgModule annotation

I m importing ’ IonicAcademyModule ’ from my custom ionic module.

this is my app.module.ts file

import { IonicAcademyModule, AcademyProvider } from ‘ngx-lovelace-mobile-lib-common’;

@NgModule({
declarations: [
MyApp,
],
imports: [
BrowserModule,
IonicStorageModule.forRoot(),
RestangularModule.forRoot(RestangularConfigFactory),
AppCommonModule,
IonicAcademyModule,
IonicModule.forRoot(MyApp, {tabsPlacement: ‘top’}),
],
bootstrap: [IonicApp],
entryComponents: [
MyApp
],
providers: [
AcademyProvider
]
});

I m using lazy loading for my project.

You can see the repo for custom ionic module.