“Please add a @NgModule annotation” Error on Angular2

Question

I have made a custom angular2(5.0.x) module that looks like this :

import { GuageService } from \'./services/guage.service\';
import { NgModule } from \'@angular         


        

Answer 1

I had the same problem. With angular 5+ and angular cli 1.5 it says that your code is not compatible and also your library is scoped package. I have managed to fix it with adding

 export * from './your-path'

In all my files (exporting everything from my library).

As i understood its you import as 3 party library You can try to run the application with

 ng serve --preserve-symlinks

also add flatModuleId in src/tsconfig.es5.json accordingly:

"flatModuleId": "@scope/library-name"

Link to github here

There is issue on github for more information